一系列的加密算法，包括恺撒密码、KeyWord密码、PlayFair密码、Vigenere密码、LFSR密码、RC4密码、DES密码和IDEA密码。-A series of encryption algorithms, including Caesar password, keyword password, the Playfair password, the Vigenere Password, the LFSR password, RC4 password DES password and