An improved tabu search algorithm to solve knapsack problem. The algorithm is ba...

一个DES加密算法的实现-a DES encryption algorithm implementation

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

标准的数据加密算法-standard data encryption algorithm

这个是基于混沌的DES加密算法应用与图象加密-Chaos DES encryption algorithm and the application of image encryption

SHA-2 的代码实现-SHA-2 source implementation

一个SHA加密库文件，用汇编语言开发完成的-a SHA encryption for document assembly language development completed

计算文件hash值的源代码，包含crc,md2,md4,md5,sha,sha1,sha256,ra-Calculated hash value of document

数据加密技术之几种算法 saeuro-1.03d.zip- data encryption technology several algorithms rsaeuro- 1.03d.zip

cryptoboot is set of tools for disk encryption on Unix. It is especially suited to encrypt root partition, so _everything_ (except kernel and cryptoboot inself) is encrypted. -cryptoboot is set of tools for disk encrypt ion on Unix. It is especially suited to encrypt r oot partition. so _everything_ (except kernel and cryptoboot inself) is encrypted.