A Survey on the Authorization Technology of Digital Signature
Cao Jian-ying · Journal of Longdong University · 2010
The study of authorization technology of digital signature was surveyed,including the authorization of signing,verification and revocation.To solve the corresponding problems,some possible methods are discussed.The conclusion is that with the help of the Chameleon function,the proxy signature can be made shorter and easily calculated;the security model of hieratical authorization signature can be established based on the security model of sequential multi-signature;knowledge proof method can be used in designing the revocation scheme of signature.