Title: Encryption system, encryption device, decryption device, program, and integrated circuit
Application Number: 200580005536 Application Date: 2005.04.28
Publication Number: 1922643 Publication Date: 2007.02.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09C1/00;H04L9/30
Applicant(s) Name: Matsushita Electric Ind Co., Ltd. Address:
Inventor(s) Name: Futa Yuichi;Ohmori Motoji;Yamamichi Masato
Attorney & Agent: xu dianjun
Abstract:
    An encrypted communication system, capable of performing processing with the speed higher than the conventionally achieved speed, has an encryption device and a decryption device which share parameters that satisfy p=3 and q=2^k (k: an integer of 2 or greater) (S161), where the decryption device generates a public key and a private key using the parameters (S162-S165), the encryption device encrypts a plain text using the public key (S166-S170), and then, the decryption device decrypts the encrypted text using its own private key (S171-S173).
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