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US 2010/0150350 A1Published application
Method and Apparatus for Key Expansion to Encode Data
AssigneeITT Manufacturing Enterprises, Inc.
InventorBruce Edward Reidenbach
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AssigneeITT Manufacturing Enterprises, Inc.
InventorBruce Edward Reidenbach
Estimating the term…
An encoder according to the present invention embodiments employs a key expansion module to expand an encryption key by using logic and available clock cycles of an encryption process or loop. The key expansion module generates control signals to enable key expansion data to be injected at appropriate times into the encryption loop (e.g., during available clock cycles of the encryption loop) to perform the key expansion, thereby utilizing the resources of the encryption loop for key expansion. The key expansion module dynamically accounts for varying key lengths, and enables the encryption loop to combine the data being encrypted with proper portions of the expanded key. The use of encryption logic and available clock cycles of the encryption loop for the key expansion reduces the area needed by the encoder on a chip and enhances encoder throughput.
An encoder comprising:
A method of encoding data within an encoder including and a key expansion circuit module to expand an encoding key, and an encode circuit module with an encode processing circuit module to process said data to facilitate said encoding, said method comprising:
Dependencies are inferred from the claim text.