imoutai.js

var XORCipher = {
    encode: function (t, e) {
        return this.b64_encode(this.xor_encrypt(t, e))
    },
    decode: function (t, e) {
        return this.xor_decrypt(this.b64_decode(t),e)
    },
    b64_table: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
    b64_encode: function (t) {
        var e = 0,
            r = "";
        if (!t) return t;
        do {
            var h = t[e++],
                n = t[e++],
                i = t[e++],
                a = h << 16 | n << 8 | i;
            h = a >> 18 & 63, n = a >> 12 & 63, i = a >> 6 & 63, a &= 63, r += this.b64_table.charAt(h) + this.b64_table.charAt(n) + this.b64_table.charAt(i) + this.b64_table.charAt(a)
        } while (e < t.length);
        return ((t = t.length % 3) ? r.slice(0, t - 3) : r) + "===".slice(t || 3)
    },
    b64_decode: function (t) {
        var e = 0,
            r = [];
        if (!t) return t;
        t += "";
        do {
            var h = this.b64_table.indexOf(t.charAt(e++)),
                n = this.b64_table.indexOf(t.charAt(e++)),
                i = this.b64_table.indexOf(t.charAt(e++)),
                a = this.b64_table.indexOf(t.charAt(e++)),
                c = h << 18 | n << 12 | i << 6 | a;
            h = c >> 16 & 255, n = c >> 8 & 255, c &= 255, r.push(h), 64 !== i && (r.push(n), 64 !== a && r.push(c))
        } while (e < t.length);
        return r
    },
    keyCharAt: function (t, e) {
        return t.charCodeAt(Math.floor(e % t.length))
    },
    xor_encrypt: function (t,e) {
        char_array=Array.from(t)
        var sb=[]
        for(const c2 of char_array) {
            e^=c2.charCodeAt(0);
            sb.push(String.fromCharCode(e).charCodeAt(0))
        }
        return sb
    },
    xor_decrypt: function (t, e) {
        for (var r = [], h = 0; h < t.length; h++)
        {
            r.push(String.fromCharCode(e ^ t[h]));
            e=t[h]
        }
        return r.join("")
    }
};

function Encrypt(str){
    return XORCipher.encode(str,72)
}

function Decrypt(str){
    return XORCipher.decode(str,72)
}
console.log(Encrypt("2ff70f4f558d14973f074c0a9293b"))
console.log(Decrypt("ehx6TX0bL0l8SXEVJBApHi1Le0x4GytKc0F4Syk="))