Error injection method and system in elliptic curve public key cryptography algorithm security evaluation

The invention discloses an error injection method and system in elliptic curve public key cryptography algorithm security evaluation, relates to the technical field of information security, and is used for solving the problem that attack evaluation is difficult to implement in elliptic curve cryptography algorithm security evaluation based on the prior art. The method comprises a step of acquiringa group of signature data, a step of signature value availability analysis, and a step of recovering a key by using the group of available signature values. The system comprises a unit for acquiringa group of signature data, a signature value availability analysis unit and a key recovery unit. According to the method, error injection is utilized to bypass a random number updating step, so that the same random number k is used for two successive signatures. For an evaluator, the private key dA can be obtained by using two correct signatures. According to the method, reverse verification protection of the signature can