A Blind Signature Based on Discrete Logarithms Problem

• Main Authors: Yu-An Lin, 林昱安
• Other Authors: Victor R. L. Shen
• Format: Others
• Language: en_US
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/70796621509785740530

碩士 === 國立臺北大學 === 電機工程研究所 === 97 === In 1983, D. Chaum first introduced the concept of blind signature. In the blind signature scheme, the requester requests the signer to sign on a blinded message. Then the requester derives the signature from the blind signature. When the requester releases the signature pair in public, the signer is unable to link this signature pair. In this paper, we propose a new blind signature scheme based on discrete logarithms problem and Harn’s generalised ElGamal type digital signature schemes. Then we give the details of our new blind signature scheme. Finally, we shall examine the correctness, blindness, unforgeability, and untraceability of our proposed blind signature scheme.