对于啁啾量相同的脉冲，脉冲宽度越小或模指数越大其奇异性位置离光束中心越近。

The singularity is located nearer to the central axis for the pulses with higher order transverse modes and shorter pulse duration.

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本文提出了一种可以证明安全性的身份识别方案，只包含一次模指数运算，其在线计算只需要一次乘法和一次加法。

There is only one exponent calculation in our scheme and the on-line computing is just a one multiplication together with one addition.

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同时为进一步提高服务器的运算速度，在服务器端利用中国剩余定理(CRT)对RSA解密算法中的模指数进行降幂处理。

Meanwhile, in order to improve the computation speed of the server, the Chinese Remainder Theorem (CRT) is used in RSA decryption algorithm.

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