Distributed cryptographic methods and arrangements

Details Distributed cryptographic methods and arrangements Distributed cryptographic methods and arrangements

2007-09-11

2007-09-11

Revak, Christopher (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S176000, C713S180000, C713S189000, C713S193000, C713S194000, C380S044000, C380S047000, C380S277000, C705S056000

Reexamination Certificate

active

09797210

ABSTRACT:
First and second computing devices are selectively operatively coupled together. The first device provides data to the second device. The second device can be a portable computing device. The second device is configured to encrypt/decrypt the data, as needed by the first device. The second device maintains the cryptographic key data internally. As such, the first device, which, for example, may be a personal computer will only maintain the returned encrypted data following encryption and only temporarily use any returned decrypted data. Thus, by physically and operatively distributing the cryptographic processing/maintenance between the two devices, additional security is provided for protecting private data.

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