Designated Verifier Signature with Repudiability
Takumi Matsuura, Keisuke Hara, Kyosuke Yamashita · 2024
Designated Verifier Signature (DVS) is an extension of digital signature that allows the specification of the verifier. This feature is realized by granting the designated verifier the privilege of simulating a valid signature, thereby virtually invalidating the third-party verification of the signature. However, this implementation means that when a malicious verifier is designated, signature forgery can be easily accomplished.