Data Encryption Standard - Wikipedia The introduction of DES is considered to have been a catalyst for the academic study of cryptography, particularly of methods to crack block ciphers According to a NIST retrospective about DES, The DES can be said to have "jump-started" the nonmilitary study and development of encryption algorithms
DES算法原理及实现 - Pion1eer DES是一种常用的分组密码（块密码）加密技术。 本文介绍了 DES 加密体系，给出了详细的算法描述和 Python 版代码实现。