Java版Mysql4.1之前的old_password加密算法。
package mytest;public class MySQLOldPassword {public String getMySQLPassword(String password) {long nr = 1345345333L, add = 7, nr2 = 0x12345671L;long tmp = 0;for (int i = 0; i < password.length(); i++) {tmp = password.charAt(i);if (tmp == ' ' || tmp == '\t') {continue;}nr ^= (((nr & 63) + add) * tmp) + (nr << 8);nr2 += (nr2 << 8) ^ nr;add += tmp;}long result_1 = nr & (((long) 1L << 31) - 1L);long result_2 = nr2 & (((long) 1L << 31) - 1L);String str1 = Long.toHexString(result_1);String str2 = Long.toHexString(result_2);return str1.concat(str2);}public static void main(String args[]) {System.out.print(new MySQLOldPassword().getMySQLPassword("qq123456"));}}