With proxy signature, an original signer can entrust his signing authority to a proxy signer.
在代理签名方案中，原始签名人能将其数字签名权力委托给代理签名人。
Even if the current secret key of proxy signer has been leaked, the attacker can't forge the proxy signature of the past period time.
即使当前时段的代理签名密钥泄露，攻击者也无法得到以前时段的代理签名。
Furthermore, the proposed scheme can prevent the original signer from generating a valid proxy ring signature, thus the profits of the proxy signer are guaranteed.
提出的方案能够防止原始签名人生成一个有效的代理环签名，从而保护了代理签名人的权益。
The first type is called a proxy multi-signature scheme and it allows a group of original signers to authorize a proxy signer on behalf of the original signer group.
第一类称为代理多签名体制，它允许一组原始签名人授权给一个代理签名人来代表他们；
In addition, the proposed scheme satisfies all properties of strong proxy signature and doesn't need to use secure channel between the original signer and the proxy signer.
此外，新方案还满足强代理签名的所有性质，并且在原始签名者和代理签名者之间的通信可以不使用安全信道。
In this scheme, when an original signer finds that a proxy signer is malicious, he can revoke the malicious proxy signers signing capability efficiently through a trusted authority.
当原始签名者发现代理签名者不诚实时，该体制可以通过可信中心有效地撤销代理签名者的签名权。
In this scheme, when an original signer finds that a proxy signer is malicious, he can revoke the malicious proxy signers signing capability efficiently through a trusted authority.
当原始签名者发现代理签名者不诚实时，该体制可以通过可信中心有效地撤销代理签名者的签名权。
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