Function crypto_hashblocks_hl

vmm/src/x25519.js:847–1171

(hh, hl, m, n)

        0x4a475817,
    ];
    function crypto_hashblocks_hl(hh, hl, m, n) {
        var wh = new Int32Array(16), wl = new Int32Array(16), bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7, bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7, th, tl, i, j, h, l, a, b, c, d;
        var ah0 = hh[0], ah1 = hh[1], ah2 = hh[2], ah3 = hh[3], ah4 = hh[4], ah5 = hh[5], ah6 = hh[6], ah7 = hh[7], al0 = hl[0], al1 = hl[1], al2 = hl[2], al3 = hl[3], al4 = hl[4], al5 = hl[5], al6 = hl[6], al7 = hl[7];
        var pos = 0;
        while (n >= 128) {
            for (i = 0; i < 16; i++) {
                j = 8 * i + pos;
                wh[i] = (m[j + 0] << 24) | (m[j + 1] << 16) | (m[j + 2] << 8) | m[j + 3];
                wl[i] = (m[j + 4] << 24) | (m[j + 5] << 16) | (m[j + 6] << 8) | m[j + 7];
            }
            for (i = 0; i < 80; i++) {
                bh0 = ah0;
                bh1 = ah1;
                bh2 = ah2;
                bh3 = ah3;
                bh4 = ah4;
                bh5 = ah5;
                bh6 = ah6;
                bh7 = ah7;
                bl0 = al0;
                bl1 = al1;
                bl2 = al2;
                bl3 = al3;
                bl4 = al4;
                bl5 = al5;
                bl6 = al6;
                bl7 = al7;
                // add
                h = ah7;
                l = al7;
                a = l & 0xffff;
                b = l >>> 16;
                c = h & 0xffff;
                d = h >>> 16;
                // Sigma1
                h =
                    ((ah4 >>> 14) | (al4 << (32 - 14))) ^
                    ((ah4 >>> 18) | (al4 << (32 - 18))) ^
                    ((al4 >>> (41 - 32)) | (ah4 << (32 - (41 - 32))));
                l =
                    ((al4 >>> 14) | (ah4 << (32 - 14))) ^
                    ((al4 >>> 18) | (ah4 << (32 - 18))) ^
                    ((ah4 >>> (41 - 32)) | (al4 << (32 - (41 - 32))));
                a += l & 0xffff;
                b += l >>> 16;
                c += h & 0xffff;
                d += h >>> 16;
                // Ch
                h = (ah4 & ah5) ^ (~ah4 & ah6);
                l = (al4 & al5) ^ (~al4 & al6);
                a += l & 0xffff;
                b += l >>> 16;
                c += h & 0xffff;
                d += h >>> 16;
                // K
                h = K[i * 2];
                l = K[i * 2 + 1];
                a += l & 0xffff;