Method of encryption using multi-key process to create a...

Cryptography – Key management – Having particular key generator

Reexamination Certificate

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C380S280000, C380S046000

Reexamination Certificate

active

10299847

ABSTRACT:
In symmetric methods of encryption the key should be as long as the plaintext message. Such a key is difficult to generate if the plaintext data to be encrypted is enormous. The present invention provides a method of creating a random key of variable length which may be extremely long. It is generated by consecutively applying sub-keys having shorter non-repeating random lengths.

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