Function pack25519

vmm/src/x25519.js:143–166

(o, n)

        }
    }
    function pack25519(o, n) {
        var i, j, b;
        var m = gf(), t = gf();
        for (i = 0; i < 16; i++)
            t[i] = n[i];
        car25519(t);
        car25519(t);
        car25519(t);
        for (j = 0; j < 2; j++) {
            m[0] = t[0] - 0xffed;
            for (i = 1; i < 15; i++) {
                m[i] = t[i] - 0xffff - ((m[i - 1] >> 16) & 1);
                m[i - 1] &= 0xffff;
            }
            m[15] = t[15] - 0x7fff - ((m[14] >> 16) & 1);
            b = (m[15] >> 16) & 1;
            m[14] &= 0xffff;
            sel25519(t, m, 1 - b);
        }
        for (i = 0; i < 16; i++) {
            o[2 * i] = t[i] & 0xff;
            o[2 * i + 1] = t[i] >> 8;
        }
    }
    function neq25519(a, b) {
        var c = new Uint8Array(32), d = new Uint8Array(32);
        pack25519(c, a);