关键词: 椭圆曲线, 数字签名, 环签名, 匿名性, 不可伪造性

Abstract: There are many types of ring signature schemes, but most of them are based on bilinear pairing, and have some problems in security and computing speed. Compared with Elliptic Curve Cryptography （ECC）, the advantage of bilinear pairing is not obvious, and it can not provide higher level of security, takes less storage space. In order to improve the security of the scheme and protect the anonymity of the signer’s ID, adding the signer’s ID which is processed in ring signature scheme, a new hidden identity ring signature scheme using elliptic curve cryptography is proposed. Finally, the correctness and security will also be provided by the security analysis.

Key words: elliptic curve, digital signature, ring signature, anonymity, unforgeability