Methods and apparatus for implementing a cryptography engine

Details Methods and apparatus for implementing a cryptography engine Methods and apparatus for implementing a cryptography engine

2004-10-29

2009-06-30

Revak, Christopher A (Department: 2431)

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

C380S030000, C380S028000, C380S259000, C380S037000, C713S168000, C713S171000, C713S189000, C713S190000, C714S724000

Reexamination Certificate

active

07555121

ABSTRACT:
Methods and apparatus are provided for implementing a cryptography engine for cryptography processing. A variety of techniques are described. A cryptography engine such as a DES engine running at a clock frequency higher than that of surrounding logic can be synchronized with the surrounding logic using a frequency synchronizer. Sbox logic output can be more efficiently determined by intelligently arranging Sbox input.

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