Cryptography – Key management
Reexamination Certificate
2007-05-22
2007-05-22
Vu, Kim (Department: 2135)
Cryptography
Key management
C380S028000, C380S037000
Reexamination Certificate
active
10132788
ABSTRACT:
An advanced encryption system (AES) architecture includes a maximum parallel encryption module which implements one round of the AES algorithm in one clock cycle, and a maximum parallel key scheduling module which generates sub-keys in one clock cycle in parallel with the encryption module, thereby permitting feedback modes of operation to be used without adversely affecting AES throughput. A controller controls the operation of the encryption and key scheduling modules such that one round is completed per clock cycle. The controller is preferably part of a hierarchical distributed control scheme comprising communicating finite state machines (FSMs). The architecture also preferably includes asynchronous input and output buffers.
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DLA Piper (US) LLP
Pich Ponnoreay
Silicon Storage Technology, Inc.
Vu Kim
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