CA2187014C - Method and apparatus for electronic license distribution - Google Patents
Method and apparatus for electronic license distributionInfo
- Publication number
- CA2187014C CA2187014C CA002187014A CA2187014A CA2187014C CA 2187014 C CA2187014 C CA 2187014C CA 002187014 A CA002187014 A CA 002187014A CA 2187014 A CA2187014 A CA 2187014A CA 2187014 C CA2187014 C CA 2187014C
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- CA
- Canada
- Prior art keywords
- license
- electronic
- medium
- enabling
- feature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 91
- 238000009826 distribution Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 description 17
- 238000012545 processing Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013073 enabling process Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241000408495 Iton Species 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/105—Arrangements for software license management or administration, e.g. for managing licenses at corporate level
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
Abstract
A method and apparatus that allow for the distribution of electronic licenses are disclosed. The method and apparatus may be used in a network or non-network environment to facilitate product licensing and upgrades. Further, the method and apparatus accommodate the use of compact disc read-only media (CD ROM) product distribution. The method and apparatus provide the ability to disable electronically distributed material. Further, the method and apparatus provide the ability to license use of the material by some entity in the distribution chain. The method and apparatus protect multiple electronic licenses by disabling the license such that an enabler key is necessary to enable a license for use. The method and apparatus reduce the cost of electronic distribution by providing the ability to distribute multiple products, product versions, and licenses that are unusable prior to the execution of an enablement procedure.
Description
~1~7~14 BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
The present invention relates to the field of electronic license distribution systems.
1. FIELD OF THE INVENTION
The present invention relates to the field of electronic license distribution systems.
2. BACKGROUND ART
In a non-networked environment, licensing of computer software can be accomplished on a user-by-user basis. That is, a license may be authorized based on the number of physical copies of a computer software program (e.g., application, operating system, etc.) purchased by a user.
In a networking environment, one physical copy of a software program can be licensed for use by multiple users. In this case, the number of users, or connections, is not based on the number of physical copies of a software program. One copy of a software program to execute in a network environment can be licensed for a certain number of users or connections.
Thus, licensing in a non-network environment cannot be used to license software in a network environment.
In a network environment, an existing server contains software (e.g., operating system and application software) that may need to be upgraded. For example, a new version of software may become available. Further, it may 21 ~~914-become necessary to upgrade the number of connections allowed for a software program.
A prior art licensing scheme in a network environment addresses the licensing of network software (e.g., server's operating system). Figure 6A is a diagram illustrating network software including a "burned in" license. The diagram shows that software 610 comprises executable portion 610A and license 610B, wherein the license 610B becomes a permanent part of software 610. This licensing system encrypts a serial number and application number.
The encrypted result is placed in a specific location on the network server.
Under this scheme, the encrypted serial and application numbers become a permanent part of the server (i.e., are "burned in").
In another prior art method, software distribution using Compact Disc Read-Only Memory (CD ROM) has become increasingly popular because of a CD ROM's capacity and durability. Figure 6B is a prior art diagram illustrating storage of executable 620 on a CD ROM that has no intrinsic value. Lirense 622 that rnntains value may be distributed together with software 620 or separately.
Because of its storage capacity, a CD ROM can be used to store multiple products (e.g., software applications) and licensing schemes. Thus, for example, it is possible for a manufacturer offering an extensive product line to distribute its product line using the CD ROM media. Unless the products are protected in some manner, all of the products shipped are accessible to a purchaser that may not have purchased the entire line. Thus, it is necessary to implement a scheme to disable the products shipped on CD ROM. Further, to enable those products that are purchased. The license 622 may be obtained electronically or otherwise when the licenses are too numerous or complex or both to be verbally from a licensing center.
In a non-networked environment, licensing of computer software can be accomplished on a user-by-user basis. That is, a license may be authorized based on the number of physical copies of a computer software program (e.g., application, operating system, etc.) purchased by a user.
In a networking environment, one physical copy of a software program can be licensed for use by multiple users. In this case, the number of users, or connections, is not based on the number of physical copies of a software program. One copy of a software program to execute in a network environment can be licensed for a certain number of users or connections.
Thus, licensing in a non-network environment cannot be used to license software in a network environment.
In a network environment, an existing server contains software (e.g., operating system and application software) that may need to be upgraded. For example, a new version of software may become available. Further, it may 21 ~~914-become necessary to upgrade the number of connections allowed for a software program.
A prior art licensing scheme in a network environment addresses the licensing of network software (e.g., server's operating system). Figure 6A is a diagram illustrating network software including a "burned in" license. The diagram shows that software 610 comprises executable portion 610A and license 610B, wherein the license 610B becomes a permanent part of software 610. This licensing system encrypts a serial number and application number.
The encrypted result is placed in a specific location on the network server.
Under this scheme, the encrypted serial and application numbers become a permanent part of the server (i.e., are "burned in").
In another prior art method, software distribution using Compact Disc Read-Only Memory (CD ROM) has become increasingly popular because of a CD ROM's capacity and durability. Figure 6B is a prior art diagram illustrating storage of executable 620 on a CD ROM that has no intrinsic value. Lirense 622 that rnntains value may be distributed together with software 620 or separately.
Because of its storage capacity, a CD ROM can be used to store multiple products (e.g., software applications) and licensing schemes. Thus, for example, it is possible for a manufacturer offering an extensive product line to distribute its product line using the CD ROM media. Unless the products are protected in some manner, all of the products shipped are accessible to a purchaser that may not have purchased the entire line. Thus, it is necessary to implement a scheme to disable the products shipped on CD ROM. Further, to enable those products that are purchased. The license 622 may be obtained electronically or otherwise when the licenses are too numerous or complex or both to be verbally from a licensing center.
SUMMARY OF THE INVENTION
The present invention allows for the distribution of electronic licenses.
The present invention can be used in a network or non-network environment to facilitate product licensing and upgrades. Further, the present invention accommodates the use of compact disc read-only memory (CD ROM) product distribution. The present invention provides the ability to disable electronically distributed material. Further, the present invention provides the ability to license use of the material by some entity in the distribution IO chain.
The present invention protects multiple electronic licenses by disabling the license; it requires an enabler key to enable a license for use. The present invention reduces the cost of electronic distribution by providing the ability to distribute multiple products, product versions, product features, and licenses that are unusable prior to the execution of an enablement procedure. An application may still be able to execute; it may be able to be upgraded dynamically by the addition of the neressary license(s). Thus, it is essentially the execution of particular licensable functions, features, etc., that are enabled by the present invention.
Thus, the present invention provides the ability to take advantage of the benefits of CD-ROM, or any other (high capacity or otherwise), distribution media. For example, a generic distribution CD-ROM can be manufactured for a wider enduser base. The generic CD-ROM can contain multiple products, product features, and product versions. The CD-ROM can be shipped to an enduser interested in purchasing one or more products, product features, and product versions. The enduser can contact a fulfillment entity to purchase products contained on the distribution CD-ROM. In return, the consumer receives enabling information that can be used with enablement software operating on the enduser's computer system to enable the purchased product(s). The enabling information may comprise the complete license or the information needed to create a complete license. Information that the user provides, such as user's name, may become part of the enabling information.
Thus, the personalized information may be used to identify the licensor, for example.
IO The present invention provides the ability to delay the choice of product or product version until installation or pre-installation. The present invention can be used with a network server product that limits connection access electronically using connection-stratified server connection licenses or connection-stratified server executable files.
21~7~14 BRIEF DESCRIPTION OF THE DRAWINGS
Figure I is a flow diagram illustrating a LicenseDistribution overview;
Figure 2 is a flow diagram illustrating a disableLicenseSets process;
Figure 3 is a flow diagram illustrating a setsToDistributionMedia process;
Figure 4 is a flow diagram illustrating a licenseEnable process;
Figure 5 is a flow diagram illustrating an overview of the distribution process of the present invention;
Figures 6A and 6B are diagrams illustrating prior art licensing schemes;
and Figure 7 is a diagram illustrating the licensing scheme of the present invention.
2~g7014 DETAILED DESCRIT''ITON OF THE INVEI~TT10N
A method and apparatus for electronic license distribution is described.
In the following description, numer~ pus specific details are set forth in order to provide a more thorough description of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention.
The present invention employs a scheme for creating, extracting, transferring, enforcing, and managing electronic licences as described in U.S.
',No. 5,553,143 issued September 3, 1996, entitled "METHOD AND
APPARATUS FOR ELECTRONIC LICENSING" and assigned to the assignee of the present invention. The licenses created using this scheme consist of a clear text portion and an encrypted portion.
Figure 5 illustrates an overview of the distribution process of the present invention. After an electronic license has been created and a portion of the license encrypted, the present invention disables the license for distribution. A license is disabled (i.e., doubly-encrypted) using a special enQyption algorithm that is applied to the encrypted portion of a license. An enabler key is created during the encryption process. The enabler key may comprise a serial number, number of connections (i.e., number of network .
connections allowed at one time), major and minor product version identifiers, ten random numbers, and three checksum values. The enabler key is stored in a enabler key database that is shipped to a fulfillment agent (e.g., an extractor or other member of the distribution chain).
The present invention allows for the distribution of electronic licenses.
The present invention can be used in a network or non-network environment to facilitate product licensing and upgrades. Further, the present invention accommodates the use of compact disc read-only memory (CD ROM) product distribution. The present invention provides the ability to disable electronically distributed material. Further, the present invention provides the ability to license use of the material by some entity in the distribution IO chain.
The present invention protects multiple electronic licenses by disabling the license; it requires an enabler key to enable a license for use. The present invention reduces the cost of electronic distribution by providing the ability to distribute multiple products, product versions, product features, and licenses that are unusable prior to the execution of an enablement procedure. An application may still be able to execute; it may be able to be upgraded dynamically by the addition of the neressary license(s). Thus, it is essentially the execution of particular licensable functions, features, etc., that are enabled by the present invention.
Thus, the present invention provides the ability to take advantage of the benefits of CD-ROM, or any other (high capacity or otherwise), distribution media. For example, a generic distribution CD-ROM can be manufactured for a wider enduser base. The generic CD-ROM can contain multiple products, product features, and product versions. The CD-ROM can be shipped to an enduser interested in purchasing one or more products, product features, and product versions. The enduser can contact a fulfillment entity to purchase products contained on the distribution CD-ROM. In return, the consumer receives enabling information that can be used with enablement software operating on the enduser's computer system to enable the purchased product(s). The enabling information may comprise the complete license or the information needed to create a complete license. Information that the user provides, such as user's name, may become part of the enabling information.
Thus, the personalized information may be used to identify the licensor, for example.
IO The present invention provides the ability to delay the choice of product or product version until installation or pre-installation. The present invention can be used with a network server product that limits connection access electronically using connection-stratified server connection licenses or connection-stratified server executable files.
21~7~14 BRIEF DESCRIPTION OF THE DRAWINGS
Figure I is a flow diagram illustrating a LicenseDistribution overview;
Figure 2 is a flow diagram illustrating a disableLicenseSets process;
Figure 3 is a flow diagram illustrating a setsToDistributionMedia process;
Figure 4 is a flow diagram illustrating a licenseEnable process;
Figure 5 is a flow diagram illustrating an overview of the distribution process of the present invention;
Figures 6A and 6B are diagrams illustrating prior art licensing schemes;
and Figure 7 is a diagram illustrating the licensing scheme of the present invention.
2~g7014 DETAILED DESCRIT''ITON OF THE INVEI~TT10N
A method and apparatus for electronic license distribution is described.
In the following description, numer~ pus specific details are set forth in order to provide a more thorough description of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention.
The present invention employs a scheme for creating, extracting, transferring, enforcing, and managing electronic licences as described in U.S.
',No. 5,553,143 issued September 3, 1996, entitled "METHOD AND
APPARATUS FOR ELECTRONIC LICENSING" and assigned to the assignee of the present invention. The licenses created using this scheme consist of a clear text portion and an encrypted portion.
Figure 5 illustrates an overview of the distribution process of the present invention. After an electronic license has been created and a portion of the license encrypted, the present invention disables the license for distribution. A license is disabled (i.e., doubly-encrypted) using a special enQyption algorithm that is applied to the encrypted portion of a license. An enabler key is created during the encryption process. The enabler key may comprise a serial number, number of connections (i.e., number of network .
connections allowed at one time), major and minor product version identifiers, ten random numbers, and three checksum values. The enabler key is stored in a enabler key database that is shipped to a fulfillment agent (e.g., an extractor or other member of the distribution chain).
During disablement, a checksum is generated based on information in the license and the enabler key. Further, the doubly-encrypted portion of a license is again encrypted using an extractor's password. An extractor's password is a unique value assigned to an extractor (e.g., Manufacturer, Original Equipment Manufacturer or another reseller).
Disabled licenses are shipped to the extraction agent. Using its extractor's password, an extractor can decrypt the extractor encryption from the license. The result of this process is a disabled (i.e., doubly-encrypted) license.
Disabled licenses are packaged with the products) and licenses) and shipped to an installer (i.e., enduser or other installer). An installer can select the product and licensing combination(s). Using this selection, the installer obtains the enabler key from the fulfillment agent. The installer uses the enabler key to enable the desired product licensing selection. The product and license can then be installed on an enduser's system. Alternatively, the lirense may distributed without disablement when it is not necessary to do so. A license (containing enabling information) may be distributed without disabling it when all licenses can be communicated by a fulfilling entity, e.g., by a voice operator. Thus, for example, the license may be distributed without disablement when it is not too large for a voice operator to fulfill (communicate) it in its entirety at once in a short time and in a manner that is simple for the enduser to receive and understand.
The present invention can be used to provide the ability to distribute one or more product and licensing combinations on a single distribution media (e.g., Compact Disc-Read Only Memory, "CD-ROM"). Figure 7 is a diagram illustrating the licensing scheme of the present invention that provides flexible distribution. The diagram illustrates software (i.e., WO 95!27354 PCT/US94/07504 _g_ executable) 620 and license 720. The valuable, complete license 720 may comprise incomplete license 710 that has no value. An enable key 712 that has no value may be procured electronically or by voice operator. Because licenses are disabled and cannot be enabled with an enabler key, the products supplied on a CD-ROM are protectable. A product becomes operable only when a enabler key is obtained from a fulfillment entity. Thus, the present invention provides the ability to reduce the costs of distribution by allowing multiple product distribution with a single distribution.
Another application for the present invention involves the distribution of demonstration versions of a product. Before, a demonstration distribution contained only a demonstration version of a product. Using the present invention, a demonstration distribution may contain both demonstration and production versions of products. Initially, a demonstration version is enabled, and a production version is disabled. After assessing the product using the demonstration version, an enduser may purchase the production version, obtain an enabler key, and (using an enablement routine) enable the production version. Thus, only one distribution was needed.
Figure 1 illustrates a LicenseDistribution overview flow. At block 102, disableLicenseSets is invoked to disable one or more sets of electronic licenses.
At block 104, license set extraction files are provided to an extractor. At block 106, setsToDistributionMedia is invoked to receive, extract and transfer electronic licenses to a final distribution media (e.g., CD-ROM). Further, a decryption process is performed using an extractor's password. At block 108, licenseEnablement is invoked to decrypt the disabled portions of the license.
At block 110, the enabled license is copied to a secure directory of a computer system on which the license is to be used. At block 112, processing ends.
~ 180 ~,~
LICENSE DISABLEMENT
Once license sets (i.e., one or more licenses) are created, the present S invention provides the ability to disable the licenses to further protect the licenses. In the present invention, disablement includes the generation of a random number using a random number generator. In the preferred embodiment, a random number generator provided in Borland Inc.'s Application Program Interface (API) library is used. However, any random number generator may be used with the present invention without departing from the scope of the present invention. The random number generated identifies an offset within an encrypted portion of a license. For example, a license having 320 positions comprises I60 positions for the clear text portion and the remaining 160 positions for the encrypted portion.
The encrypted value found at the offset within the encrypted area is encrypted a second time using the random number as the encryption key. The random number is appended to an Enabler key and added to a checksum. This process can be repeated multiple times. For example, if this double-encryption technique is performed ten times, ten locations within tile encrypted portion of a license can be doubly-encrypted.
After a license is disabled using this double-encryption technique, the encrypted portion of the license is again encrypted using an extractor's (e.g., reseller's) password and RSA's Bsafe *RC2* secret key encryption algorithm.
This can be used to protect the licenses while in transit to the extracting agent.
* trademark r 29 870 4 The final checksum comprised of information from the lirense and the random numbers generated during disablement is broken up into byte-size pieces and stored at multiple locations in the enabler key. The checksum can be broken down to any number of byte-size pieces and stored in the same number of locations within the enabler. Further, the enabler key and lirense information (e.g., serial number, number of connections, major product version, and minor product version) are stored as a record in an enabler key database.
An enabler key database comprising enabler keys is supplied to a fulfillment agent. Given licensing information, a fulfillment agent can supply an enabler key to an enduser or installation agent for use in the enablement process; the licensing information may comprise product numbers and the number of connections, for example. That is, a fulfillment agent can access the enabler key database using the licensing information supplied by the installation agent or enduser and extract the enabler key associated with the desired license. Once the fulfillment agent supplies the enabler key, the customer can execute an enablement procedure on the installation computer system and, using the enabler key, enable the desired lirense.
The double-encryption process can be performed on each license in a license set. A license set can contain multiple licenses, each licensing some number of rnnnections for a given product or version of a product. As each lirense in a set is disabled using the above technique, it can be put in a buffer.
Once all of the licenses in the set have been processed, the license set can be appended to a license inventory extraction database file. Each inventory extraction database file is given a unique name that identifies the different versions of license sets contained in a particular database file. License inventory extraction database files are distributed to an extractor (i.e., reseller or manufacturer).
Statistical information associated with the license set creation session can be appended to a sessions database. Such information includes a session identifier, a starting serial number, a number of lirenses created, a last serial number, a manufacturer identifier, license flags, and an extractor password.
Any value may be used to identify a session. For example, the session identifier can be initialized to a time that a session is begun. This value can be represented by the total number of seconds since 1980. Any other value can be used to identify a session.
The first serial number used on the first license set is retained in the starting serial number field. The number of licenses created indicates the total number of license sets created in the session, or batch. The last serial number used in the last set of licenses created in the session is retained in the last serial number field. A manufacturer identifier value indicates the identification number of the extracting agent for whom the license sets were created.
License flags indicate the lirense flags that were set in each license in set.
License flags can be used to provide licensing information such as type of license and required, associated licenses. The password used with the RC2 encryption on the encrypted area of the server connection license is stored in the extractor password field.
Figure 2 illustrates a disableLicenseSets process flow. In block 202, an electronic license, i.e., a server connection license, is obtained from storage. In block 204, a checksum is generated using a serial number, number of 2~ X701 ~
connections, i.e., network connections, and product version number values.
In block 206, a random number is generated, which is added to the checksum generated in block 204.
The checksum includes of the number of connections allowed by a license, the serial number of the license, and the major and minor product version numbers. For example, a version number "3.01" comprises a major product number "3" and a minor product number "Ol". The serial number is the same for every license in each license set within each product or product version. The number of connections can vary based on the product, version of the product, and/or the manufacturer's licensing policy. Further, a series of random numbers are included in the final checksum value for a license.
At blocks 208 and 210, a value in the encryption area of the electronic license and at the position indicated by the random number is encrypted. At decision block 212 (i.e., "locations encrypted?"), when all locations (e.g., ten positions) have not been disabled, processing continues at block 206 to disable the remaining positions. When all locations are disabled, processing continues at block 214.
At block 214, the checksum is split into byte-size pieces, and each byte is placed at different locations within an enabler key. An enabler key is used to enable a disabled license. An enabler key includes the serial number, number of connections, and major and minor product version numbers associated with a license. Further, the enabler key includes the randomly generated numbers) that identify the disabled locations within the encrypted portion of the license. At block 216, the enabler key, serial number, number of WO 95/27354 i ~ PCT/US94/07504 connections and product version number (i.e., major and minor version numbers) are retained in memory.
At block 218, the doubly-encrypted portion of the license is encrypted using an extractor's password. At block 220, the license is written to a license set area in memory (e.g., Random Access Memory, RAM). At decision block 222 (i.e., "more stratifications in set?"), when there are additional licenses in the license set (e.g., licenses allowing a different number of connections), processing continues at block 202 to get the next lirense in the license set.
When all of the licenses in a set have been processed, processing continues at block 224 to copy the license set stored in memory to an extraction database file.
At block 226, the enabler keys) associated with the licenses) in the license set are written to an enabler key database file. At block 228, information related to this session can be written to a sessions database. At decision block 230 (i.e., "more stratifications in set?"), when additional lirense sets are to be created, processing continues at block 202 to get a next license. When additional license sets are not created, processing ends at block 232.
DISTRIBUTION
Inventory extraction database files are transferred to an extracting agent.
The extracting agent can incorporate the inventory extraction database files to extracting agent's inventory extraction database. Licenses can be extracted from the extracting agent's inventory extraction database to a final distribution media for transmittal to a purchaser. The number of different types or versions of license sets and the format (e.g., multiple types of licenses on the f...... - 21870 1 ~
same distribution media) used in placing them on the final distribution media (e.g., floppy diskette and CD-ROM).
During extraction, a license is read into memory. The lirense's encrypted area is decrypted using Bsafe's *RC2* secret key decryption algorithm.
The license is stored in a file on the distribution media. The name of the file indicates the number of connections allowed by the lirense. Subdirectories can further be used to segregate multiple types or version of a prodL~~a's licenses placed on the same distribution media. The subdirectory ssa~es can be used to IO represent license set's types and versions. A license set type can reflect a product or a product version.
Disabled licenses can be shipped to an extraction agent (e.g., reseller or manufacturer). An extractor can extract and transfer license sets to a final I5 distribution media for shipment (e.g., to an enduser or installation agent).
Figure 3 illustrates a setsToDistributionMedia proress flow. At block 302, the disabled licenses shipped to an extraction agent are added to the extraction agent's license extraction database file. At block 304, a final distribution media format can be determined based on the extraction agent's identification value 20 in a license in a license set.
At decision block 306 (i.e., "multiple versions or types of server connection licenses on same media?"), when multiple versions or types of licenses are included on the same distribution media, processing continues at 25 block 308 to create subdirectories to store the multiple licenses.
Processing continues at block 3I0. When multiple versions or types of licenses are not included, processing continues at block 310.
* trademark i WO 95/27354 ~ PCT/US94107504 At block 310, licenses are extracted from the license extraction database, and the extractor's encryption is stripped off each license in a set using a decryption algorithm and the extractor's password. At block 312, the license set is written to the final distribution media. At decision block 314 (i.e., "more sets?"), when additional license sets are intended on the same distribution media, processing continues at decision block 306 to process the remaining license sets. When additional license sets are not intended on the same distribution media, processing ends at block 316.
LICENSE ENABLEMENT
A licensing final distribution media is packaged with the products) for which it is associated and shipped to an installer. The licenses contained in the final distribution media must be enabled and installed to license a product for use. Thus, an enabling procedure must be executed to enable a license. The enabling procedure requires the enabler key to decrypt the encrypted portion of the license. The enabler key is available to the installer from a fulfillment agent upon payment of the purchase price of a product.
An enablement process executing on the system which the license is to be installed prompts an installer to select a product type and version and the desired features, etc. (e.g., one for a single-user system or multiple connections for a network environment). The version or product name, serial number, and the selected number of connections is displayed for verification. The product type, serial number, and number of connections are communicated by the installer to a fulfillment agent.
2 ~ g 7 01 ~ PCT/US94/07504 A fulfillment agent accesses the enabler key database using the product type, serial number, and number of connections information. Once the enabler key associated with this combination of information is extracted from the enabler key database by the fulfillment agent, and communicated to the installer.
The installer inputs the enabler key information to the enabling process.
The enabling process performs a checksum using the enabler key to verify that the correct enabler key was given. The checksum further verifies that the correct enabler key values were entered by the installer in the correct order.
Upon verification, the license is enabled using the offsets contained in the enabler key to decrypt the license. The enabled license can be copied to some media for later installation or be installed.
Figure 4 illustrates a licenseEnable process flow. At block 402, license selection information is obtained. At block 404, an enabler key obtained from a fulfillment agent is obtained. At block 406, a checksum is generated using license information. At decision block 408 (i.e., "checksums match?"), when the checksum in the enabler key does not match the newly-calculated checksum, processing continues at decision block 4I2. At decision block 412 (i.e., "try again?"), when another attempt to validate an invalidated license is warranted (e.g., when a license was invalidated on the first attempt and multiple attempts are desired) processing continues at block 404 to prompt for the reentry of the enabler key. When another attempt to validate the license is not warranted, processing ends at block 4I4.
WO 95/27354 ~ PCT/US94/07504 When, at decision block 408, the checksums match, processing continues at block 410 to enable the selected license using the random number value contained in the enabler key. Processing ends at block 414.
Thus, the present invention provides secure fulfillment, i.e., it provides the ability to distribute product and license packages such that a product and associated license are disabled from unauthorized use. Multiple packages can be distributed on a single distribution media thereby reducing the cost of distribution. The ability to distribute multiple packages on a single distribution media further provides the ability to utilize distribution media with increased capacity (i.e., CD-ROM). Selection of a product and corresponding license can be delayed until immediately prior to installation on an enduser's computer system. One or more products and associated licenses can be selected and an enabler key obtained. Enablement of a license and I5 product requires the use of a process (i.e., an enablement proress) executing on a computer system. The enablement process uses the enabler key to enable the license.
Thus, a method and apparatus for electronic license distribution has been provided.
Disabled licenses are shipped to the extraction agent. Using its extractor's password, an extractor can decrypt the extractor encryption from the license. The result of this process is a disabled (i.e., doubly-encrypted) license.
Disabled licenses are packaged with the products) and licenses) and shipped to an installer (i.e., enduser or other installer). An installer can select the product and licensing combination(s). Using this selection, the installer obtains the enabler key from the fulfillment agent. The installer uses the enabler key to enable the desired product licensing selection. The product and license can then be installed on an enduser's system. Alternatively, the lirense may distributed without disablement when it is not necessary to do so. A license (containing enabling information) may be distributed without disabling it when all licenses can be communicated by a fulfilling entity, e.g., by a voice operator. Thus, for example, the license may be distributed without disablement when it is not too large for a voice operator to fulfill (communicate) it in its entirety at once in a short time and in a manner that is simple for the enduser to receive and understand.
The present invention can be used to provide the ability to distribute one or more product and licensing combinations on a single distribution media (e.g., Compact Disc-Read Only Memory, "CD-ROM"). Figure 7 is a diagram illustrating the licensing scheme of the present invention that provides flexible distribution. The diagram illustrates software (i.e., WO 95!27354 PCT/US94/07504 _g_ executable) 620 and license 720. The valuable, complete license 720 may comprise incomplete license 710 that has no value. An enable key 712 that has no value may be procured electronically or by voice operator. Because licenses are disabled and cannot be enabled with an enabler key, the products supplied on a CD-ROM are protectable. A product becomes operable only when a enabler key is obtained from a fulfillment entity. Thus, the present invention provides the ability to reduce the costs of distribution by allowing multiple product distribution with a single distribution.
Another application for the present invention involves the distribution of demonstration versions of a product. Before, a demonstration distribution contained only a demonstration version of a product. Using the present invention, a demonstration distribution may contain both demonstration and production versions of products. Initially, a demonstration version is enabled, and a production version is disabled. After assessing the product using the demonstration version, an enduser may purchase the production version, obtain an enabler key, and (using an enablement routine) enable the production version. Thus, only one distribution was needed.
Figure 1 illustrates a LicenseDistribution overview flow. At block 102, disableLicenseSets is invoked to disable one or more sets of electronic licenses.
At block 104, license set extraction files are provided to an extractor. At block 106, setsToDistributionMedia is invoked to receive, extract and transfer electronic licenses to a final distribution media (e.g., CD-ROM). Further, a decryption process is performed using an extractor's password. At block 108, licenseEnablement is invoked to decrypt the disabled portions of the license.
At block 110, the enabled license is copied to a secure directory of a computer system on which the license is to be used. At block 112, processing ends.
~ 180 ~,~
LICENSE DISABLEMENT
Once license sets (i.e., one or more licenses) are created, the present S invention provides the ability to disable the licenses to further protect the licenses. In the present invention, disablement includes the generation of a random number using a random number generator. In the preferred embodiment, a random number generator provided in Borland Inc.'s Application Program Interface (API) library is used. However, any random number generator may be used with the present invention without departing from the scope of the present invention. The random number generated identifies an offset within an encrypted portion of a license. For example, a license having 320 positions comprises I60 positions for the clear text portion and the remaining 160 positions for the encrypted portion.
The encrypted value found at the offset within the encrypted area is encrypted a second time using the random number as the encryption key. The random number is appended to an Enabler key and added to a checksum. This process can be repeated multiple times. For example, if this double-encryption technique is performed ten times, ten locations within tile encrypted portion of a license can be doubly-encrypted.
After a license is disabled using this double-encryption technique, the encrypted portion of the license is again encrypted using an extractor's (e.g., reseller's) password and RSA's Bsafe *RC2* secret key encryption algorithm.
This can be used to protect the licenses while in transit to the extracting agent.
* trademark r 29 870 4 The final checksum comprised of information from the lirense and the random numbers generated during disablement is broken up into byte-size pieces and stored at multiple locations in the enabler key. The checksum can be broken down to any number of byte-size pieces and stored in the same number of locations within the enabler. Further, the enabler key and lirense information (e.g., serial number, number of connections, major product version, and minor product version) are stored as a record in an enabler key database.
An enabler key database comprising enabler keys is supplied to a fulfillment agent. Given licensing information, a fulfillment agent can supply an enabler key to an enduser or installation agent for use in the enablement process; the licensing information may comprise product numbers and the number of connections, for example. That is, a fulfillment agent can access the enabler key database using the licensing information supplied by the installation agent or enduser and extract the enabler key associated with the desired license. Once the fulfillment agent supplies the enabler key, the customer can execute an enablement procedure on the installation computer system and, using the enabler key, enable the desired lirense.
The double-encryption process can be performed on each license in a license set. A license set can contain multiple licenses, each licensing some number of rnnnections for a given product or version of a product. As each lirense in a set is disabled using the above technique, it can be put in a buffer.
Once all of the licenses in the set have been processed, the license set can be appended to a license inventory extraction database file. Each inventory extraction database file is given a unique name that identifies the different versions of license sets contained in a particular database file. License inventory extraction database files are distributed to an extractor (i.e., reseller or manufacturer).
Statistical information associated with the license set creation session can be appended to a sessions database. Such information includes a session identifier, a starting serial number, a number of lirenses created, a last serial number, a manufacturer identifier, license flags, and an extractor password.
Any value may be used to identify a session. For example, the session identifier can be initialized to a time that a session is begun. This value can be represented by the total number of seconds since 1980. Any other value can be used to identify a session.
The first serial number used on the first license set is retained in the starting serial number field. The number of licenses created indicates the total number of license sets created in the session, or batch. The last serial number used in the last set of licenses created in the session is retained in the last serial number field. A manufacturer identifier value indicates the identification number of the extracting agent for whom the license sets were created.
License flags indicate the lirense flags that were set in each license in set.
License flags can be used to provide licensing information such as type of license and required, associated licenses. The password used with the RC2 encryption on the encrypted area of the server connection license is stored in the extractor password field.
Figure 2 illustrates a disableLicenseSets process flow. In block 202, an electronic license, i.e., a server connection license, is obtained from storage. In block 204, a checksum is generated using a serial number, number of 2~ X701 ~
connections, i.e., network connections, and product version number values.
In block 206, a random number is generated, which is added to the checksum generated in block 204.
The checksum includes of the number of connections allowed by a license, the serial number of the license, and the major and minor product version numbers. For example, a version number "3.01" comprises a major product number "3" and a minor product number "Ol". The serial number is the same for every license in each license set within each product or product version. The number of connections can vary based on the product, version of the product, and/or the manufacturer's licensing policy. Further, a series of random numbers are included in the final checksum value for a license.
At blocks 208 and 210, a value in the encryption area of the electronic license and at the position indicated by the random number is encrypted. At decision block 212 (i.e., "locations encrypted?"), when all locations (e.g., ten positions) have not been disabled, processing continues at block 206 to disable the remaining positions. When all locations are disabled, processing continues at block 214.
At block 214, the checksum is split into byte-size pieces, and each byte is placed at different locations within an enabler key. An enabler key is used to enable a disabled license. An enabler key includes the serial number, number of connections, and major and minor product version numbers associated with a license. Further, the enabler key includes the randomly generated numbers) that identify the disabled locations within the encrypted portion of the license. At block 216, the enabler key, serial number, number of WO 95/27354 i ~ PCT/US94/07504 connections and product version number (i.e., major and minor version numbers) are retained in memory.
At block 218, the doubly-encrypted portion of the license is encrypted using an extractor's password. At block 220, the license is written to a license set area in memory (e.g., Random Access Memory, RAM). At decision block 222 (i.e., "more stratifications in set?"), when there are additional licenses in the license set (e.g., licenses allowing a different number of connections), processing continues at block 202 to get the next lirense in the license set.
When all of the licenses in a set have been processed, processing continues at block 224 to copy the license set stored in memory to an extraction database file.
At block 226, the enabler keys) associated with the licenses) in the license set are written to an enabler key database file. At block 228, information related to this session can be written to a sessions database. At decision block 230 (i.e., "more stratifications in set?"), when additional lirense sets are to be created, processing continues at block 202 to get a next license. When additional license sets are not created, processing ends at block 232.
DISTRIBUTION
Inventory extraction database files are transferred to an extracting agent.
The extracting agent can incorporate the inventory extraction database files to extracting agent's inventory extraction database. Licenses can be extracted from the extracting agent's inventory extraction database to a final distribution media for transmittal to a purchaser. The number of different types or versions of license sets and the format (e.g., multiple types of licenses on the f...... - 21870 1 ~
same distribution media) used in placing them on the final distribution media (e.g., floppy diskette and CD-ROM).
During extraction, a license is read into memory. The lirense's encrypted area is decrypted using Bsafe's *RC2* secret key decryption algorithm.
The license is stored in a file on the distribution media. The name of the file indicates the number of connections allowed by the lirense. Subdirectories can further be used to segregate multiple types or version of a prodL~~a's licenses placed on the same distribution media. The subdirectory ssa~es can be used to IO represent license set's types and versions. A license set type can reflect a product or a product version.
Disabled licenses can be shipped to an extraction agent (e.g., reseller or manufacturer). An extractor can extract and transfer license sets to a final I5 distribution media for shipment (e.g., to an enduser or installation agent).
Figure 3 illustrates a setsToDistributionMedia proress flow. At block 302, the disabled licenses shipped to an extraction agent are added to the extraction agent's license extraction database file. At block 304, a final distribution media format can be determined based on the extraction agent's identification value 20 in a license in a license set.
At decision block 306 (i.e., "multiple versions or types of server connection licenses on same media?"), when multiple versions or types of licenses are included on the same distribution media, processing continues at 25 block 308 to create subdirectories to store the multiple licenses.
Processing continues at block 3I0. When multiple versions or types of licenses are not included, processing continues at block 310.
* trademark i WO 95/27354 ~ PCT/US94107504 At block 310, licenses are extracted from the license extraction database, and the extractor's encryption is stripped off each license in a set using a decryption algorithm and the extractor's password. At block 312, the license set is written to the final distribution media. At decision block 314 (i.e., "more sets?"), when additional license sets are intended on the same distribution media, processing continues at decision block 306 to process the remaining license sets. When additional license sets are not intended on the same distribution media, processing ends at block 316.
LICENSE ENABLEMENT
A licensing final distribution media is packaged with the products) for which it is associated and shipped to an installer. The licenses contained in the final distribution media must be enabled and installed to license a product for use. Thus, an enabling procedure must be executed to enable a license. The enabling procedure requires the enabler key to decrypt the encrypted portion of the license. The enabler key is available to the installer from a fulfillment agent upon payment of the purchase price of a product.
An enablement process executing on the system which the license is to be installed prompts an installer to select a product type and version and the desired features, etc. (e.g., one for a single-user system or multiple connections for a network environment). The version or product name, serial number, and the selected number of connections is displayed for verification. The product type, serial number, and number of connections are communicated by the installer to a fulfillment agent.
2 ~ g 7 01 ~ PCT/US94/07504 A fulfillment agent accesses the enabler key database using the product type, serial number, and number of connections information. Once the enabler key associated with this combination of information is extracted from the enabler key database by the fulfillment agent, and communicated to the installer.
The installer inputs the enabler key information to the enabling process.
The enabling process performs a checksum using the enabler key to verify that the correct enabler key was given. The checksum further verifies that the correct enabler key values were entered by the installer in the correct order.
Upon verification, the license is enabled using the offsets contained in the enabler key to decrypt the license. The enabled license can be copied to some media for later installation or be installed.
Figure 4 illustrates a licenseEnable process flow. At block 402, license selection information is obtained. At block 404, an enabler key obtained from a fulfillment agent is obtained. At block 406, a checksum is generated using license information. At decision block 408 (i.e., "checksums match?"), when the checksum in the enabler key does not match the newly-calculated checksum, processing continues at decision block 4I2. At decision block 412 (i.e., "try again?"), when another attempt to validate an invalidated license is warranted (e.g., when a license was invalidated on the first attempt and multiple attempts are desired) processing continues at block 404 to prompt for the reentry of the enabler key. When another attempt to validate the license is not warranted, processing ends at block 4I4.
WO 95/27354 ~ PCT/US94/07504 When, at decision block 408, the checksums match, processing continues at block 410 to enable the selected license using the random number value contained in the enabler key. Processing ends at block 414.
Thus, the present invention provides secure fulfillment, i.e., it provides the ability to distribute product and license packages such that a product and associated license are disabled from unauthorized use. Multiple packages can be distributed on a single distribution media thereby reducing the cost of distribution. The ability to distribute multiple packages on a single distribution media further provides the ability to utilize distribution media with increased capacity (i.e., CD-ROM). Selection of a product and corresponding license can be delayed until immediately prior to installation on an enduser's computer system. One or more products and associated licenses can be selected and an enabler key obtained. Enablement of a license and I5 product requires the use of a process (i.e., an enablement proress) executing on a computer system. The enablement process uses the enabler key to enable the license.
Thus, a method and apparatus for electronic license distribution has been provided.
Claims (50)
1. A method of electronic license distribution comprising the steps of creating an electronic license independent of creation of a product to which said electronic license is associated;
distributing said electronic license to a user of said product; and enabling said electronic license, wherein said step of enabling said license leaves said product unchanged.
distributing said electronic license to a user of said product; and enabling said electronic license, wherein said step of enabling said license leaves said product unchanged.
2. The method of claim 1 further including the step of disabling said electronic license.
3. The method of claim 2 wherein said disablement step comprises the steps of generating in a computer system a random number, said random number identifying a position within an encrypted portion of said electronic license;
encrypting a value at said position within said encrypted portion using said random number as an encryption key; and storing said random number in an enablement key.
encrypting a value at said position within said encrypted portion using said random number as an encryption key; and storing said random number in an enablement key.
4. The method of claim 1 wherein said enablement step comprises the steps of extracting, by an enablement process executing in a computer system an offset, said offset representing a location of a value within said electronic license;
decrypting said value at said offset using said offset as a decryption key.
decrypting said value at said offset using said offset as a decryption key.
5. A method of electronic license distribution comprising the steps of transferring electronic copies of a plurality of products to a distribution medium;
creating a plurality of electronic license sets, each of said electronic license sets associated with one of said plurality of products, at least one of said electronic license sets comprised of a plurality of electronic licenses;
disabling at least one of said plurality of electronic licenses in said plurality of electronic license sets; and transferring electronic copies of said plurality of electronic license sets to said distribution medium.
creating a plurality of electronic license sets, each of said electronic license sets associated with one of said plurality of products, at least one of said electronic license sets comprised of a plurality of electronic licenses;
disabling at least one of said plurality of electronic licenses in said plurality of electronic license sets; and transferring electronic copies of said plurality of electronic license sets to said distribution medium.
6. The method of claim 5 further including the steps of:
distributing said distribution medium to an enduser;
selecting by said enduser one of said plurality of products;
selecting by said enduser one of said plurality of electronic licenses associated with said selected product;
obtaining by said enduser an enabler key from a fulfillment agent based on said one of said plurality of products and said one of said plurality of electronic licenses; and executing in a computer system an enablement process to enable said one of said plurality of electronic licenses using said enabler key.
distributing said distribution medium to an enduser;
selecting by said enduser one of said plurality of products;
selecting by said enduser one of said plurality of electronic licenses associated with said selected product;
obtaining by said enduser an enabler key from a fulfillment agent based on said one of said plurality of products and said one of said plurality of electronic licenses; and executing in a computer system an enablement process to enable said one of said plurality of electronic licenses using said enabler key.
7. The method of claim 6 further including the step of installing said one of said plurality of electronic licenses in said computer system.
8. The method of claim 6 wherein said enablement process further comprises the steps of:
extracting, by said enablement process executing in a computer system, an offset, said offset representing a location of an encrypted value within said one of said plurality of electronic licenses; and decrypting said value at said offset using said offset as a decryption key.
extracting, by said enablement process executing in a computer system, an offset, said offset representing a location of an encrypted value within said one of said plurality of electronic licenses; and decrypting said value at said offset using said offset as a decryption key.
9. The method of claim 1, wherein said enabling step enables only selected features of said product.
10. The method of claim 9, wherein at least one of said selected features includes enhanced connectivity.
11. The method of claim 9, wherein at least one of said products includes a demonstration version and a complete version, and wherein said step of enabling enables said complete version.
12. The method of claim 9, wherein said selected features of said product are configured to be inoperable unless a corresponding license is enabled, further comprising the step of:
storing at least one license corresponding to at least one feature of said product on a license medium;
wherein said step of disabling at least one of said features includes disabling said at least one license on said license medium based on an enabler key; and wherein said step of enabling said electronic license includes enabling said license corresponding to said at least one feature using said enabler key.
storing at least one license corresponding to at least one feature of said product on a license medium;
wherein said step of disabling at least one of said features includes disabling said at least one license on said license medium based on an enabler key; and wherein said step of enabling said electronic license includes enabling said license corresponding to said at least one feature using said enabler key.
13. The method of claim 12, wherein said at least one license includes:
a clear text portion; and a digest portion including a digested version of said clear text portion.
a clear text portion; and a digest portion including a digested version of said clear text portion.
14. The method of claim 13, wherein said step of disabling at least one of said features incluldes encrypting at least one part of said digest portion.
15. The method of claim 14, further comprising the; steps of:
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
16. The method of claim 13, wherein said digest portion further comprises a checksum value.
17. The method of claim 12, further comprising the step of encrypting said at least one license.
18. The method of claim 17, wherein said step of encrypting said at least one license includes the step of encrypting said license according to a value assigned to a first entity designated to receive said license medium.
19. The method of claim 18, further comprising the steps of:
providing said license medium and said program to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said program includes receiving said enabler key from said second entity.
providing said license medium and said program to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said program includes receiving said enabler key from said second entity.
20. The method of claim 5, wherein each of said licenses corresponds to an individual feature of one of said products, and wherein said corresponding license may be individually enabled only by using an enabler key corresponding to said license, and further comprising the steps of:
providing said medium to an end user;
selecting at least one feature of said product to be enabled; and enabling said at least one feature of said product using said corresponding enabler key.
providing said medium to an end user;
selecting at least one feature of said product to be enabled; and enabling said at least one feature of said product using said corresponding enabler key.
21. The method of claim 20, wherein at least one of said features includes enhanced connectivity.
22. The method of claim 20, wherein at least one of said products includes a demonstration version and a complete version, and wherein said step of enabling said at least one feature includes enabling said complete version.
23. The method of claim 5, wherein said at least one license includes:
a clear text portion; and a digest portion including a digested version of said clear text portion.
a clear text portion; and a digest portion including a digested version of said clear text portion.
24. The method of claim 23, wherein said step of disabling at least one of said licenses includes encrypting at least one part of said digest portion.
25. The method of claim 24, further comprising the steps of:
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
26. The method of claim 23, wherein said digest portion further comprises a checksum value.
27. The method of claim 5, further comprising the step of encrypting said license according to a value assigned to a first entity designated to receive said license medium.
28. The method of claim 27, further comprising the steps of:
providing said license medium and product to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said product includes receiving said enabler key from said second entity.
providing said license medium and product to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said product includes receiving said enabler key from said second entity.
29. A method of distributing software, comprising the steps of:
storing a plurality of programs on a program medium, wherein at least one of said programs includes a plurality of operating features;
disabling at least one of said features using an enabler key;
providing said medium to an end user;
selecting at least one operating feature to be enabled; and enabling said selected operating feature using said corresponding enabler key.
storing a plurality of programs on a program medium, wherein at least one of said programs includes a plurality of operating features;
disabling at least one of said features using an enabler key;
providing said medium to an end user;
selecting at least one operating feature to be enabled; and enabling said selected operating feature using said corresponding enabler key.
30. The method of claim 29, wherein at least one of said features comprises enhanced connectivity.
31. The method of claim 29, wherein at least one of said programs includes a demonstration version and a complete version, and wherein said step of enabling said selected operating feature includes enabling said complete version.
32. The method of claim 29, wherein said features of said program are configured to be inoperable unless a corresponding license is enabled, further comprising the step of:
storing at least one license corresponding to at least one feature of said program on a license medium;
wherein said step of disabling at least one of said programs includes disabling said at least one license on said license medium based on said enabler key;
and wherein said step of enabling said selected feature includes enabling said license corresponding to said at least one feature using said enabler key.
storing at least one license corresponding to at least one feature of said program on a license medium;
wherein said step of disabling at least one of said programs includes disabling said at least one license on said license medium based on said enabler key;
and wherein said step of enabling said selected feature includes enabling said license corresponding to said at least one feature using said enabler key.
33. The method of claim 32, wherein said at least one license includes:
a clear text portion; and a digest portion including a digested version of said clear text portion.
a clear text portion; and a digest portion including a digested version of said clear text portion.
34. The method of claim 33, wherein said step of disabling at least one of said programs includes encrypting at least one part of said digest portion.
35. The method of claim 34, further comprising the steps of:
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
36. The method of claim 33, wherein said digest portion further comprises a checksum value.
37. The method of claim 32, further comprising the step of encrypting said at least one license.
38. The method of claim 37, wherein said step of encrypting said at least one license includes the step of encrypting said license according to a value assigned to a first entity designated to receive said license medium.
39. The method of claim 38, further comprising the steps of:
providing said license medium and program to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said program includes receiving said enabler key from said second entity.
providing said license medium and program to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said selected at least one feature of said program includes receiving said enabler key from said second entity.
40. A method of distributing software, comprising the steps of:
storing a plurality of programs on a program medium, wherein said programs are configured to operate only in conjunction with an enabled license;
storing at least one license configured to enable at least one of said programs on a license medium, wherein said license is independent of said programs;
disabling said at least one license;
installing at least one of said programs on a computer;
installing said at least one license on said computer; and enabling said at least one license, wherein said step of enabling said at least one license includes leaving said program intact.
storing a plurality of programs on a program medium, wherein said programs are configured to operate only in conjunction with an enabled license;
storing at least one license configured to enable at least one of said programs on a license medium, wherein said license is independent of said programs;
disabling said at least one license;
installing at least one of said programs on a computer;
installing said at least one license on said computer; and enabling said at least one license, wherein said step of enabling said at least one license includes leaving said program intact.
41. The method of claim 40, wherein said program medium and said license medium are the same medium.
42. The method of claim 40, wherein a feature of at least one of said plurality of programs is configured to be inoperable unless a corresponding license is enabled, wherein said step of storing at least one license includes storing at least one license corresponding to said at least one feature of said program on said license medium, and wherein said step of disabling said includes disabling said license corresponding to said feature.
43. The method of claim 42, wherein said feature comprises enhanced connectivity.
44. The method of claim 40, wherein said license includes:
a clear text portion; and a digest portion including a digested version of said clear text portion.
a clear text portion; and a digest portion including a digested version of said clear text portion.
45. The method of claim 44, wherein said step of disabling said license includes encrypting at least one part of said digest portion.
46. The method of claim 45, further comprising the steps of:
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
decrypting said encrypted part of said digest portion;
digesting said clear text portion; and comparing said decrypted digest portion with said digested clear text portion to determine the validity of said license.
47. The method of claim 44, wherein said digest portion further comprises a checksum value.
48. The method of claim 42, further comprising the step of encrypting said at least one license.
49. The method of claim 48, wherein said step of encrypting said at least one license includes said step of encrypting said license according to a value assigned to a first entity designated to receive said license medium.
50. The method of claim 49, further comprising the steps of:
providing said license medium and program medium to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said feature of said program includes receiving said enabler key from said second entity.
providing said license medium and program medium to said first entity;
providing said enabler key to a second entity, wherein said step of enabling said feature of said program includes receiving said enabler key from said second entity.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/223,093 US5553139A (en) | 1994-04-04 | 1994-04-04 | Method and apparatus for electronic license distribution |
US08/223,093 | 1994-04-04 | ||
PCT/US1994/007504 WO1995027354A1 (en) | 1994-04-04 | 1994-07-01 | Method and apparatus for electronic license distribution |
Publications (2)
Publication Number | Publication Date |
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CA2187014A1 CA2187014A1 (en) | 1995-10-12 |
CA2187014C true CA2187014C (en) | 1999-11-02 |
Family
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Family Applications (1)
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CA002187014A Expired - Lifetime CA2187014C (en) | 1994-04-04 | 1994-07-01 | Method and apparatus for electronic license distribution |
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US (2) | US5553139A (en) |
EP (1) | EP0754380B1 (en) |
AU (1) | AU7254794A (en) |
CA (1) | CA2187014C (en) |
DE (2) | DE69417268D1 (en) |
WO (1) | WO1995027354A1 (en) |
Families Citing this family (124)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134324A (en) * | 1991-07-31 | 2000-10-17 | Lsi Logic Corporation | Method and system for distributing a plurality of software products, and limiting access thereto |
US5809237A (en) * | 1993-11-24 | 1998-09-15 | Intel Corporation | Registration of computer-based conferencing system |
US5495411A (en) * | 1993-12-22 | 1996-02-27 | Ananda; Mohan | Secure software rental system using continuous asynchronous password verification |
JPH08263438A (en) * | 1994-11-23 | 1996-10-11 | Xerox Corp | Distribution and use control system of digital work and access control method to digital work |
DE69521977T2 (en) * | 1994-12-13 | 2002-04-04 | Ibm | Process and system for secure program distribution |
US5761499A (en) * | 1995-12-21 | 1998-06-02 | Novell, Inc. | Method for managing globally distributed software components |
US5758068A (en) * | 1995-09-19 | 1998-05-26 | International Business Machines Corporation | Method and apparatus for software license management |
KR970024712A (en) * | 1995-10-16 | 1997-05-30 | 이데이 노부유키 | Encryption method and encryption device and recording method and decryption method and decryption device and recording medium |
US5892825A (en) * | 1996-05-15 | 1999-04-06 | Hyperlock Technologies Inc | Method of secure server control of local media via a trigger through a network for instant local access of encrypted data on local media |
US5758069A (en) * | 1996-03-15 | 1998-05-26 | Novell, Inc. | Electronic licensing system |
US5901227A (en) * | 1996-06-20 | 1999-05-04 | Novell, Inc. | Method and apparatus for implementing partial and complete optional key escrow |
US8225089B2 (en) | 1996-12-04 | 2012-07-17 | Otomaku Properties Ltd., L.L.C. | Electronic transaction systems utilizing a PEAD and a private key |
US20050021477A1 (en) * | 1997-01-29 | 2005-01-27 | Ganapathy Krishnan | Method and system for securely incorporating electronic information into an online purchasing application |
US5923842A (en) * | 1997-03-06 | 1999-07-13 | Citrix Systems, Inc. | Method and apparatus for simultaneously providing anonymous user login for multiple users |
US6173403B1 (en) | 1997-04-30 | 2001-01-09 | Achates Reference Publishing, Inc. | Method and apparatus for distributing information products |
US5982889A (en) * | 1997-04-30 | 1999-11-09 | Demont; Jason Paul | Method and apparatus for distributing information products |
US6385723B1 (en) * | 1997-05-15 | 2002-05-07 | Mondex International Limited | Key transformation unit for an IC card |
US6453334B1 (en) | 1997-06-16 | 2002-09-17 | Streamtheory, Inc. | Method and apparatus to allow remotely located computer programs and/or data to be accessed on a local computer in a secure, time-limited manner, with persistent caching |
JP3623347B2 (en) * | 1997-09-11 | 2005-02-23 | 三菱電機株式会社 | Digital content distribution system device |
US6738907B1 (en) | 1998-01-20 | 2004-05-18 | Novell, Inc. | Maintaining a soft-token private key store in a distributed environment |
US6170014B1 (en) | 1998-03-25 | 2001-01-02 | Community Learning And Information Network | Computer architecture for managing courseware in a shared use operating environment |
JPH11328033A (en) * | 1998-05-20 | 1999-11-30 | Fujitsu Ltd | License transfer device |
US6219652B1 (en) | 1998-06-01 | 2001-04-17 | Novell, Inc. | Network license authentication |
US20040117644A1 (en) * | 1998-06-04 | 2004-06-17 | Z4 Technologies, Inc. | Method for reducing unauthorized use of software/digital content including self-activating/self-authenticating software/digital content |
US20040107368A1 (en) * | 1998-06-04 | 2004-06-03 | Z4 Technologies, Inc. | Method for digital rights management including self activating/self authentication software |
US20040225894A1 (en) * | 1998-06-04 | 2004-11-11 | Z4 Technologies, Inc. | Hardware based method for digital rights management including self activating/self authentication software |
US20040117664A1 (en) * | 1998-06-04 | 2004-06-17 | Z4 Technologies, Inc. | Apparatus for establishing a connectivity platform for digital rights management |
US6044471A (en) | 1998-06-04 | 2000-03-28 | Z4 Technologies, Inc. | Method and apparatus for securing software to reduce unauthorized use |
US6799277B2 (en) * | 1998-06-04 | 2004-09-28 | Z4 Technologies, Inc. | System and method for monitoring software |
US20040117631A1 (en) * | 1998-06-04 | 2004-06-17 | Z4 Technologies, Inc. | Method for digital rights management including user/publisher connectivity interface |
US6986063B2 (en) * | 1998-06-04 | 2006-01-10 | Z4 Technologies, Inc. | Method for monitoring software using encryption including digital signatures/certificates |
US20040117628A1 (en) * | 1998-06-04 | 2004-06-17 | Z4 Technologies, Inc. | Computer readable storage medium for enhancing license compliance of software/digital content including self-activating/self-authenticating software/digital content |
US20040117663A1 (en) * | 1998-06-04 | 2004-06-17 | Z4 Technologies, Inc. | Method for authentication of digital content used or accessed with secondary devices to reduce unauthorized use or distribution |
US6651094B1 (en) * | 1998-07-17 | 2003-11-18 | International Business Machines Corporation | Method and apparatus for creating a preload image for network installation |
WO2000019382A1 (en) | 1998-09-29 | 2000-04-06 | Stamps.Com, Inc. | On-line postage system |
JP4763866B2 (en) * | 1998-10-15 | 2011-08-31 | インターシア ソフトウェア エルエルシー | Method and apparatus for protecting digital data by double re-encryption |
US7257554B1 (en) | 1999-03-19 | 2007-08-14 | Hewlett-Packard Development Company, L.P. | Anonymous purchases while allowing verifiable identities for refunds returned along the paths taken to make the purchases |
US7136838B1 (en) * | 1999-03-27 | 2006-11-14 | Microsoft Corporation | Digital license and method for obtaining/providing a digital license |
US6973444B1 (en) * | 1999-03-27 | 2005-12-06 | Microsoft Corporation | Method for interdependently validating a digital content package and a corresponding digital license |
US7360252B1 (en) | 1999-04-30 | 2008-04-15 | Macrovision Corporation | Method and apparatus for secure distribution of software |
US6966002B1 (en) | 1999-04-30 | 2005-11-15 | Trymedia Systems, Inc. | Methods and apparatus for secure distribution of software |
US6453305B1 (en) * | 1999-05-21 | 2002-09-17 | Compaq Computer Corporation | Method and system for enforcing licenses on an open network |
US20050251686A1 (en) * | 1999-06-09 | 2005-11-10 | Andres Torrubia-Saez | Methods and apparatus for secure distribution of software |
JP2001034470A (en) * | 1999-07-22 | 2001-02-09 | Fujitsu Ltd | Server having management automating mechanism |
US7716348B1 (en) * | 1999-09-03 | 2010-05-11 | Safenet, Inc. | License management system and method with license balancing |
US6842896B1 (en) * | 1999-09-03 | 2005-01-11 | Rainbow Technologies, Inc. | System and method for selecting a server in a multiple server license management system |
US7310735B1 (en) * | 1999-10-01 | 2007-12-18 | International Business Machines Corporation | Method, system, and program for distributing software between computer systems |
JP3934941B2 (en) * | 1999-11-30 | 2007-06-20 | 三洋電機株式会社 | Recording device |
US6460140B1 (en) | 1999-12-30 | 2002-10-01 | Starnet Communications Corporation | System for controlling the use of licensed software |
AU2927601A (en) * | 2000-01-07 | 2001-07-24 | Swiftview, Inc. | Embedded license data file distribution and processing system |
US20070271191A1 (en) * | 2000-03-09 | 2007-11-22 | Andres Torrubia-Saez | Method and apparatus for secure distribution of software |
US6948168B1 (en) | 2000-03-30 | 2005-09-20 | International Business Machines Corporation | Licensed application installer |
US20020073033A1 (en) * | 2000-04-07 | 2002-06-13 | Sherr Scott Jeffrey | Online digital video signal transfer apparatus and method |
US20020154157A1 (en) * | 2000-04-07 | 2002-10-24 | Sherr Scott Jeffrey | Website system and process for selection and delivery of electronic information on a network |
JP2004514194A (en) | 2000-04-28 | 2004-05-13 | モルドフロウ コーポレイション | Networkable application software system and method |
JP2001337835A (en) * | 2000-05-25 | 2001-12-07 | Hitachi Ltd | Method for renewing program of control program built-in device and control program built-in device |
DE10032015A1 (en) * | 2000-07-01 | 2002-01-10 | Roche Diagnostics Gmbh | Test strip analysis unit for bodily fluid, employs temperature history correction system which will not drain batteries |
US7020773B1 (en) * | 2000-07-17 | 2006-03-28 | Citrix Systems, Inc. | Strong mutual authentication of devices |
US6986040B1 (en) | 2000-11-03 | 2006-01-10 | Citrix Systems, Inc. | System and method of exploiting the security of a secure communication channel to secure a non-secure communication channel |
US7062567B2 (en) | 2000-11-06 | 2006-06-13 | Endeavors Technology, Inc. | Intelligent network streaming and execution system for conventionally coded applications |
US8831995B2 (en) | 2000-11-06 | 2014-09-09 | Numecent Holdings, Inc. | Optimized server for streamed applications |
US20020087876A1 (en) * | 2000-12-28 | 2002-07-04 | Larose Gordon Edward | Adaptive software installation process supporting multiple layers of security-related attributes |
US20020094083A1 (en) * | 2001-01-12 | 2002-07-18 | Prabir Bhattacharya | Encryption scheme for limiting the maximum number of accesses to a digital file of predetermined content |
US20020120726A1 (en) * | 2001-02-23 | 2002-08-29 | Microsoft Corporation | Method and system for providing a software license via the telephone |
EP1243998B1 (en) * | 2001-03-21 | 2017-04-19 | Excalibur IP, LLC | A technique for license management and online software license enforcement |
US6993664B2 (en) * | 2001-03-27 | 2006-01-31 | Microsoft Corporation | Method and system for licensing a software product |
US20020141582A1 (en) * | 2001-03-28 | 2002-10-03 | Kocher Paul C. | Content security layer providing long-term renewable security |
US7987510B2 (en) * | 2001-03-28 | 2011-07-26 | Rovi Solutions Corporation | Self-protecting digital content |
JP4899248B2 (en) * | 2001-04-02 | 2012-03-21 | 富士通セミコンダクター株式会社 | Semiconductor integrated circuit |
US7100200B2 (en) * | 2001-06-13 | 2006-08-29 | Citrix Systems, Inc. | Method and apparatus for transmitting authentication credentials of a user across communication sessions |
US7562146B2 (en) | 2003-10-10 | 2009-07-14 | Citrix Systems, Inc. | Encapsulating protocol for session persistence and reliability |
US20050198379A1 (en) | 2001-06-13 | 2005-09-08 | Citrix Systems, Inc. | Automatically reconnecting a client across reliable and persistent communication sessions |
US7143409B2 (en) | 2001-06-29 | 2006-11-28 | International Business Machines Corporation | Automated entitlement verification for delivery of licensed software |
US20030033255A1 (en) * | 2001-08-13 | 2003-02-13 | Burton Margaret Jane | License repository and method |
US20030051135A1 (en) * | 2001-08-31 | 2003-03-13 | Michael Gill | Protecting data in a network attached storage device |
DE10147948B4 (en) * | 2001-09-28 | 2007-10-18 | Siemens Ag | Procedure for licensing software |
DE10200184A1 (en) * | 2002-01-04 | 2003-07-17 | Siemens Ag | Method for licensing software programs e.g. for office automation such as text processing, requires additional software program as licence manager |
US7661129B2 (en) * | 2002-02-26 | 2010-02-09 | Citrix Systems, Inc. | Secure traversal of network components |
US7984157B2 (en) | 2002-02-26 | 2011-07-19 | Citrix Systems, Inc. | Persistent and reliable session securely traversing network components using an encapsulating protocol |
US20040039916A1 (en) * | 2002-05-10 | 2004-02-26 | David Aldis | System and method for multi-tiered license management and distribution using networked clearinghouses |
EP1505528A4 (en) * | 2002-05-15 | 2006-12-06 | Matsushita Electric Ind Co Ltd | Content use management system |
GB2389928A (en) * | 2002-06-21 | 2003-12-24 | Spero Comm Ltd | Data stored in encrypted form on a data carrier may be accessed by a user when a remote server provides permission |
JP3864867B2 (en) * | 2002-07-23 | 2007-01-10 | ソニー株式会社 | Information processing apparatus, information processing method, and computer program |
US7644442B2 (en) * | 2003-01-31 | 2010-01-05 | Microsoft Corporation | Systems and methods for using machine attributes to deter software piracy in an enterprise environment |
JP2004234558A (en) * | 2003-01-31 | 2004-08-19 | Hitachi Ltd | Storage device controller and program |
JP2004234555A (en) * | 2003-01-31 | 2004-08-19 | Hitachi Ltd | Control method for storage system, storage system, and program |
US7356709B2 (en) * | 2003-01-31 | 2008-04-08 | Microsoft Corporation | Systems and methods for deterring software piracy in a volume license environment |
US8181265B2 (en) * | 2003-01-31 | 2012-05-15 | Microsoft Corporation | Secure machine counting |
JP4342804B2 (en) * | 2003-01-31 | 2009-10-14 | 株式会社日立製作所 | Storage system control method, storage system, and program |
US7370212B2 (en) | 2003-02-25 | 2008-05-06 | Microsoft Corporation | Issuing a publisher use license off-line in a digital rights management (DRM) system |
US7467100B2 (en) * | 2003-03-10 | 2008-12-16 | Fujitsu Limited | Personal shopping data service system using extended gaming machine memory module |
US7716474B2 (en) * | 2003-05-12 | 2010-05-11 | Byteblaze, Inc. | Anti-piracy software protection system and method |
US7895449B2 (en) * | 2003-06-16 | 2011-02-22 | Microsoft Corporation | System and method for securely delivering installation keys to a production facility |
US20040255292A1 (en) * | 2003-06-16 | 2004-12-16 | Microsoft Corporation | Delivering multiple installation images and computer-readable installation keys on installation media |
US8055910B2 (en) | 2003-07-07 | 2011-11-08 | Rovi Solutions Corporation | Reprogrammable security for controlling piracy and enabling interactive content |
US7213268B2 (en) * | 2003-07-25 | 2007-05-01 | Aviation Communication And Surveillance Systems, Llc | Method for controlling customer-implemented data updates |
US20050066324A1 (en) * | 2003-09-22 | 2005-03-24 | Microsoft Corporation | Method and system for distributing and installing software |
US7565650B2 (en) * | 2003-10-23 | 2009-07-21 | International Business Machines Corporation | Method, apparatus and computer program product for deploying software via post-load images |
US7725721B2 (en) * | 2004-11-18 | 2010-05-25 | Cisco Technology, Inc. | Method and system for transferring software and hardware feature licenses between devices |
US8126814B2 (en) * | 2004-11-18 | 2012-02-28 | Cisco Technology, Inc. | Method and system for installing software and hardware feature licenses on devices |
JP4236630B2 (en) * | 2004-11-30 | 2009-03-11 | 三洋電機株式会社 | Content data recording medium |
US20060247606A1 (en) * | 2005-03-09 | 2006-11-02 | Batch Richard M | System and method for controlling access to features of a medical instrument |
US8024523B2 (en) | 2007-11-07 | 2011-09-20 | Endeavors Technologies, Inc. | Opportunistic block transmission with time constraints |
US8438645B2 (en) * | 2005-04-27 | 2013-05-07 | Microsoft Corporation | Secure clock with grace periods |
KR100800295B1 (en) * | 2005-04-11 | 2008-02-04 | 한국전자통신연구원 | Computer-readable Recode Medium of License Date Structure and License Issuing Method |
US8725646B2 (en) | 2005-04-15 | 2014-05-13 | Microsoft Corporation | Output protection levels |
US20060265758A1 (en) | 2005-05-20 | 2006-11-23 | Microsoft Corporation | Extensible media rights |
US8494966B2 (en) | 2005-06-03 | 2013-07-23 | Adobe Systems Incorporated | Method and apparatus for facilitating the transfer of a software license between computer systems |
US8761400B2 (en) * | 2005-07-15 | 2014-06-24 | Microsoft Corporation | Hardware linked product key |
US20070206220A1 (en) * | 2006-03-02 | 2007-09-06 | Berg Brian C | Method and system for product registration |
US20070250711A1 (en) * | 2006-04-25 | 2007-10-25 | Phonified Llc | System and method for presenting and inputting information on a mobile device |
US7571307B2 (en) * | 2006-07-26 | 2009-08-04 | International Business Machines Corporation | Capacity upgrade on-demand for I/O adapters |
US8620817B2 (en) * | 2006-09-14 | 2013-12-31 | Flexera Software, Inc. | Method and system for creating license management in software applications |
JP2007220134A (en) * | 2007-03-30 | 2007-08-30 | Fujitsu Ltd | License transfer device, storage medium and license transfer method |
JP2007188530A (en) * | 2007-03-30 | 2007-07-26 | Fujitsu Ltd | License transfer device, storage medium, and medium reading method |
US9336369B2 (en) * | 2007-09-28 | 2016-05-10 | Abbyy Development Llc | Methods of licensing software programs and protecting them from unauthorized use |
US9129098B2 (en) | 2007-09-28 | 2015-09-08 | Abbyy Development Llc | Methods of protecting software programs from unauthorized use |
US8892738B2 (en) | 2007-11-07 | 2014-11-18 | Numecent Holdings, Inc. | Deriving component statistics for a stream enabled application |
US8607226B2 (en) * | 2008-01-22 | 2013-12-10 | International Business Machines Corporation | Solution for locally staged electronic software distribution using secure removable media |
JP5121542B2 (en) * | 2008-04-09 | 2013-01-16 | キヤノン株式会社 | Application packaging device, its control method, and program |
US8977849B1 (en) * | 2009-09-02 | 2015-03-10 | Symantec Corporation | Systems and methods for creating a rights management system (RMS) with superior layers and subordinate layers |
CN105993043B (en) * | 2014-02-18 | 2019-08-16 | 日本电信电话株式会社 | Safety device, its method and computer-readable recording medium |
US10694352B2 (en) | 2015-10-28 | 2020-06-23 | Activision Publishing, Inc. | System and method of using physical objects to control software access |
US10861079B2 (en) | 2017-02-23 | 2020-12-08 | Activision Publishing, Inc. | Flexible online pre-ordering system for media |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3609697A (en) * | 1968-10-21 | 1971-09-28 | Ibm | Program security device |
US4870568A (en) * | 1986-06-25 | 1989-09-26 | Thinking Machines Corporation | Method for searching a database system including parallel processors |
US5047928A (en) * | 1986-10-24 | 1991-09-10 | Wiedemer John D | Billing system for computer software |
US5390297A (en) * | 1987-11-10 | 1995-02-14 | Auto-Trol Technology Corporation | System for controlling the number of concurrent copies of a program in a network based on the number of available licenses |
US4937863A (en) * | 1988-03-07 | 1990-06-26 | Digital Equipment Corporation | Software licensing management system |
US4924378A (en) * | 1988-06-13 | 1990-05-08 | Prime Computer, Inc. | License mangagement system and license storage key |
US5023907A (en) * | 1988-09-30 | 1991-06-11 | Apollo Computer, Inc. | Network license server |
US5201048A (en) * | 1988-12-01 | 1993-04-06 | Axxess Technologies, Inc. | High speed computer system for search and retrieval of data within text and record oriented files |
US4941175A (en) * | 1989-02-24 | 1990-07-10 | International Business Machines Corporation | Tamper-resistant method for authorizing access to data between a host and a predetermined number of attached workstations |
US5199066A (en) * | 1989-04-18 | 1993-03-30 | Special Effects Software, Inc. | Method and apparatus for protecting software |
US5138712A (en) * | 1989-10-02 | 1992-08-11 | Sun Microsystems, Inc. | Apparatus and method for licensing software on a network of computers |
US5187770A (en) * | 1989-11-21 | 1993-02-16 | Sumitomo Electric Industries, Ltd. | Photosetting resin composition and plastic clad optical fiber comprising the same |
US5103476A (en) * | 1990-11-07 | 1992-04-07 | Waite David P | Secure system for activating personal computer software at remote locations |
US5222134A (en) * | 1990-11-07 | 1993-06-22 | Tau Systems Corporation | Secure system for activating personal computer software at remote locations |
JP3270102B2 (en) * | 1991-03-11 | 2002-04-02 | ヒューレット・パッカード・カンパニー | Licensing method and system |
US5182770A (en) * | 1991-04-19 | 1993-01-26 | Geza Medveczky | System and apparatus for protecting computer software |
DE69228039T2 (en) * | 1991-05-08 | 1999-08-05 | Digital Equipment Corp | LICENSE MANAGEMENT SYSTEM |
US5260999A (en) * | 1991-06-28 | 1993-11-09 | Digital Equipment Corporation | Filters in license management system |
US5438508A (en) * | 1991-06-28 | 1995-08-01 | Digital Equipment Corporation | License document interchange format for license management system |
US5204897A (en) * | 1991-06-28 | 1993-04-20 | Digital Equipment Corporation | Management interface for license management system |
US5278980A (en) * | 1991-08-16 | 1994-01-11 | Xerox Corporation | Iterative technique for phrase query formation and an information retrieval system employing same |
US5265065A (en) * | 1991-10-08 | 1993-11-23 | West Publishing Company | Method and apparatus for information retrieval from a database by replacing domain specific stemmed phases in a natural language to create a search query |
JP2942837B2 (en) * | 1992-01-31 | 1999-08-30 | 株式会社セガ・エンタープライゼス | Security check method, game device, and information storage medium used for them |
US5291598A (en) * | 1992-04-07 | 1994-03-01 | Gregory Grundy | Method and system for decentralized manufacture of copy-controlled software |
ES2128393T3 (en) * | 1992-05-15 | 1999-05-16 | Addison M Fischer | METHOD AND APPARATUS FOR COMPUTER SYSTEMS WITH INFORMATION DATA STRUCTURES FOR AUTHORIZATION PROGRAMS. |
US5287408A (en) * | 1992-08-31 | 1994-02-15 | Autodesk, Inc. | Apparatus and method for serializing and validating copies of computer software |
WO1994007204A1 (en) * | 1992-09-21 | 1994-03-31 | Uniloc (Singapore) Private Limited | System for software registration |
US5319705A (en) * | 1992-10-21 | 1994-06-07 | International Business Machines Corporation | Method and system for multimedia access control enablement |
US5343526A (en) * | 1992-10-30 | 1994-08-30 | At&T Bell Laboratories | Method for establishing licensor changeable limits on software usage |
US5349642A (en) * | 1992-11-03 | 1994-09-20 | Novell, Inc. | Method and apparatus for authentication of client server communication |
US5341429A (en) * | 1992-12-04 | 1994-08-23 | Testdrive Corporation | Transformation of ephemeral material |
US5386369A (en) * | 1993-07-12 | 1995-01-31 | Globetrotter Software Inc. | License metering system for software applications |
US5343527A (en) * | 1993-10-27 | 1994-08-30 | International Business Machines Corporation | Hybrid encryption method and system for protecting reusable software components |
-
1994
- 1994-04-04 US US08/223,093 patent/US5553139A/en not_active Expired - Lifetime
- 1994-07-01 DE DE69417268A patent/DE69417268D1/en not_active Expired - Lifetime
- 1994-07-01 AU AU72547/94A patent/AU7254794A/en not_active Abandoned
- 1994-07-01 DE DE69417268T patent/DE69417268T4/en not_active Expired - Lifetime
- 1994-07-01 WO PCT/US1994/007504 patent/WO1995027354A1/en active IP Right Grant
- 1994-07-01 EP EP94922082A patent/EP0754380B1/en not_active Expired - Lifetime
- 1994-07-01 CA CA002187014A patent/CA2187014C/en not_active Expired - Lifetime
-
1996
- 1996-05-03 US US08/642,607 patent/US5903650A/en not_active Expired - Lifetime
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DE69417268T2 (en) | 1999-07-29 |
DE69417268D1 (en) | 1999-04-22 |
WO1995027354A1 (en) | 1995-10-12 |
EP0754380A1 (en) | 1997-01-22 |
EP0754380A4 (en) | 1997-11-19 |
AU7254794A (en) | 1995-10-23 |
DE69417268T4 (en) | 1999-11-04 |
US5903650A (en) | 1999-05-11 |
EP0754380B1 (en) | 1999-03-17 |
CA2187014A1 (en) | 1995-10-12 |
US5553139A (en) | 1996-09-03 |
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