Security Authentication Method of Information Aggregation Communication Based on SM2 Cryptographic Algorithm
At present,the security authentication is vulnerable to malicious attacks,abnormal traffic and virtual in-formation,so the security of collective communication decreases.Therefore,a security authentication method for col-lective communication based on the SM2 cryptographic algorithm was proposed.First,the SM2 encryption algorithm was adopted to encrypt the communication data.Secondly,the elliptic curve was set,and then the receiver's public key was input into it.Meanwhile,the subgroup on its curve was calculated,and the result was sent to the receiver as a ci-phertext,thus completing the data encryption.According to the random number generation algorithm,the authenticity of communication users was determined,and the communication data nodes were quantized in the aggregation process.Moreover,the best key of the node under different aggregation conditions was predicted.On this basis,the encryption level was determined.Finally,the security authentication of collective communication was achieved.Experimental re-sults show that the proposed method has strong security.The time consumption of communication data in the RSA en-cryption library,Mcryp encryption extension library and JPBC encryption library is less than 15ms.
Communication data encryptionIdentity authenticationElliptic curve public key CryptographyCommunication keyOptimal key seriesOne-dimensional requirement vector table
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