STATELESS COMMUNICATION SECURITY SIGNATURE METHOD, TERMINAL AND SERVER END

Provided is a stateless communication security signature method. The method comprises the following steps: a terminal storing a pre-determined key unified with a server end; the terminal obtaining an encrypted first character string after performing encryption at least twice; the server end carrying out encryption according to the encryption mode of the terminal to obtain a second character string; and the server end comparing whether the first character string and the second character string are the same, so as to determine whether or not to accept a request from the terminal. Further provided are a terminal and a server end. Compared with the related art, the stateless communication security signature method, the terminal and the server end in the present invention have higher security and better reliability. L'invention concerne un procédé de signature de sécurité pour des communications n'utilisant pas d'états. Le procédé comprend les étapes suivantes : un terminal stocke une clé prédéterminée unifiée ave