Not only the attack from outside of system but also the fraud of system inner can be resisted by the improved scheme.

该改进的方案不仅可以抵抗外来攻击，也可以防止来自系统内部的欺诈。

youdao

Improved scheme has advantages of nonrepudiation, against he original signer's forgery attack and public key substitution attack etc.

改进的方案具有不可否认性，以及抵抗原签名人的伪造攻击和公钥替换攻击等优点。

youdao

Besides having the basic properties of the proxy signature, the new scheme prevents proxy misuse, original signer's forgery and public key substitution attack.

此外，该方案不仅满足代理签名的基本性质，还避免了代理权滥用、原始签名人伪造和公钥替换攻击。

youdao

Not to Milton Friedman, who called the contribution scheme needlessly regressive as part of his attack on Social Security.

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