循环位移算法ROT-13,既输入的字符串的每个字符后移13位加密,在移13位解密.-displacement cycle algorithm ROT - 13, both input string of characters after each shift 13 encryption, the shift 13 declassified.

用java语言实现RSA加密算法，可循环测试加密。-Java language with RSA encryption algorithm, encryption can be recycled test.