EditPlus4.x java 激活码算法

EditPlus注册码在线生成,是由demon.tw博客转载过来。他的代码是 javascript 的,我给转成了 java的代码。

package com.runbrick.util;

/**
 * {@code GenerateKeyUtil} <生成Key>
 *
 * @author chow
 * @version 1.0
 * @since 1.8
 */
public class GenerateKeyUtil {

    private final Integer[] list = {0, 49345, 49537, 320, 49921, 960, 640, 49729, 50689, 1728, 1920, 51009, 1280, 50625, 50305, 1088, 52225, 3264, 3456, 52545, 3840, 53185, 52865, 3648, 2560, 51905, 52097, 2880, 51457, 2496, 2176, 51265, 55297, 6336, 6528, 55617, 6912, 56257, 55937, 6720, 7680, 57025, 57217, 8000, 56577, 7616, 7296, 56385, 5120, 54465, 54657, 5440, 55041, 6080, 5760, 54849, 53761, 4800, 4992, 54081, 4352, 53697, 53377, 4160, 61441, 12480, 12672, 61761, 13056, 62401, 62081, 12864, 13824, 63169, 63361, 14144, 62721, 13760, 13440, 62529, 15360, 64705, 64897, 15680, 65281, 16320, 16000, 65089, 64001, 15040, 15232, 64321, 14592, 63937, 63617, 14400, 10240, 59585, 59777, 10560, 60161, 11200, 10880, 59969, 60929, 11968, 12160, 61249, 11520, 60865, 60545, 11328, 58369, 9408, 9600, 58689, 9984, 59329, 59009, 9792, 8704, 58049, 58241, 9024, 57601, 8640, 8320, 57409, 40961, 24768, 24960, 41281, 25344, 41921, 41601, 25152, 26112, 42689, 42881, 26432, 42241, 26048, 25728, 42049, 27648, 44225, 44417, 27968, 44801, 28608, 28288, 44609, 43521, 27328, 27520, 43841, 26880, 43457, 43137, 26688, 30720, 47297, 47489, 31040, 47873, 31680, 31360, 47681, 48641, 32448, 32640, 48961, 32000, 48577, 48257, 31808, 46081, 29888, 30080, 46401, 30464, 47041, 46721, 30272, 29184, 45761, 45953, 29504, 45313, 29120, 28800, 45121, 20480, 37057, 37249, 20800, 37633, 21440, 21120, 37441, 38401, 22208, 22400, 38721, 21760, 38337, 38017, 21568, 39937, 23744, 23936, 40257, 24320, 40897, 40577, 24128, 23040, 39617, 39809, 23360, 39169, 22976, 22656, 38977, 34817, 18624, 18816, 35137, 19200, 35777, 35457, 19008, 19968, 36545, 36737, 20288, 36097, 19904, 19584, 35905, 17408, 33985, 34177, 17728, 34561, 18368, 18048, 34369, 33281, 17088, 17280, 33601, 16640, 33217, 32897, 16448};

    private final String[] hexchars = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"};

    private static GenerateKeyUtil generateKeyUtil = null;

    private GenerateKeyUtil() {
    }

    public static GenerateKeyUtil getGenerateKeyUtil() {
        if (generateKeyUtil == null) {
            generateKeyUtil = new GenerateKeyUtil();
        }
        return generateKeyUtil;
    }

    /**
     * 生成密钥
     *
     * @param userName 用户名
     * @return
     */
    public String generateKey(String userName) {
        int i, j, k = 0;
        int len = userName.length();
        String[] regcode = new String[29];


        for (i = 0; i < 5; i++, k++) {
            for (j = 0; j < 5; j++, k++) {
                regcode[k] = hexchars[(int) (Math.random() * 16)];
            }
            if (k == 29) {
                break;
            }
            regcode[k] = "-";
        }

        int sum = 1;
        int temp = 0;

        // =============================
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = (((sum + 23) / 6) + 3) * 7 % 16;
        regcode[6] = hexchars[temp & 15];
        // -----------------------------
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = ((3 * sum + 39) / 8) % 16;
        regcode[9] = hexchars[temp & 15];
        // -----------------------------
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = ((3 * sum + 19) / 9) % 16;
        regcode[7] = hexchars[temp & 0xF];
        // -----------------------------
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = ((sum + 10) / 3) * 8 % 16;
        regcode[10] = hexchars[temp & 0xF];
        // -----------------------------
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = (((9 * sum + 10) / 3) + 36) % 16;
        regcode[4] = hexchars[temp & 0xF];
        // ------------------------------
        for (i = 0; i < len; i++) {
            sum += Character.codePointAt(userName, i);
        }
        temp = ((5 * sum + 11) / 5) % 16;
        regcode[8] = hexchars[temp & 0xF];
        // =============================

        // =============================
        int result = 0;
        for (i = 0; i < len; i++) {
            result = ((result >> 8) & 0xFF) ^ list[Character.codePointAt(userName, i) ^ (result & 0xFF)];
        }
        String s = Integer.toHexString(result).toUpperCase();
        regcode[2] = String.valueOf(s.charAt(0));
        regcode[3] = String.valueOf(s.charAt(1));
        // -----------------------------
        len = regcode.length;
        result = 0;
        for (i = 2; i < len; i++) {
            result = ((result >> 8) & 0xFF) ^ list[Character.codePointAt(regcode[i].toString(), 0) ^ (result & 0xFF)];
        }
        s = Integer.toHexString(result).toUpperCase();
        regcode[0] = String.valueOf(s.charAt(0));
        regcode[1] = String.valueOf(s.charAt(1));
        // =============================


        StringBuilder stringBuilder = new StringBuilder();
        for (String str : regcode) {
            stringBuilder.append(str);
        }

        return stringBuilder.toString();
    }


}

# Java  解密 

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