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FIFO architecture with in-place cryptographic service

  • US 20030039354A1
  • Filed: 08/27/2001
  • Published: 02/27/2003
  • Est. Priority Date: 08/27/2001
  • Status: Abandoned Application
First Claim
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1. A cryptographic system comprising:

  • a first FIFO data storage device having a primary write address to receive unprocessed data via a first data path into the first FIFO data storage device, a primary read address, a secondary read address and a secondary write address; and

    an encryption/decryption circuit configured to read the unprocessed data via the secondary read address, selectively encrypt or decrypt the unprocessed data read via the secondary read address to generate processed data, and write the processed data back into the first FIFO data storage device via the secondary write address, such that the processed data written back into the first FIFO data storage device can be read from the first FIFO data storage device via the primary read address.

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