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1. 发明申请

WO1998027686A1 REMOTE KEYLESS ENTRY ENCRYPTION ALGORITHM 审中-公开
标题翻译：远程无键入侵加密算法
公开(公告)号：WO1998027686A1
公开(公告)日：1998-06-25
申请号：PCT/US1997020248
申请日：1997-11-10
申请人： UT AUTOMOTIVE DEARBORN, INC.
发明人： UT AUTOMOTIVE DEARBORN, INC. , FELDMAN, Andrea, M. , SETTLES, Steven
IPC分类号： H04L09/18
CPC分类号： H04L9/065 , H04L2209/046 , H04L2209/26 , H04L2209/805 , H04L2209/84
摘要： The present invention teaches a method and system of encrypting a set of data having a test bit. The method comprises the step of generating a first and a second data string from the set of data. Once generated, the test bit is tested, and should it comprise a first value, the first data string is shifted in a first direction to transfer a carry over bit from a carry over register into the first data string while transferring a first bit of the first data string to said carry over register. This shifting step is followed by the step of shifting the second data string in a second direction to transfer a first bit of the second data string to the carry over register while transferring the carry over bit from the carry over register into the second data string. However, if the test bit comprises a second value, a first logic operation is executed on the first data string with a first number, and a second logic operation is executed on the second data string with a second number. Thereafter, the first data string is shifted in the second direction such that said carry over bit from said carry over register is transferred onto the first data string while the first bit of the first data string is transferred to the carry over register. Subsequently, the second data string is shifted in the first direction such that the carry over bit from the carry over register is transferred onto the second data string while the first bit of the second data string is transferred to the carry over register.
摘要翻译：本发明教导了加密具有测试位的一组数据的方法和系统。该方法包括从该组数据生成第一和第二数据串的步骤。一旦产生，测试比特被测试，并且如果它包括第一值，则第一数据串在第一方向上移位，以将进位比特从寄存器传送到第一数据串，同时传送第第一个数据串到所述进位寄存器。该移位步骤之后是将第二数据串沿第二方向移位的步骤，以将第二数据串的第一位传送到进位寄存器，同时将进位位从进位寄存器传送到第二数据串。然而，如果测试位包括第二值，则对具有第一数字的第一数据串执行第一逻辑运算，并且对第二数据串执行第二逻辑运算。此后，第一数据串在第二方向上移位，使得来自所述进位寄存器的所述进位转移到第一数据串上，同时将第一数据串的第一位传送到进位寄存器。随后，第二数据串在第一方向上移位，使得来自进位寄存器的进位位被传送到第二数据串上，而第二数据串的第一位被传送到进位寄存器。

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