Security authentication method, apparatus and system for

The present disclosure relates to a security authentication method, apparatus and system belongs to the technical field terminals. The method comprising: generating a cipher text information and the i-th step corresponding to the verification; information to be transmitted ciphertext verification terminal; receiving terminal to be authenticated is the i-th verification step for calling invocation request transmitted; is a call request when the ciphertext message initiated, of the i-th verification step; when the i-th step of verifying the verification is successful, and i ≠ n, calculating i = i + 1 and executes the cipher text information to generate the i-th verification step corresponds again A step of. Solve the problem of verification of the low success rate for falsifying applications resulting from the presence of the background art; due forged client can not meet the above trigger the execution of the i-th step verification conditions, and thus can not pass the verification process, improve the success rate of validation .