JDxTEA #JD #XTEA

JDxTEA.js

//// libDecryptorJni.so TeaEncryptECB ////

function xor(a, b) {

    var l = a.length,
        t, ret = [];
    console.log("l:" + l);
    for (var i = 0; i < l; i++) {
        var aa = a[i];
        console.log(aa)
        t = aa ^ b[i];
        console.log(t);
        ret.push(t);
    }

    return ret;
}



var delta = 0x9E3779B9;

function encipherArray(array, key) {
    var sum = delta,
        n = 0x10; //16轮加密
    var data = arrayToLongArray(array);
    while (n-- > 0) {
        data[0] += ((data[1] << 4 & 0xFFFFFFF0) + key[0]) ^ (data[1] + sum) ^ ((data[1] >> 5 & 0x07ffffff) + key[1]);
        data[1] += ((data[0] << 4 & 0xFFFFFFF0) + key[2]) ^ (data[0] + sum) ^ ((data[0] >> 5 & 0x07ffffff) + key[3]);
        sum += delta;
    }
    return longArrayToArray(data);
}

function arrayToLongArray(array) {
    var result = [];
    for (var i = 0, length = array.length; i < length; i += 4) {
        result.push((
            array[i + 0] << 24 |
            array[i + 1] << 16 |
            array[i + 2] << 8 |
            array[i + 3]));
    }
    return result;
}

function longArrayToArray(data) {
    var result = [];
    for (var i = 0, length = data.length; i < length; i++) {
        result.push(data[i] >>> 24 & 0xff,
            data[i] >>> 16 & 0xff,
            data[i] >>> 8 & 0xff,
            data[i] & 0xff);
    }
    return result;
}

function test() {
    console.log("============== XTEA of JD Application (iOS and Android)  =================");
    var v = [1, 9, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 6, 0, 100, 1, 17, 0, 0, 2, 0, 40, 0, 4, 116, 101, 115, 116, 0, 32, 48, 57, 56, 102, 54, 98, 99, 100, 52, 54, 50, 49, 100, 51, 55, 51, 99, 97, 100, 101, 52, 101, 56, 51, 50, 54, 50, 55, 98, 52, 102, 54, 0, 4, 0, 52, 48, 48, 48, 97, 48, 48, 48, 49, 48, 48, 48, 54, 48, 48, 48, 49, 48, 48, 50, 48, 69, 67, 50, 55, 53, 69, 50, 48, 67, 53, 57, 66, 54, 57, 65, 50, 53, 65, 57, 70, 49, 56, 52, 50, 55, 68, 57, 48, 68, 54, 55, 51, 0, 8, 0, 100, 0, 2, 0, 100, 0, 7, 97, 110, 100, 114, 111, 105, 100, 0, 5, 54, 46, 48, 46, 49, 0, 5, 53, 46, 50, 46, 48, 0, 9, 49, 57, 50, 48, 42, 49, 48, 56, 48, 0, 5, 106, 100, 97, 112, 112, 0, 4, 119, 105, 102, 105, 0, 7, 48, 46, 48, 95, 48, 46, 48, 0, 27, 57, 57, 48, 48, 48, 54, 54, 50, 48, 48, 53, 52, 48, 51, 45, 48, 50, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 0, 0, 0, 1, 0, 5, 50, 46, 50, 46, 48, 0, 72, 0, 26, 0, 8, 79, 110, 101, 80, 108, 117, 115, 54, 0, 4, 79, 80, 80, 79, 0, 6, 80, 65, 67, 77, 48, 48, 0, 0];
    var rand = 42;
    var vl = v.length;
    console.log("vl:" + vl);
    var r5 = (vl + 10) % 8;
    console.log("r5:" + r5);

    if (r5)
        r5 = 8 - r5;
    var firstChar = rand & 0xFFFFFFF8 | r5;
    console.log("firstChar(v7):" + firstChar);
    var filln = (8 - (vl + 2)) % 8;
    filln += 2 + (filln < 0 ? 8 : 0);

    var array = [];
    //首位
    array.push(firstChar);
    //填充
    for (var j = 0, sum = filln; j < sum; j++) {
        array.push(rand);
    }
    //原文
    array = array.concat(v);
    //尾部填充的 7 字节的 \0
    array = array.concat([0, 0, 0, 0, 0, 0, 0]);
    v = array;
    var tr = [0, 0, 0, 0, 0, 0, 0, 0],
        to = tr,
        r = '',
        o = tr;
    vl = v.length;
    var result = [];
    for (var i = 0; i < vl; i += 8) {

        console.log("++++++++++++++++++++");
        var array1 = v.slice(i, i + 8);
        console.log("array1:" + array1);
        o = xor(array1, tr);
        // if (i == 0)
        //     o = array1;
        console.log("o:" + o);
        var enc = encipherArray(o, my_key_arr);
        console.log("enc:" + enc);
        tr = xor(enc, to);

        console.log('tr:' + tr);
        to = o;
        result = result.concat(tr);
        // console.log("result:"+result)
        r += tr;
    }

    for (var i = 0, length = result.length; i < length; i++) {
        var item = result[i];
        if (item > 128) {
            result[i] = item - 256;
        }
    }
    console.log("result:" + result);
    return result;
}


var my_key_arr = [555819297, 555819297, 555819297, 555819297];
test();