An Efficient Code-Based One-Time Blind Signature Scheme for Electronic Forensics

Abstract

We propose a one-time blind signature scheme based on coding theory, which is improved on the basis of the SHMWW protocol. By adding two blinding factors, the anonymity of users is protected. The analysis proves that the scheme is secure and meets the requirements of completeness, blindness, and one-more unforgeability. Under the 128-bit security level, our scheme can achieve a signature length of 2.1 kB. The experimental results show that our scheme has a short signature length and high execution efficiency. Our scheme can also be applied to electronic forensics of traffic accidents on the Internet of Vehicles, which can protect users’ privacy.