有关欧几里德的扩展算法，非常实用，经测试好用

aes加密算法。用delphi语言实现。位数为128。-Aes encryption algorithm. Delphi use language. Median 128.

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NTL 大数运算库 专门RSA等加密算法运算库-Large numbers operator NTL library dedicated RSA encryption algorithm such as library operations

DES算法实现，非常有用，对于研究加密的朋友希望回有帮助-DES algorithm, very useful for research encryption friends want to return to help

首先，RC4算法生成一个“状态”，这开始为包含在订单值0-255的数组。然后该算法通过阵列迭代和周围交换的元素，基于所述键值。原始密钥然后可被丢弃，因为RC4只使用状态来创建一个伪随机密钥流，由算法选择的元素和吐出出来。密钥流的所述状态单靠额外的好处是，原来的密钥并不需要被保存在内存中。算法初始化状态。执行密钥调度算法（KSA）上的状态下，根据所输入的键（然后其可以被丢弃）。在算法选择（现炒）的状态，并将其输出作为密钥流元素。

组播密钥的批次更新算法，基于LKH的单次密钥更新方案和Batch Rekeying方案的原理、结构和密钥更新过程等。并着重对 Batch Rekeying 方案的性能与单次密钥更新方案作了简单的比较。 通过比较和分析得到结论:定时更新的Batch Rekeying 方案在更新开销上比单次更新更有优势 -Multicast key batch update algorithm, Based on the LKH single Rekeying program and the program Batch Rekeying principle, Rekeying structure and processes. And Batch Rekeying focused on the performance of the program with a single Rekeying program with a simple comparison. By comparing and analyzing conclusions : regularly updated Batch Rekeying program in the updated overhead than a single update more advantages

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has160哈希函数。用散列的方法将明文处理达到加密的效果。

The Advanced Encryption Standard (AES) specifies a FIPS- approved cryptographic algorithm that can be used to protect electronic data.  The AES-128 pipelined cipher module uses AES algorithm which is a symmetric block cipher to encrypt (encipher) information. This module is optimized for speed as it pipeline hardware to perform repeated sequence called round