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公开(公告)号：US5081677A
公开(公告)日：1992-01-14
申请号：US576562
申请日：1990-08-31
CPC分类号： G06F12/1408
摘要： A facility for making dynamic changes to a system master key without stopping the system, and without loss of integrity to ongoing cryptographic operations. A version number is generated and associated with the current master key. A dynamic change is made to the master key, resulting in the then current master key becoming the old master key, and a "new" current master key (with a new version number) being placed into operation. Subsequent cryptographic requests using a supplied key enciphered under the old master key are identified by means of a supplied version number associated with the supplied key. This identification triggers a reencipher operation, reenciphering the supplied key under the now current master key--after which the cryptographic operation proceeds. Unique patterns are generated to verify the contents of the master key registers, and to authorize normal use of the cryptographic facility, and issuers of key-change operations.
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公开(公告)号：US4924514A
公开(公告)日：1990-05-08
申请号：US398300
申请日：1989-08-24
申请人： Stephen M. Matyas , Dennis G. Abraham , Donald B. Johnson , Ramesh K. Karne , An V. Le , Rostislaw Prymak , Julian Thomas , John D. Wilkins , Phil C. Yeh , Ronald M. Smith
发明人： Stephen M. Matyas , Dennis G. Abraham , Donald B. Johnson , Ramesh K. Karne , An V. Le , Rostislaw Prymak , Julian Thomas , John D. Wilkins , Phil C. Yeh , Ronald M. Smith
CPC分类号： G06F9/30018 , G06F9/30007 , G06Q20/3829 , G06Q20/4012 , G07F7/1016 , H04L9/0822 , H04L9/088 , H04L9/0894 , H04L9/3226 , H04L9/3271 , H04L2209/56
摘要： 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.
摘要翻译： 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。
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3.发明申请CONVERT SIGNIFICAND OF DECIMAL FLOATING POINT DATA FROM PACKED DECIMAL FORMAT 有权从包装的十进制格式转换十进制浮点数据的重要意义公开(公告)号：US20080270506A1
公开(公告)日：2008-10-30
申请号：US11781650
申请日：2007-07-23
IPC分类号： G06F7/38
CPC分类号： G06F7/38 , G06F7/483 , G06F7/491 , G06F9/30014 , G06F9/30025 , G06F9/30036
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including one or more convert instructions.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。 对于组合和分解，可以使用一个或多个指令，包括一个或多个转换指令。
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4.发明申请公开(公告)号：US20080270498A1
公开(公告)日：2008-10-30
申请号：US11781574
申请日：2007-07-23
IPC分类号： G06F7/00
CPC分类号： G06F7/38 , G06F7/483 , G06F7/491 , G06F9/30014 , G06F9/30025 , G06F9/30036
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including one or more convert instructions.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。 对于组合和分解，可以使用一个或多个指令，包括一个或多个转换指令。
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5.发明申请CONVERT SIGNIFICAND OF DECIMAL FLOATING POINT DATA TO/FROM PACKED DECIMAL FORMAT 有权十进制浮点数据转换到包装十进制格式的重要意义公开(公告)号：US20080270497A1
公开(公告)日：2008-10-30
申请号：US11740721
申请日：2007-04-26
CPC分类号： G06F7/38 , G06F7/483 , G06F7/491 , G06F9/30014 , G06F9/30025 , G06F9/30036
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including one or more convert instructions.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。 对于组合和分解，可以使用一个或多个指令，包括一个或多个转换指令。
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公开(公告)号：US20080270496A1
公开(公告)日：2008-10-30
申请号：US11740711
申请日：2007-04-26
CPC分类号： G06F9/30025 , G06F7/491 , G06F9/30036 , G06F2207/4911 , H03M7/24
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。
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公开(公告)号：US20080270507A1
公开(公告)日：2008-10-30
申请号：US11840359
申请日：2007-08-17
IPC分类号： G06F7/42
CPC分类号： G06F9/30025 , G06F7/491 , G06F9/30036 , G06F2207/4911 , H03M7/24
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。
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公开(公告)号：US20080270495A1
公开(公告)日：2008-10-30
申请号：US11740683
申请日：2007-04-26
CPC分类号： G06F7/491 , G06F9/30014 , G06F9/30025 , G06F9/30036 , G06F2207/4911
摘要： A decimal floating point finite number in a decimal floating point format is composed from the number in a different format. A decimal floating point format includes fields to hold information relating to the sign, exponent and significand of the decimal floating point finite number. Other decimal floating point data, including infinities and NaNs (not a number), are also composed. Decimal floating point data are also decomposed from the decimal floating point format to a different format. For composition and decomposition, one or more instructions may be employed, including an insert biased exponent or extract biased exponent instruction.
摘要翻译： 十进制浮点格式的十进制浮点有限数字由不同格式的数字组成。 十进制浮点格式包括用于保存与十进制浮点有限数字的符号，指数和有效数相关的信息的字段。 其他十进制浮点数据也包括无限和无数（不是数字）。 十进制浮点数据也从十进制浮点格式分解成不同的格式。 对于组合和分解，可以使用一个或多个指令，包括插入偏移指数或提取偏移指数指令。
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9.发明申请公开(公告)号：US20080270775A1
公开(公告)日：2008-10-30
申请号：US11740185
申请日：2007-04-25
申请人： Shawn D. Lundvall , Ronald M. Smith , Phil C. Yeh
发明人： Shawn D. Lundvall , Ronald M. Smith , Phil C. Yeh
IPC分类号： G06F9/00
CPC分类号： G06F9/3865 , G06F9/30003 , G06F9/30094 , G06F9/45504
摘要： Exception handling is simulated. An exception simulator is employed to simulate exceptions generated from routines simulating operations. The exception simulator provides an indication of the exception and invokes an interruption, when appropriate. The exception simulator includes an instruction invoked to handle the exception and any interruption.
摘要翻译： 模拟异常处理。 使用异常模拟器来模拟从仿真操作的例程产生的异常。 异常模拟器提供异常的指示，并在适当时调用中断。 异常模拟器包括调用以处理异常和任何中断的指令。
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10.发明申请DETECTION OF POTENTIAL NEED TO USE A LARGER DATA FORMAT IN PERFORMING FLOATING POINT OPERATIONS 有权检测潜在需要在执行浮动点操作时使用更大数据格式公开(公告)号：US20080270508A1
公开(公告)日：2008-10-30
申请号：US11740165
申请日：2007-04-25
申请人： Shawn D. Lundvall , Ronald M. Smith , Phil C. Yeh
发明人： Shawn D. Lundvall , Ronald M. Smith , Phil C. Yeh
CPC分类号： G06F9/30036 , G06F7/491 , G06F9/30003 , G06F9/30014 , G06F9/30105 , G06F9/3861 , G06F9/45504 , G06F2207/4911
摘要： Detection of whether a result of a floating point operation is safe. Characteristics of the result are examined to determine whether the result is safe or potentially unsafe, as defined by the user. An instruction is provided to facilitate detection of safe or potentially unsafe results.
摘要翻译： 检测浮点运算的结果是否安全。 检查结果的特征以确定结果是安全的还是潜在的不安全的，如用户定义的。 提供了一个指导，以便于检测安全或潜在不安全的结果。
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