The current fuzzy identity encryption method can not safely access all bytes,resulting in unsatisfactory encryption effect.A fuzzy identity multi-party encryption algorithm based on homomorphic hash authentication is designed.Combined with homomorphic hash authentication technology,the security protection of fuzzy identity is divided into establishment stage,authentication stage and protection stage,so as to achieve the security protection of fuzzy identity.Construct a homomorphic hash function to obtain the encrypted ciphertext.The homomorphic piecewise Logistic chaotic system is used to process the real number sequence to form the position scrambling feature template.Combined with the operation of parity transformation,the multi-party encryption of fuzzy identity is completed.The experimental results show that the algorithm can safely access 13 Bytes,and the obtained ciphertext is consistent with the ideal ciphertext.The practical application effect is good.
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