DES加密算法的实现和演示，具体算法见网上，程序中有注释

HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION -HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION

ieee一种基于混沌的新加密方法An Image Encryption Scheme Based on Chaotic Map - In this paper, a novel block digital image encryp- tion scheme based on a chaotic coupled map lattices (CML) is reported. Within this scheme, an original image is decomposed into sub-blocks with a given size, and an external secret key with 192-bit is used and mapped to the system parameters, which are employed to generate a spatiotemporal chaotic binary sequence matrix to encrypt the block original image. Besides, the former sub-block encrypted result will be acted as a feedback to the following sub-block encryption proc- ess. The proposed scheme is described in detail, along with the security analyses such as key space analysis, sensitivity analysis, information entropy analysis and correlation coefficients analysis of adjacent pixels. The computer simulation results indicate that the suggested image encryption scheme has some properties desir- able in a good security

uthash 是一个C语言的哈希表，支持各种结构类型的存储、添加、删除，这些操作都在固定的时间完成，跟哈希表本身的大小无关。键也可以是任何类型的数据。-is a C language uthash the hash table to support a variety of structural types of storage, add, delete, these operators are in a fixed time to complete, with the hash table size in itself has nothing to do. Keys can also be any type of data.

ieee加密新文章A New Image Encryption Arithmetic Based on a Three-dimensional Map -A New Image Encryption Arithmetic Based on a Three-dimensional Map

RC6 encryption algorithm implementation

Crypto++软件包，包括11个例子，25种加密算法的源程序，从AES到XTEA。-Crypto++ Packages, including 11 examples of 25 kinds of encryption algorithm source code, from the AES to XTEA.

has160哈希函数。用散列的方法将明文处理达到加密的效果。

非常详细的SM2、SM3、SM4算法说明及c语言代码，国密局公开算法。

详细的AESRSASHA1实现原理，其中RSA中内容自建的大书包。-Detailed AESRSASHA1 Principle, in which the contents of self-RSA big bags.

OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port.