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    • 3. 发明授权
    • Personal identification number processing using control vectors
    • 使用控制向量进行个人识别号码处理
    • US4924514A
    • 1990-05-08
    • US398300
    • 1989-08-24
    • Stephen M. MatyasDennis G. AbrahamDonald B. JohnsonRamesh K. KarneAn V. LeRostislaw PrymakJulian ThomasJohn D. WilkinsPhil C. YehRonald M. Smith
    • Stephen M. MatyasDennis G. AbrahamDonald B. JohnsonRamesh K. KarneAn V. LeRostislaw PrymakJulian ThomasJohn D. WilkinsPhil C. YehRonald M. Smith
    • G06F9/30G07F7/10H04L9/32
    • G06F9/30018G06F9/30007G06Q20/3829G06Q20/4012G07F7/1016H04L9/0822H04L9/088H04L9/0894H04L9/3226H04L9/3271H04L2209/56
    • Cryptographic PIN processing is achieved in an improved manner by associating control vectors with the PIN generating (verification) keys and PIN encrypting keys which provide authorization for the uses of the keys intended by the originator of the keys. The originator may be the local cryptographic facility (CF) and a utility program under the control of a security administrator, or the originator may be another network node which uses the key management methods described in the above-referenced copending patent applications to distribute said keys.Among the uses specified by the control vector are limitations on the authority to use the associated key with certain PIN processing instructions, such as PIN generation, verification, translation and PIN block creation. Furthermore, the control vector may limit the authority of certain instructions to process clear PIN inputs (such as in PIN verification). The control vector may contain information identifying and, possibly restricting, PIN processing to a particular PIN format or particular processing algorithm.The control vector implementation provides a flexible method for coupling format, usage, and processing authorization to keys. The system administrator can exercise flexibility in changing the implementation of his security policy by selecting appropriate control vectors in accordance with the invention. Furthermore, a method is provided for the security administrator to restrict certain PIN format translations.
    • 通过将控制向量与PIN生成(验证)密钥和PIN加密密钥相关联来实现密码PIN处理,该密码提供对使用密钥发起者所期望的密钥的授权。 发起者可以是本地加密设施(CF)和在安全管理员的控制下的实用程序,或者发起者可以是使用上述参考的未决专利申请中描述的密钥管理方法的另一个网络节点来分发所述密钥 。 由控制向量指定的用途之一是对使用相关密钥与某些PIN处理指令(例如PIN生成,验证,翻译和PIN块创建)的权限的限制。 此外,控制向量可以限制某些指令的权限来处理明确的PIN输入(例如在PIN验证中)。 控制向量可以包含识别并且可能限制对特定PIN格式或特定处理算法的PIN处理的信息。 控制向量实现提供了一种用于将格式,使用和处理权限耦合到密钥的灵活方法。 系统管理员可以通过根据本发明选择适当的控制向量来灵活地改变其安全策略的实现。 此外,提供了一种用于安全管理员限制某些PIN格式转换的方法。