function A() {
    var d = "";
    return d = r(16, 61), d
}

function r(e, t) {
    var n, a, i = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".split(""), r = [];
    if (t = t || i.length, e) {
        for (n = 0; n < e; n++) {
            r[n] = i[0 | Math.random() * t];
        }
    } else {
        for (r[8] = r[13] = r[18] = r[23] = "-", r[14] = "4", n = 0; n < 36; n++) {
            r[n] || (a = 0 | 16 * Math.random(), r[n] = i[19 == n ? 3 & a | 8 : a]);
        }
    }
    return r.join("")
}

function c(t) {
    let e = [];
    let n = 0;
    let r = t.length;
    for (; n < r; n += 2) {
        e.push(parseInt(t.substr(n, 2), 16));
    }
    return e
}

function f(t) {
    return t.map((function (t) {
            return t = t.toString(16), 1 === t.length ? "0" + t : t
        }
    )).join("")
}

function l(t) {
    for (var e = [], n = 0, r = t.length; n < r; n++) {
        var i = t.codePointAt(n);
        if (i <= 127) {
            e.push(i);
        } else if (i <= 2047) {
            e.push(192 | i >>> 6), e.push(128 | 63 & i);
        } else if (i <= 55295 || i >= 57344 && i <= 65535) {
            e.push(224 | i >>> 12), e.push(128 | i >>> 6 & 63), e.push(128 | 63 & i);
        } else {
            if (!(i >= 65536 && i <= 1114111)) {
                throw e.push(i), new Error("input is not supported");
            }
            n++, e.push(240 | i >>> 18 & 28), e.push(128 | i >>> 12 & 63), e.push(128 | i >>> 6 & 63), e.push(128 | 63 & i)
        }
    }
    return e
}

function h(t) {
    for (var e = [], n = 0, r = t.length; n < r; n++) {
        t[n] >= 240 && t[n] <= 247 ? (e.push(String.fromCodePoint(((7 & t[n]) << 18) + ((63 & t[n + 1]) << 12) + ((63 & t[n + 2]) << 6) + (63 & t[n + 3]))), n += 3) : t[n] >= 224 && t[n] <= 239 ? (e.push(String.fromCodePoint(((15 & t[n]) << 12) + ((63 & t[n + 1]) << 6) + (63 & t[n + 2]))), n += 2) : t[n] >= 192 && t[n] <= 223 ? (e.push(String.fromCodePoint(((31 & t[n]) << 6) + (63 & t[n + 1]))), n++) : e.push(String.fromCodePoint(t[n]));
    }
    return e.join("")
}

function d(t, e) {
    return t << e | t >>> 32 - e
}

function p(t) {
    var s = [214, 144, 233, 254, 204, 225, 61, 183, 22, 182, 20, 194, 40, 251, 44, 5, 43, 103, 154, 118, 42, 190, 4, 195, 170, 68, 19, 38, 73, 134, 6, 153, 156, 66, 80, 244, 145, 239, 152, 122, 51, 84, 11, 67, 237, 207, 172, 98, 228, 179, 28, 169, 201, 8, 232, 149, 128, 223, 148, 250, 117, 143, 63, 166, 71, 7, 167, 252, 243, 115, 23, 186, 131, 89, 60, 25, 230, 133, 79, 168, 104, 107, 129, 178, 113, 100, 218, 139, 248, 235, 15, 75, 112, 86, 157, 53, 30, 36, 14, 94, 99, 88, 209, 162, 37, 34, 124, 59, 1, 33, 120, 135, 212, 0, 70, 87, 159, 211, 39, 82, 76, 54, 2, 231, 160, 196, 200, 158, 234, 191, 138, 210, 64, 199, 56, 181, 163, 247, 242, 206, 249, 97, 21, 161, 224, 174, 93, 164, 155, 52, 26, 85, 173, 147, 50, 48, 245, 140, 177, 227, 29, 246, 226, 46, 130, 102, 202, 96, 192, 41, 35, 171, 13, 83, 78, 111, 213, 219, 55, 69, 222, 253, 142, 47, 3, 255, 106, 114, 109, 108, 91, 81, 141, 27, 175, 146, 187, 221, 188, 127, 17, 217, 92, 65, 31, 16, 90, 216, 10, 193, 49, 136, 165, 205, 123, 189, 45, 116, 208, 18, 184, 229, 180, 176, 137, 105, 151, 74, 12, 150, 119, 126, 101, 185, 241, 9, 197, 110, 198, 132, 24, 240, 125, 236, 58, 220, 77, 32, 121, 238, 95, 62, 215, 203, 57, 72];
    return (255 & s[t >>> 24 & 255]) << 24 | (255 & s[t >>> 16 & 255]) << 16 | (255 & s[t >>> 8 & 255]) << 8 | 255 & s[255 & t]
}

function v(t) {
    return t ^ d(t, 2) ^ d(t, 10) ^ d(t, 18) ^ d(t, 24)
}

function y(t) {
    return t ^ d(t, 13) ^ d(t, 23)
}

function g(t, e, n) {
    for (var r = new Array(4), i = new Array(4), o = 0; o < 4; o++) {
        i[0] = 255 & t[0 + 4 * o], i[1] = 255 & t[1 + 4 * o], i[2] = 255 & t[2 + 4 * o], i[3] = 255 & t[3 + 4 * o], r[o] = i[0] << 24 | i[1] << 16 | i[2] << 8 | i[3];
    }
    for (var a, s = 0; s < 32; s += 4) {
        a = r[1] ^ r[2] ^ r[3] ^ n[s + 0], r[0] ^= v(p(a)), a = r[2] ^ r[3] ^ r[0] ^ n[s + 1], r[1] ^= v(p(a)), a = r[3] ^ r[0] ^ r[1] ^ n[s + 2], r[2] ^= v(p(a)), a = r[0] ^ r[1] ^ r[2] ^ n[s + 3], r[3] ^= v(p(a));
    }

    for (var u = 0; u < 16; u += 4) {
        e[u] = r[3 - u / 4] >>> 24 & 255, e[u + 1] = r[3 - u / 4] >>> 16 & 255, e[u + 2] = r[3 - u / 4] >>> 8 & 255, e[u + 3] = 255 & r[3 - u / 4]
    }
}

function m(t, e, n) {
    var i = 0;
    var u = [462357, 472066609, 943670861, 1415275113, 1886879365, 2358483617, 2830087869, 3301692121, 3773296373, 4228057617, 404694573, 876298825, 1347903077, 1819507329, 2291111581, 2762715833, 3234320085, 3705924337, 4177462797, 337322537, 808926789, 1280531041, 1752135293, 2223739545, 2695343797, 3166948049, 3638552301, 4110090761, 269950501, 741554753, 1213159005, 1684763257];
    for (var r = new Array(4), o = new Array(4), a = 0; a < 4; a++) {
        o[0] = 255 & t[0 + 4 * a], o[1] = 255 & t[1 + 4 * a], o[2] = 255 & t[2 + 4 * a], o[3] = 255 & t[3 + 4 * a], r[a] = o[0] << 24 | o[1] << 16 | o[2] << 8 | o[3];
    }

    r[0] ^= 2746333894, r[1] ^= 1453994832, r[2] ^= 1736282519, r[3] ^= 2993693404;

    for (var s, c = 0; c < 32; c += 4) {
        s = r[1] ^ r[2] ^ r[3] ^ u[c + 0], e[c + 0] = r[0] ^= y(p(s)), s = r[2] ^ r[3] ^ r[0] ^ u[c + 1], e[c + 1] = r[1] ^= y(p(s)), s = r[3] ^ r[0] ^ r[1] ^ u[c + 2], e[c + 2] = r[2] ^= y(p(s)), s = r[0] ^ r[1] ^ r[2] ^ u[c + 3], e[c + 3] = r[3] ^= y(p(s));
    }

    if (n === i)
        for (var f, l = 0; l < 16; l++) {
            f = e[l], e[l] = e[31 - l], e[31 - l] = f
        }
}

function encrypt(t, e, n) {
    return b(t, e, 1, n)
}

function decrypt(t, e, n) {
    return b(t, e, 0, n)
}

function b(t, e, n) {
    var o = 32;
    var a = 16;
    var i = 0;
    var s = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : {}, u = s.padding,
        d = void 0 === u ? "pkcs#5" : u, p = (s.mode, s.output), v = void 0 === p ? "string" : p;
    if ("string" === typeof e && (e = c(e)), 16 !== e.length) {
        throw new Error("key is invalid");
    }

    if (t = "string" === typeof t ? n !== i ? l(t) : c(t) : r(t), "pkcs#5" === d && n !== i) {
        for (var y = a - t.length % a, b = 0; b < y; b++) {
            t.push(y);
        }
    }

    var _ = new Array(o);

    m(e, _, n);

    var w = [], x = t.length, k = 0;
    while (x >= a) {
        var A = t.slice(k, k + 16), S = new Array(16);
        g(A, S, _);
        for (var O = 0; O < a; O++) {
            w[k + O] = S[O];
        }
        x -= a, k += a
    }

    if ("pkcs#5" === d && n === i) {
        var E = w[w.length - 1];
        w.splice(w.length - E, E)
    }

    return "array" !== v ? n !== i ? f(w) : h(w) : w

}


// function sm2(jiamistr, publicKey, cipherMode) {
//     return sm.doEncrypt(jiamistr, publicKey, cipherMode);
// }


function De(t, e) {
    var n, c = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(""), u = [];
    if (e = e || c.length, t) {
        for (n = 0; QQfZW(n, t); n++) {
            u[n] = c[uApus(0, YcWyY(Math["random"](), e))];
        }
    }
    return u["join"]("")
}

function QQfZW(t, e) {
    return HpDDW(t, e)
}

function HpDDW(t, e) {
    return t < e
}

function uApus(t, e) {
    return Xefio(t, e)
}

function Xefio(t, e) {
    return t | e
}

function YcWyY(t, e) {
    return wlgCa(t, e)
}

function wlgCa(t, e) {
    return t * e
}

module.exports = {encrypt, decrypt, A}