Cryptography – Communication system using cryptography – Symmetric key cryptography
Reexamination Certificate
2008-04-22
2008-04-22
Zand, Kambiz (Department: 2134)
Cryptography
Communication system using cryptography
Symmetric key cryptography
C380S028000, C380S029000, C380S030000, C380S044000, C380S047000
Reexamination Certificate
active
10276163
ABSTRACT:
A symmetric key cryptographic method is provided for short operations. The method includes batching a plurality of operation parameters (1503), and performing an operation according to a corresponding operation parameter (1505). The symmetric key cryptographic method is a Data Encryption Standard (DES) method. The short operations can be less than about 80 bytes. The short operations can be between 8 and 80 bytes. The method includes reading the batched parameters from a dynamic random access memory (1504), and transmitting each operation through a DES engine according to the operations parameter (1505).
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patent: 5850443 (1998-12-01), Van Oorschot et al.
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English Abstract.
Lindemann Mark
Perez Ronald
Smith Sean William
F. Chau & Associates LLC
Tran Tongoc
Zand Kambiz
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