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 Title: |
US5649014:
Pseudorandom composition-based cryptographic authentication process
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Koopman, Jr., Philip J.; Hebron, CT
Finn, Alan M.; Amston, CT
LaBarre, Robert E.; Willington, CT
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| Assignee: |
United Technologies Automotive, Inc., Dearborn, MI
other patents from UNITED TECHNOLOGIES AUTOMOTIVE, INC. (597540) (approx. 411)
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| Published / Filed: |
1997-07-15
/ 1995-10-02
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| Application Number: |
US1995000537487
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| IPC Code: |
Advanced:
H04L 9/18;
H04L 9/32;
Core:
more...
IPC-7:
H04K 1/00;
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| ECLA Code: |
H04L9/32B;
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| U.S. Class: |
Current:
380/028;
380/042;
380/044;
380/262;
713/168;
713/180;
Original:
380/028;
380/004;
380/023;
380/042;
380/044;
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| Field of Search: |
380/003,4,23,24,25,28,42,44
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| Priority Number: |
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| Abstract: |
The pseudorandom process iteratively applies a selected CRC encryption process on the information to be encrypted. The encryption process is selected by testing one of the digits comprising the number to be encrypted. A first encryption process is used if the tested digit is a 1; a second encryption process is used if the tested digit is a 0. The process is repeated a plurality of times, e.g. once for each digit in the number to be encrypted, resulting in a highly encrypted value that is not easily reverse engineered by chosen or known plaintext attack.
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| Primary / Asst. Examiners: |
Cain, David C.;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
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