Research on the Subliminal Channels and its Subliminal-free Protocol in Fiat-Shamir Signature
Qing Luo · Journal of Hunan University · 2009
The broad-band and narrow-band subliminal channels of Fiat-Shamir signature algorithm were put forward,and a new subliminal-free protocol was designed,in which subliminal channels existing in Fiat-Shamir signature were avoided and its security was analyzed.In protocol the warden and the signer finish the signature together,but the warden can't forge the signatures,so it can also be viewed as a signature scheme with the warden's examining and approving.