| Description
| - The invention relates to a dynamic attribute authentication agent signature system and method, which receives a checkout and voucher message transmitted by a client through an electronic store; the dynamic password server receives a password message transmitted by a client, thereby generating a dynamic password message; The signature server, the dynamic password server, the record server and the electronic store are connected to each other. Wherein, when the electronic store determines that the voucher message is valid, the transaction time parameter of the checkout message is transmitted to the dynamic password server, and the dynamic password server returns the dynamic password message; the electronic store then transmits the checkout message, the dynamic password message and the user. The private key message is sent to the proxy signature server. The proxy signature server receives and hashes the hash value with the hash function, and the record server stores it to end the dynamic signature.
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