Cryptography – Communication system using cryptography – Time segment interchange
Reexamination Certificate
2007-10-02
2007-10-02
Zand, Kambiz (Department: 2134)
Cryptography
Communication system using cryptography
Time segment interchange
C380S028000, C380S029000, C713S190000
Reexamination Certificate
active
09651424
ABSTRACT:
A portion of a digital good is selected to be used as a substitution box (S-box) in encrypting at least another portion of a digital good. The digital good being encrypted can be the same digital good, or alternatively a different digital good, than the digital good from which the portion used as an S-box is obtained. During the encryption process, the S-box is used to substitute values of the portion being encrypted with new values (a process also referred to as “scrambling”).
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Jakubowski Mariusz H.
Venkatesan Ramarathnam
Lee & Hayes PLLC
Microsoft Corporation
Tran Tongoc
Zand Kambiz
LandOfFree
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