Supported by the National Natural Science Foun-dation of Chinafor Distinguished Young Scholars(60225007) ;the Na-tional Research Fundfor the Doctoral Programof Higher Education ofChina(20020248024) ;the Science and Technology Research Pro-ject of Shanghai (04DZ07067)
In a strong designated verifier proxy signature scheme, a proxy signer can generate proxy signature on behalf of an original signer, but only the designated verifier can verify the validity of the proxy signature. In ...
supported by the National Natural Science Foundation of China(Grants Nos.60225007 and 60572155);the National Research Fund for the Doctoral Program of Higher Education of China(Grant No.20020248024);the Science and Technology Research Project of Shanghai(Grant Nos.04JC14055 and 04DZ07067).
Threshold digital signature and blind signature are playing important roles in cryptography as well as in practical applications such as e-cash and e-voting systems. Over the past few years, many cryptographic researc...
National Natural Science Foundation of Chi-na for Distinguished Young Scholars (No.60225007);National Research Fund for theDoctoral Program of Higher Education ofChina (No.20020248024);Grant-in-Aid forScientific Research(C) (No.14540100)
Identity-based proxy signature enables an entity to delegate its signing rights to another entity in identity-based cryptosystem settings. However, few existing scheme has been proved secure in a formalized model, or ...