Cryptography – Communication system using cryptography – Time segment interchange
Reexamination Certificate
2006-05-23
2006-05-23
Moise, Emmanual L. (Department: 2137)
Cryptography
Communication system using cryptography
Time segment interchange
C380S217000, C380S239000, C380S269000, C380S043000, C380S201000, C713S160000, C705S057000
Reexamination Certificate
active
07050583
ABSTRACT:
A method of producing a stream of digital data. The method includes determining a plurality of portions within the stream of digital data, such that a portion of the stream of digital data is encrypted with an encryption key that is capable of being decrypted by a decryption key and the portion including therein another decryption key capable of decrypting a subsequent portion of the stream of digital data, and the subsequent portion of the stream of digital data is encrypted with another encryption key that is capable of being decrypted by the another decryption key. The method also includes transmitting the stream of digital data, including the portion and the subsequent portion.
REFERENCES:
patent: 5341427 (1994-08-01), Hardy et al.
patent: 6021391 (2000-02-01), Shyu
patent: 0 676 876 (1995-10-01), None
patent: 1 032 159 (2000-08-01), None
patent: 1032159 (2000-08-01), None
Callahan Paul E.
Etreppid Technologies, LLC
Moise Emmanual L.
Pillsbury Winthrop Shaw & Pittman LLP
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