Method of a public key encryption and a cypher communication...

Details Method of a public key encryption and a cypher communication... Method of a public key encryption and a cypher communication...

2007-01-16

2007-01-16

Barron, Gilberto (Department: 2132)

Cryptography

Particular algorithmic function encoding

Public key

C380S028000, C380S044000, C713S150000

Reexamination Certificate

active

10059339

ABSTRACT:
The public-key encryption method uses the sender-side apparatus by the creator of a ciphertest and creates the ciphertext of a plaintext x (ε{0, 1}n) in y1=f (x0k1G(r)), y2=H (x0k1G(r))r with respect to the published trapdoor-equipped unidirectional function f and the random functions G, H. Meanwhile, the receiver of the ciphertext, who has received the ciphertext by the receiver-side apparatus via the communications line, performs the decryption processing with the use of f−1, i.e., the secret key, in accordance with the steps inverse to those of the encryption processing.

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