关键词: 椭圆曲线 加密体制 安全性分析 密码分析

Abstract: We provide security analysis of a trapdoor discrete logarithm encryption scheme in elliptic curve ring proposed by Paillier, and point out the security flaws of it. The attacker can choose a proper plalntext to be encrypted, after getting the decrypted pl

Key words: Elliptic curve cryptogmphic scheme, Security analysis, Chosen ciphertext attack, Modulus factorization