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The paper analyzed the security threats and system flaws of present proxy authorization signatures, and a forward secure proxy authorization signature scheme with conditionally anonymity based on ECC (elliptic curves cryptosystem) was presented. The identity blinding and probabilistic encryption algorithm of the scheme enable the proxy signer to be conditionally anonymous for secrecy protection, and...
Proxy authorization signature is essential to electronic commerce and other electronic transaction. This paper analyzed the security threats of present proxy authorization signatures and the basic principles of proxy signature together with its superiority in electronic transaction application. We present a conditionally anonymous proxy authorization signature scheme with forward security. The identity...
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