Encryption apparatus, cryptographic communication system,...

Details Encryption apparatus, cryptographic communication system,... Encryption apparatus, cryptographic communication system,...

2005-01-11

2005-01-11

Barrón, Gilberto (Department: 2132)

Cryptography

Key management

Key escrow or recovery

C380S278000, C380S279000, C713S155000, C713S156000, C713S157000, C713S171000

Reexamination Certificate

active

06842523

ABSTRACT:
In an encryption apparatus for encrypting a data body to contain an encrypted data body in transmission data and transmitting the transmission data to a receiver, the transmission data includes sender's key recovery data obtained by encrypting recovery information for recovering a key for decrypting the encrypted data body to allow a key recovery agent registered by a sender to decrypt the recovery information, and receiver's key recovery data obtained by encrypting the recovery information for recovering the key for decrypting the encrypted data body to allow a key recovery agent registered by a receiver to decrypt the recovery information.

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