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Methods and apparatus for keystream generation

Cryptography – Key management – Having particular key generator

Reexamination Certificate

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Methods and apparatus for mediametric data cryptoprocessing

Cryptography – Key management – Having particular key generator

Reexamination Certificate

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Methods and apparatus for monitoring the integrity of a...

Cryptography – Particular algorithmic function encoding

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Methods and apparatus for multi-level dynamic security system

Cryptography – Communication system using cryptography – Having compression

Reexamination Certificate

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Methods and apparatus for multi-level dynamic security system

Cryptography – Communication system using cryptography – Having compression

Reexamination Certificate

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Methods and apparatus for passing initialization vector...

Cryptography – Communication system using cryptography – Time segment interchange

Reexamination Certificate

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Methods and apparatus for performing hash operations in a...

Cryptography – Particular algorithmic function encoding

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Methods and apparatus for persistent control and protection...

Cryptography – Video cryptography – Copy protection or prevention

Reexamination Certificate

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Methods and apparatus for persistent control and protection...

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for preventing unauthorized write access t

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Patent

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Methods and apparatus for protecting information content

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for protecting information content

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for protecting information content

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for protecting signals transmitted...

Cryptography – Communication system using cryptography – Pseudo-random sequence scrambling

Reexamination Certificate

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Methods and apparatus for protecting signals transmitted...

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for providing a message authentication...

Cryptography – Communication system using cryptography – Time segment interchange

Reexamination Certificate

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Methods and apparatus for providing a partial dual-encrypted...

Cryptography – Video cryptography – Video electric signal modification

Reexamination Certificate

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Methods and apparatus for providing a secure paging system

Cryptography – Cryptanalysis

Patent

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Methods and apparatus for providing networked cryptographic...

Cryptography – Key management – Key escrow or recovery

Reexamination Certificate

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Methods and apparatus for providing upgradeable key bindings...

Cryptography – Key management

Reexamination Certificate

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