no signature

The CA mechanism is executed by using the no-inverse digital signature scheme, and the complexity of computing is reduced. The mutual signatures of communication realize the nonrepudiation. The security analysis of the protocol is given.

应用无求逆数字签名方案实现CA认证，简化了计算复杂度，并通过通讯双方数字签名实现不可抵赖性，最后给出了协议安全分析。

This is a computer-generated form letter which requires no signature.

这是一封由电脑造出的无需署名信.

And with a red-carpet repertoire that includes sparkling dresses, metallic shadows and her signature spiral curls, there's no reason to doubt her.

当她穿着夺目礼服，涂着金属色眼影，披着她的标志性大卷发走上红毯时，你就明白她为什么这样会说了。

Any form with no signature or otherwise incorrectly completed will be void.

如本表格未有签署、或在其他方面填写不正确,则本表格将会作废.

This is a machine-generated certificate and no signature is required.

这份证明由机器印刷，无需签名即可生效。

Please take note of our signature, and regard no others as genuine.

请记下我们的签名, 其它签名均属无效.