Encryption/decryption engine for multiple isochronous data...

Details Encryption/decryption engine for multiple isochronous data... Encryption/decryption engine for multiple isochronous data...

2005-04-05

2005-04-05

Darrow, Justin T. (Department: 2132)

Cryptography

Communication system using cryptography

Data stream/substitution enciphering

C380S037000, C380S043000, C708S135000

Reexamination Certificate

active

06876746

ABSTRACT:
Buffers, or registers, are used at one or more places between processing stages in a device for decrypting a data stream. The device has multiple processing stages arranged in a circular manner so that data is repeatedly passed from a prior stage to a next stage, and from a last stage back to a first stage, until processing is completed. The use of one or more registers at one or more positions allows data to be stored so that the stream associated with the stored data can effectively be suspended. This allows data from another stream to be processed while the suspended stream is in a wait state.

REFERENCES:
patent: 6189095 (2001-02-01), Coppersmith et al.
patent: 6195368 (2001-02-01), Gratacap
patent: 6275878 (2001-08-01), Yashima et al.
patent: 363255675 (1988-10-01), None
patent: 406245086 (1994-09-01), None
M. Oomori, JP 06-245086 A, “Encoding and Decoding Method,” Sep. 2, 1994, Japan Patent Office, Computer Translation into English. Retrieved from the Internet:<URL: http://www.ipdl.jpo.go.jp/homepg_e.ipdl>.*
Forensic Translation into English of Ricoh Co., Ltd. (Omori), “Encoding and Decoding Method,” Japan Unexamined Patent Publication No. 6-245086 A, Sep. 2, 1994.

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