So, the design of the platform is of great meaning and effect in the research and design of cryptographic algorithm.

因此，该平台的研制对研究和设计密码算法具有十分重要的意义和作用。

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So we put forward an algorithm of dual concurrent signature and design an electronic payment protocol without the trusted third party (TTP).

通过以上分析研究，本文提出了“双重的同时生效签名”算法，设计了无可信第三方的电子支付协议。

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This paper shows that Hi-times substitute makes permutation structure more complicity, so symmetrical permutation can be chosen as the diffusion module in block cipher algorithm design.

指出了分组密码的多次迭代使对称置换结构复杂化，可以选择对称置换作为分组密码算法的扩散部分来设计。

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