Proxifier Keygen

proxifier-keygen.js

function createExpDate(year, month) {
    const expDate = (year - 2000) * 12 + month - 1;
}

function createRndNumber(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function CompileString(str) {
    result = new Uint32Array(1);
    result[0] = 0
    for (let i = str.length - 1; i >= 0; i--) {
        result[0] *= 32;
        c = str.charCodeAt(i);
        if (str[i] == 'W') {
            continue;
        }
        if (str[i] == 'X') {
            result[0] += 24;
        } else if (str[i] == 'Y') {
            result[0] += 1;
        } else if (str[i] == 'Z') {
            result[0] += 18;
        } else if (c <= 57) // '0' to '9'
        {
            result[0] += c - 48;
        } else // 'A' to 'V'
        {
            result[0] += c - 55;
        }
    }
    return result[0];
}

function CRC32LikeThingy(data) {
    let result = -1;
    for (let i = 0; i < 12; i++) {
        result ^= data[i] << 24;
        for (let j = 0; j < 8; j++) {
            if (result < 0) {
                result <<= 1;
                result ^= 0x4C11DB7;
            } else {
                result <<= 1;
            }
        }
    }
    return result;
}

function DecompileString(value, length) {
    let result = '';
    for (let i = 0; i < length; i++) {
        let tmp = value % 32 >>> 0;
        value = Math.floor(value / 32) >>> 0;

        if (tmp === 0) {
            result += 'W';
        } else if (tmp === 24) {
            result += 'X';
        } else if (tmp === 1) {
            result += 'Y';
        } else if (tmp === 18) {
            result += 'Z';
        } else if (tmp <= 9) {
            result += String.fromCharCode(tmp + 48);
        } else {
            result += String.fromCharCode(tmp + 55);
        }
    }
    return result;
}
String.prototype.Insert = function(index, string) {
    if (index > 0) {
        return this.substring(0, index) + string + this.substring(index, this.length);
    }

    return string + this;
};

function GenerateKey(product = 0, fourthKeyPart = null, expirationDate = 0) {
    debugger;
    let charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ",
        param1 = createRndNumber(0x2580, 0xFFFF) /* < 0x2580 ==> outdated key message */ + (product << 21),
        param2 = createRndNumber(0, 0xFFFF) + (expirationDate << 16) /* 0 ==> no expiration */ ,
        param3 = CompileString(fourthKeyPart);
    let data = new Uint8Array(12);
    const params = [param1, param2, param3];
    for (let i = 0; i < params.length; i++) {
        const param = params[i];
        const buffer = new ArrayBuffer(4);
        const view = new DataView(buffer);
        view.setInt32(0, param, true);
        const byteArray = new Uint8Array(buffer);
        data.set(byteArray, i * 4);
    }
    var value1 = CRC32LikeThingy(data) & 0x1FFFFFF;
    var value2 = value1 ^ (value1 << 7);
    var value3 = param1 ^ value2 ^ 0x12345678;
    var value4 = param2 ^ value2 ^ 0x87654321;
    let key = DecompileString(value3 >>> 0, 7);
    key += DecompileString(value4 >>> 0, 7);
    key += key[2]; // 15th char becomes 3rd
    key += fourthKeyPart;
    key += DecompileString(value1 >>> 0, 5);
    // 3rd char doesn't affect the key check, as long as it's not a 'Y' ==> Proxifier v2 key (outdated)
    let rndChar = charset[createRndNumber(0, (charset.length - 1))];
    if (rndChar == 'Y')
        rndChar++;
    key = key.slice(0, 2) + rndChar + key.slice(3);
    key = key.Insert(20, "-").Insert(15, "-").Insert(10, "-").Insert(5, "-");
    return key;
}
console.log(GenerateKey(0, "DR01D", createExpDate(2033, 1)));