Security Analysis of an Elliptic-Curve Based Encryption Scheme
Zheng Jiang · 2005
We provide security analysis of a trapdoor discrete logarithm encryption scheme in elliptic curve ring pro- posed by Paillier, and point out the security flaws of it. The attacker can choose a proper plaintext to be encrypted, af- ter getting the decrypted plaintext, he can factorize the modulus, and attack the encryption scheme successively, so this encryption scheme can not withstand chosen ciphertext attack.