量子密钥分发密钥率仿真MATLAB代码

加密算法之一加密算法a-encryption algorithm encryption algorithm a

删除系统某存储区中的证书， 代码参考msdn(removal system of a storage area of the certificate, a code reference VARIANT)

笔者长期从事移动通信系统的无线链路调制与解调、物理层实现方面的工作。在移动通信GSM系统中，我们进行语音或者业务信道解调时，都会遇到CRC的求解。通常在硬件DSP实现时，特别是40位CRC求解时候，由于生成多项式有41项，DSP最大一次能处理40位，所以使用单个寄存器会遇到一些困难，那么以下这个程序将会解决这一困难（这是针对定点DSP、C55xx的编程实现方法）。-The author has long been engaged in mobile communication system modulation and demodulation of wireless links, the physical layer to achieve work. GSM in the mobile communications system, we have a voice or channel demodulation operations, it will encounter the solution of CRC. DSP hardware usually realize, especially when solving the 40 CRC, as the generation polynomial has 41, DSP can handle the largest 40, so using a single register may encounter some difficulties, then following this process will solve this One difficulty (which is for fixed-point DSP, C55xx realize programming methods).

Encryption process movies into frames video for data encryption

说明：  SHA1安全哈希算法（Secure Hash Algorithm）主要适用于数字签名标准 （Digital Signature Standard DSS）里面定义的数字签名算法（Digital Signature Algorithm DSA）(SHA1 Secure Hash Algorithms are mainly applicable to Digital Signature Algorithms (DSA) defined in Digital Signature Standard DSS.)

sspi_workbench

DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。DES算法以被应用于许多需要安全加密的场合。（如：UNIX的密码算法就是以DES算法为基础的）。-DES (Data Encryption Standard) algorithm, in 1977 the United States government"s official permission, is a key 56 to 64-bit data encryption methods. DES algorithm to be applied to many needs security encryption occasions. (Eg : UNIX password algorithm is to DES algorithm-based).

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md5 算法的纯c版本。方便移植到各种嵌入式小型设备不支持c++的环境-md5 algorithm with pure C version. Easy to transplant it to systems using only C, but not C++

介绍了Microsoft CryptoAPI加密技术加密技术 讲了Microsoft CryptoAPI的构成以及会话密钥的使用-Introduction of the Microsoft CryptoAPI encryption technology, encryption technology, said a Microsoft CryptoAPI session key of the composition and the use of