| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for improving security in a communication system to be used to transfer information between at least a pair of correspondents. SOLUTION: The communication performed between correspondents generally has steps of: generating key pairs in accordance with the arithmetic properties of a chosen algorithm, communicating one of the keys, being a public key, to the other party by way of a certificate, generating and transmitting a signature using a private key of the key pairs by one of the correspondents; and transmitting the signature to the other correspondent and verifying the signature by the recipient. The invention further provides for the additional step of verifying the public key conforming to the arithmetic properties dictated by the requirements of the predetermined algorithm. COPYRIGHT: (C)2010,JPO&INPIT
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