Abstract:In order to improve the accuracy of authentication and ensure the data security of power monitoring system, an authentication method for issuing instructions from the master station of power monitoring system based on the signature technology of credit guarantee system is proposed. When the master station of the power monitoring system issues instructions to the sub station, the multi digital signature scheme based on identity and mcrsa is used to realize the digital signature of the issued instructions by establishing the setup algorithm, obtaining the private key, signing algorithm and other steps, and the digital signature of the instructions is transmitted to the sub station to play the role of instruction signature or seal, After the instruction digital signature is decrypted by the sub station, the instruction summary and digital signature summary are obtained respectively. By judging the consistency of the two summaries, the identity of the user issuing the instruction is verified, and the scheme security analysis is realized through verifiability, non repudiation and non forgery. The experimental results show that this method can verify the identity of the user issuing the instruction, resist the attack behavior of the attacker, the false rejection rate and false acceptance rate are low, and the authentication performance is outstanding. |