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1051 lines
26 KiB
1051 lines
26 KiB
function vn(x, xi, y, yi, n) {
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var i,
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d = 0;
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for (i = 0; i < n; i++) d |= x[xi + i] ^ y[yi + i];
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return (1 & ((d - 1) >>> 8)) - 1;
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}
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function crypto_verify_16(x, xi, y, yi) {
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return vn(x, xi, y, yi, 16);
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}
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var crypto_secretbox_KEYBYTES = 32,
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crypto_secretbox_NONCEBYTES = 24,
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crypto_secretbox_ZEROBYTES = 32,
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crypto_secretbox_BOXZEROBYTES = 16,
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crypto_scalarmult_BYTES = 32,
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crypto_scalarmult_SCALARBYTES = 32,
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crypto_box_PUBLICKEYBYTES = 32,
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crypto_box_SECRETKEYBYTES = 32,
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crypto_box_BEFORENMBYTES = 32,
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crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
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crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
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crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
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crypto_sign_BYTES = 64,
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crypto_sign_PUBLICKEYBYTES = 32,
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crypto_sign_SECRETKEYBYTES = 64,
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crypto_sign_SEEDBYTES = 32,
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crypto_hash_BYTES = 64;
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function core_salsa20(o, p, k, c) {
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var j0 =
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(c[0] & 0xff) |
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((c[1] & 0xff) << 8) |
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((c[2] & 0xff) << 16) |
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((c[3] & 0xff) << 24),
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j1 =
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(k[0] & 0xff) |
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((k[1] & 0xff) << 8) |
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((k[2] & 0xff) << 16) |
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((k[3] & 0xff) << 24),
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j2 =
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(k[4] & 0xff) |
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((k[5] & 0xff) << 8) |
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((k[6] & 0xff) << 16) |
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((k[7] & 0xff) << 24),
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j3 =
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(k[8] & 0xff) |
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((k[9] & 0xff) << 8) |
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((k[10] & 0xff) << 16) |
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((k[11] & 0xff) << 24),
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j4 =
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(k[12] & 0xff) |
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((k[13] & 0xff) << 8) |
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((k[14] & 0xff) << 16) |
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((k[15] & 0xff) << 24),
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j5 =
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(c[4] & 0xff) |
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((c[5] & 0xff) << 8) |
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((c[6] & 0xff) << 16) |
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((c[7] & 0xff) << 24),
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j6 =
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(p[0] & 0xff) |
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((p[1] & 0xff) << 8) |
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((p[2] & 0xff) << 16) |
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((p[3] & 0xff) << 24),
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j7 =
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(p[4] & 0xff) |
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((p[5] & 0xff) << 8) |
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((p[6] & 0xff) << 16) |
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((p[7] & 0xff) << 24),
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j8 =
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(p[8] & 0xff) |
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((p[9] & 0xff) << 8) |
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((p[10] & 0xff) << 16) |
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((p[11] & 0xff) << 24),
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j9 =
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(p[12] & 0xff) |
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((p[13] & 0xff) << 8) |
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((p[14] & 0xff) << 16) |
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((p[15] & 0xff) << 24),
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j10 =
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(c[8] & 0xff) |
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((c[9] & 0xff) << 8) |
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((c[10] & 0xff) << 16) |
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((c[11] & 0xff) << 24),
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j11 =
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(k[16] & 0xff) |
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((k[17] & 0xff) << 8) |
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((k[18] & 0xff) << 16) |
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((k[19] & 0xff) << 24),
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j12 =
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(k[20] & 0xff) |
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((k[21] & 0xff) << 8) |
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((k[22] & 0xff) << 16) |
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((k[23] & 0xff) << 24),
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j13 =
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(k[24] & 0xff) |
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((k[25] & 0xff) << 8) |
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((k[26] & 0xff) << 16) |
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((k[27] & 0xff) << 24),
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j14 =
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(k[28] & 0xff) |
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((k[29] & 0xff) << 8) |
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((k[30] & 0xff) << 16) |
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((k[31] & 0xff) << 24),
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j15 =
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(c[12] & 0xff) |
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((c[13] & 0xff) << 8) |
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((c[14] & 0xff) << 16) |
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((c[15] & 0xff) << 24);
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var x0 = j0,
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x1 = j1,
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x2 = j2,
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x3 = j3,
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x4 = j4,
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x5 = j5,
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x6 = j6,
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x7 = j7,
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x8 = j8,
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x9 = j9,
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x10 = j10,
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x11 = j11,
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x12 = j12,
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x13 = j13,
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x14 = j14,
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x15 = j15,
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u;
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for (var i = 0; i < 20; i += 2) {
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u = (x0 + x12) | 0;
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x4 ^= (u << 7) | (u >>> (32 - 7));
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u = (x4 + x0) | 0;
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x8 ^= (u << 9) | (u >>> (32 - 9));
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u = (x8 + x4) | 0;
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x12 ^= (u << 13) | (u >>> (32 - 13));
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u = (x12 + x8) | 0;
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x0 ^= (u << 18) | (u >>> (32 - 18));
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u = (x5 + x1) | 0;
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x9 ^= (u << 7) | (u >>> (32 - 7));
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u = (x9 + x5) | 0;
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x13 ^= (u << 9) | (u >>> (32 - 9));
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u = (x13 + x9) | 0;
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x1 ^= (u << 13) | (u >>> (32 - 13));
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u = (x1 + x13) | 0;
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x5 ^= (u << 18) | (u >>> (32 - 18));
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u = (x10 + x6) | 0;
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x14 ^= (u << 7) | (u >>> (32 - 7));
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u = (x14 + x10) | 0;
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x2 ^= (u << 9) | (u >>> (32 - 9));
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u = (x2 + x14) | 0;
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x6 ^= (u << 13) | (u >>> (32 - 13));
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u = (x6 + x2) | 0;
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x10 ^= (u << 18) | (u >>> (32 - 18));
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u = (x15 + x11) | 0;
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x3 ^= (u << 7) | (u >>> (32 - 7));
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u = (x3 + x15) | 0;
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x7 ^= (u << 9) | (u >>> (32 - 9));
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u = (x7 + x3) | 0;
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x11 ^= (u << 13) | (u >>> (32 - 13));
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u = (x11 + x7) | 0;
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x15 ^= (u << 18) | (u >>> (32 - 18));
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u = (x0 + x3) | 0;
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x1 ^= (u << 7) | (u >>> (32 - 7));
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u = (x1 + x0) | 0;
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x2 ^= (u << 9) | (u >>> (32 - 9));
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u = (x2 + x1) | 0;
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x3 ^= (u << 13) | (u >>> (32 - 13));
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u = (x3 + x2) | 0;
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x0 ^= (u << 18) | (u >>> (32 - 18));
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u = (x5 + x4) | 0;
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x6 ^= (u << 7) | (u >>> (32 - 7));
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u = (x6 + x5) | 0;
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x7 ^= (u << 9) | (u >>> (32 - 9));
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u = (x7 + x6) | 0;
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x4 ^= (u << 13) | (u >>> (32 - 13));
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u = (x4 + x7) | 0;
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x5 ^= (u << 18) | (u >>> (32 - 18));
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u = (x10 + x9) | 0;
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x11 ^= (u << 7) | (u >>> (32 - 7));
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u = (x11 + x10) | 0;
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x8 ^= (u << 9) | (u >>> (32 - 9));
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u = (x8 + x11) | 0;
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x9 ^= (u << 13) | (u >>> (32 - 13));
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u = (x9 + x8) | 0;
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x10 ^= (u << 18) | (u >>> (32 - 18));
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u = (x15 + x14) | 0;
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x12 ^= (u << 7) | (u >>> (32 - 7));
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u = (x12 + x15) | 0;
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x13 ^= (u << 9) | (u >>> (32 - 9));
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u = (x13 + x12) | 0;
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x14 ^= (u << 13) | (u >>> (32 - 13));
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u = (x14 + x13) | 0;
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x15 ^= (u << 18) | (u >>> (32 - 18));
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}
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x0 = (x0 + j0) | 0;
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x1 = (x1 + j1) | 0;
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x2 = (x2 + j2) | 0;
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x3 = (x3 + j3) | 0;
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x4 = (x4 + j4) | 0;
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x5 = (x5 + j5) | 0;
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x6 = (x6 + j6) | 0;
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x7 = (x7 + j7) | 0;
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x8 = (x8 + j8) | 0;
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x9 = (x9 + j9) | 0;
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x10 = (x10 + j10) | 0;
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x11 = (x11 + j11) | 0;
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x12 = (x12 + j12) | 0;
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x13 = (x13 + j13) | 0;
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x14 = (x14 + j14) | 0;
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x15 = (x15 + j15) | 0;
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o[0] = (x0 >>> 0) & 0xff;
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o[1] = (x0 >>> 8) & 0xff;
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o[2] = (x0 >>> 16) & 0xff;
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o[3] = (x0 >>> 24) & 0xff;
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o[4] = (x1 >>> 0) & 0xff;
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o[5] = (x1 >>> 8) & 0xff;
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o[6] = (x1 >>> 16) & 0xff;
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o[7] = (x1 >>> 24) & 0xff;
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o[8] = (x2 >>> 0) & 0xff;
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o[9] = (x2 >>> 8) & 0xff;
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o[10] = (x2 >>> 16) & 0xff;
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o[11] = (x2 >>> 24) & 0xff;
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o[12] = (x3 >>> 0) & 0xff;
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o[13] = (x3 >>> 8) & 0xff;
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o[14] = (x3 >>> 16) & 0xff;
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o[15] = (x3 >>> 24) & 0xff;
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o[16] = (x4 >>> 0) & 0xff;
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o[17] = (x4 >>> 8) & 0xff;
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o[18] = (x4 >>> 16) & 0xff;
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o[19] = (x4 >>> 24) & 0xff;
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o[20] = (x5 >>> 0) & 0xff;
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o[21] = (x5 >>> 8) & 0xff;
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o[22] = (x5 >>> 16) & 0xff;
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o[23] = (x5 >>> 24) & 0xff;
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o[24] = (x6 >>> 0) & 0xff;
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o[25] = (x6 >>> 8) & 0xff;
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o[26] = (x6 >>> 16) & 0xff;
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o[27] = (x6 >>> 24) & 0xff;
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o[28] = (x7 >>> 0) & 0xff;
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o[29] = (x7 >>> 8) & 0xff;
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o[30] = (x7 >>> 16) & 0xff;
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o[31] = (x7 >>> 24) & 0xff;
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o[32] = (x8 >>> 0) & 0xff;
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o[33] = (x8 >>> 8) & 0xff;
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o[34] = (x8 >>> 16) & 0xff;
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o[35] = (x8 >>> 24) & 0xff;
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o[36] = (x9 >>> 0) & 0xff;
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o[37] = (x9 >>> 8) & 0xff;
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o[38] = (x9 >>> 16) & 0xff;
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o[39] = (x9 >>> 24) & 0xff;
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o[40] = (x10 >>> 0) & 0xff;
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o[41] = (x10 >>> 8) & 0xff;
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o[42] = (x10 >>> 16) & 0xff;
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o[43] = (x10 >>> 24) & 0xff;
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o[44] = (x11 >>> 0) & 0xff;
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o[45] = (x11 >>> 8) & 0xff;
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o[46] = (x11 >>> 16) & 0xff;
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o[47] = (x11 >>> 24) & 0xff;
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o[48] = (x12 >>> 0) & 0xff;
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o[49] = (x12 >>> 8) & 0xff;
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o[50] = (x12 >>> 16) & 0xff;
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o[51] = (x12 >>> 24) & 0xff;
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o[52] = (x13 >>> 0) & 0xff;
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o[53] = (x13 >>> 8) & 0xff;
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o[54] = (x13 >>> 16) & 0xff;
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o[55] = (x13 >>> 24) & 0xff;
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o[56] = (x14 >>> 0) & 0xff;
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o[57] = (x14 >>> 8) & 0xff;
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o[58] = (x14 >>> 16) & 0xff;
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o[59] = (x14 >>> 24) & 0xff;
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o[60] = (x15 >>> 0) & 0xff;
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o[61] = (x15 >>> 8) & 0xff;
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o[62] = (x15 >>> 16) & 0xff;
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o[63] = (x15 >>> 24) & 0xff;
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}
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function core_hsalsa20(o, p, k, c) {
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var j0 =
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(c[0] & 0xff) |
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((c[1] & 0xff) << 8) |
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((c[2] & 0xff) << 16) |
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((c[3] & 0xff) << 24),
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j1 =
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(k[0] & 0xff) |
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((k[1] & 0xff) << 8) |
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((k[2] & 0xff) << 16) |
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((k[3] & 0xff) << 24),
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j2 =
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(k[4] & 0xff) |
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((k[5] & 0xff) << 8) |
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((k[6] & 0xff) << 16) |
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((k[7] & 0xff) << 24),
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j3 =
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(k[8] & 0xff) |
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((k[9] & 0xff) << 8) |
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((k[10] & 0xff) << 16) |
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((k[11] & 0xff) << 24),
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j4 =
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(k[12] & 0xff) |
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((k[13] & 0xff) << 8) |
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((k[14] & 0xff) << 16) |
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((k[15] & 0xff) << 24),
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j5 =
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(c[4] & 0xff) |
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((c[5] & 0xff) << 8) |
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((c[6] & 0xff) << 16) |
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((c[7] & 0xff) << 24),
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j6 =
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(p[0] & 0xff) |
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((p[1] & 0xff) << 8) |
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((p[2] & 0xff) << 16) |
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((p[3] & 0xff) << 24),
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j7 =
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(p[4] & 0xff) |
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((p[5] & 0xff) << 8) |
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((p[6] & 0xff) << 16) |
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((p[7] & 0xff) << 24),
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j8 =
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(p[8] & 0xff) |
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((p[9] & 0xff) << 8) |
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((p[10] & 0xff) << 16) |
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((p[11] & 0xff) << 24),
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j9 =
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(p[12] & 0xff) |
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((p[13] & 0xff) << 8) |
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((p[14] & 0xff) << 16) |
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((p[15] & 0xff) << 24),
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j10 =
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(c[8] & 0xff) |
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((c[9] & 0xff) << 8) |
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((c[10] & 0xff) << 16) |
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((c[11] & 0xff) << 24),
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j11 =
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(k[16] & 0xff) |
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((k[17] & 0xff) << 8) |
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((k[18] & 0xff) << 16) |
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((k[19] & 0xff) << 24),
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j12 =
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(k[20] & 0xff) |
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((k[21] & 0xff) << 8) |
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((k[22] & 0xff) << 16) |
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((k[23] & 0xff) << 24),
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j13 =
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(k[24] & 0xff) |
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((k[25] & 0xff) << 8) |
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((k[26] & 0xff) << 16) |
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((k[27] & 0xff) << 24),
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j14 =
|
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(k[28] & 0xff) |
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((k[29] & 0xff) << 8) |
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((k[30] & 0xff) << 16) |
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((k[31] & 0xff) << 24),
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j15 =
|
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(c[12] & 0xff) |
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((c[13] & 0xff) << 8) |
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((c[14] & 0xff) << 16) |
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((c[15] & 0xff) << 24);
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var x0 = j0,
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x1 = j1,
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x2 = j2,
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x3 = j3,
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x4 = j4,
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x5 = j5,
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x6 = j6,
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x7 = j7,
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x8 = j8,
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x9 = j9,
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x10 = j10,
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x11 = j11,
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x12 = j12,
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x13 = j13,
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x14 = j14,
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x15 = j15,
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u;
|
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|
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for (var i = 0; i < 20; i += 2) {
|
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u = (x0 + x12) | 0;
|
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x4 ^= (u << 7) | (u >>> (32 - 7));
|
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u = (x4 + x0) | 0;
|
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x8 ^= (u << 9) | (u >>> (32 - 9));
|
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u = (x8 + x4) | 0;
|
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x12 ^= (u << 13) | (u >>> (32 - 13));
|
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u = (x12 + x8) | 0;
|
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x0 ^= (u << 18) | (u >>> (32 - 18));
|
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|
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u = (x5 + x1) | 0;
|
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x9 ^= (u << 7) | (u >>> (32 - 7));
|
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u = (x9 + x5) | 0;
|
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x13 ^= (u << 9) | (u >>> (32 - 9));
|
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u = (x13 + x9) | 0;
|
|
x1 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x1 + x13) | 0;
|
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x5 ^= (u << 18) | (u >>> (32 - 18));
|
|
|
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u = (x10 + x6) | 0;
|
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x14 ^= (u << 7) | (u >>> (32 - 7));
|
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u = (x14 + x10) | 0;
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x2 ^= (u << 9) | (u >>> (32 - 9));
|
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u = (x2 + x14) | 0;
|
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x6 ^= (u << 13) | (u >>> (32 - 13));
|
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u = (x6 + x2) | 0;
|
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x10 ^= (u << 18) | (u >>> (32 - 18));
|
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|
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u = (x15 + x11) | 0;
|
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x3 ^= (u << 7) | (u >>> (32 - 7));
|
|
u = (x3 + x15) | 0;
|
|
x7 ^= (u << 9) | (u >>> (32 - 9));
|
|
u = (x7 + x3) | 0;
|
|
x11 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x11 + x7) | 0;
|
|
x15 ^= (u << 18) | (u >>> (32 - 18));
|
|
|
|
u = (x0 + x3) | 0;
|
|
x1 ^= (u << 7) | (u >>> (32 - 7));
|
|
u = (x1 + x0) | 0;
|
|
x2 ^= (u << 9) | (u >>> (32 - 9));
|
|
u = (x2 + x1) | 0;
|
|
x3 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x3 + x2) | 0;
|
|
x0 ^= (u << 18) | (u >>> (32 - 18));
|
|
|
|
u = (x5 + x4) | 0;
|
|
x6 ^= (u << 7) | (u >>> (32 - 7));
|
|
u = (x6 + x5) | 0;
|
|
x7 ^= (u << 9) | (u >>> (32 - 9));
|
|
u = (x7 + x6) | 0;
|
|
x4 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x4 + x7) | 0;
|
|
x5 ^= (u << 18) | (u >>> (32 - 18));
|
|
|
|
u = (x10 + x9) | 0;
|
|
x11 ^= (u << 7) | (u >>> (32 - 7));
|
|
u = (x11 + x10) | 0;
|
|
x8 ^= (u << 9) | (u >>> (32 - 9));
|
|
u = (x8 + x11) | 0;
|
|
x9 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x9 + x8) | 0;
|
|
x10 ^= (u << 18) | (u >>> (32 - 18));
|
|
|
|
u = (x15 + x14) | 0;
|
|
x12 ^= (u << 7) | (u >>> (32 - 7));
|
|
u = (x12 + x15) | 0;
|
|
x13 ^= (u << 9) | (u >>> (32 - 9));
|
|
u = (x13 + x12) | 0;
|
|
x14 ^= (u << 13) | (u >>> (32 - 13));
|
|
u = (x14 + x13) | 0;
|
|
x15 ^= (u << 18) | (u >>> (32 - 18));
|
|
}
|
|
|
|
o[0] = (x0 >>> 0) & 0xff;
|
|
o[1] = (x0 >>> 8) & 0xff;
|
|
o[2] = (x0 >>> 16) & 0xff;
|
|
o[3] = (x0 >>> 24) & 0xff;
|
|
|
|
o[4] = (x5 >>> 0) & 0xff;
|
|
o[5] = (x5 >>> 8) & 0xff;
|
|
o[6] = (x5 >>> 16) & 0xff;
|
|
o[7] = (x5 >>> 24) & 0xff;
|
|
|
|
o[8] = (x10 >>> 0) & 0xff;
|
|
o[9] = (x10 >>> 8) & 0xff;
|
|
o[10] = (x10 >>> 16) & 0xff;
|
|
o[11] = (x10 >>> 24) & 0xff;
|
|
|
|
o[12] = (x15 >>> 0) & 0xff;
|
|
o[13] = (x15 >>> 8) & 0xff;
|
|
o[14] = (x15 >>> 16) & 0xff;
|
|
o[15] = (x15 >>> 24) & 0xff;
|
|
|
|
o[16] = (x6 >>> 0) & 0xff;
|
|
o[17] = (x6 >>> 8) & 0xff;
|
|
o[18] = (x6 >>> 16) & 0xff;
|
|
o[19] = (x6 >>> 24) & 0xff;
|
|
|
|
o[20] = (x7 >>> 0) & 0xff;
|
|
o[21] = (x7 >>> 8) & 0xff;
|
|
o[22] = (x7 >>> 16) & 0xff;
|
|
o[23] = (x7 >>> 24) & 0xff;
|
|
|
|
o[24] = (x8 >>> 0) & 0xff;
|
|
o[25] = (x8 >>> 8) & 0xff;
|
|
o[26] = (x8 >>> 16) & 0xff;
|
|
o[27] = (x8 >>> 24) & 0xff;
|
|
|
|
o[28] = (x9 >>> 0) & 0xff;
|
|
o[29] = (x9 >>> 8) & 0xff;
|
|
o[30] = (x9 >>> 16) & 0xff;
|
|
o[31] = (x9 >>> 24) & 0xff;
|
|
}
|
|
|
|
function crypto_core_salsa20(out, inp, k, c) {
|
|
core_salsa20(out, inp, k, c);
|
|
}
|
|
|
|
function crypto_core_hsalsa20(out, inp, k, c) {
|
|
core_hsalsa20(out, inp, k, c);
|
|
}
|
|
|
|
var sigma = new Uint8Array([
|
|
101, 120, 112, 97, 110, 100, 32, 51, 50, 45, 98, 121, 116, 101, 32, 107,
|
|
]);
|
|
// "expand 32-byte k"
|
|
|
|
function crypto_stream_salsa20_xor(c, cpos, m, mpos, b, n, k) {
|
|
var z = new Uint8Array(16),
|
|
x = new Uint8Array(64);
|
|
var u, i;
|
|
for (i = 0; i < 16; i++) z[i] = 0;
|
|
for (i = 0; i < 8; i++) z[i] = n[i];
|
|
while (b >= 64) {
|
|
crypto_core_salsa20(x, z, k, sigma);
|
|
for (i = 0; i < 64; i++) c[cpos + i] = m[mpos + i] ^ x[i];
|
|
u = 1;
|
|
for (i = 8; i < 16; i++) {
|
|
u = (u + (z[i] & 0xff)) | 0;
|
|
z[i] = u & 0xff;
|
|
u >>>= 8;
|
|
}
|
|
b -= 64;
|
|
cpos += 64;
|
|
mpos += 64;
|
|
}
|
|
if (b > 0) {
|
|
crypto_core_salsa20(x, z, k, sigma);
|
|
for (i = 0; i < b; i++) c[cpos + i] = m[mpos + i] ^ x[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
function crypto_stream_salsa20(c, cpos, b, n, k) {
|
|
var z = new Uint8Array(16),
|
|
x = new Uint8Array(64);
|
|
var u, i;
|
|
for (i = 0; i < 16; i++) z[i] = 0;
|
|
for (i = 0; i < 8; i++) z[i] = n[i];
|
|
while (b >= 64) {
|
|
crypto_core_salsa20(x, z, k, sigma);
|
|
for (i = 0; i < 64; i++) c[cpos + i] = x[i];
|
|
u = 1;
|
|
for (i = 8; i < 16; i++) {
|
|
u = (u + (z[i] & 0xff)) | 0;
|
|
z[i] = u & 0xff;
|
|
u >>>= 8;
|
|
}
|
|
b -= 64;
|
|
cpos += 64;
|
|
}
|
|
if (b > 0) {
|
|
crypto_core_salsa20(x, z, k, sigma);
|
|
for (i = 0; i < b; i++) c[cpos + i] = x[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
var poly1305 = function (key) {
|
|
this.buffer = new Uint8Array(16);
|
|
this.r = new Uint16Array(10);
|
|
this.h = new Uint16Array(10);
|
|
this.pad = new Uint16Array(8);
|
|
this.leftover = 0;
|
|
this.fin = 0;
|
|
|
|
var t0, t1, t2, t3, t4, t5, t6, t7;
|
|
|
|
t0 = (key[0] & 0xff) | ((key[1] & 0xff) << 8);
|
|
this.r[0] = t0 & 0x1fff;
|
|
t1 = (key[2] & 0xff) | ((key[3] & 0xff) << 8);
|
|
this.r[1] = ((t0 >>> 13) | (t1 << 3)) & 0x1fff;
|
|
t2 = (key[4] & 0xff) | ((key[5] & 0xff) << 8);
|
|
this.r[2] = ((t1 >>> 10) | (t2 << 6)) & 0x1f03;
|
|
t3 = (key[6] & 0xff) | ((key[7] & 0xff) << 8);
|
|
this.r[3] = ((t2 >>> 7) | (t3 << 9)) & 0x1fff;
|
|
t4 = (key[8] & 0xff) | ((key[9] & 0xff) << 8);
|
|
this.r[4] = ((t3 >>> 4) | (t4 << 12)) & 0x00ff;
|
|
this.r[5] = (t4 >>> 1) & 0x1ffe;
|
|
t5 = (key[10] & 0xff) | ((key[11] & 0xff) << 8);
|
|
this.r[6] = ((t4 >>> 14) | (t5 << 2)) & 0x1fff;
|
|
t6 = (key[12] & 0xff) | ((key[13] & 0xff) << 8);
|
|
this.r[7] = ((t5 >>> 11) | (t6 << 5)) & 0x1f81;
|
|
t7 = (key[14] & 0xff) | ((key[15] & 0xff) << 8);
|
|
this.r[8] = ((t6 >>> 8) | (t7 << 8)) & 0x1fff;
|
|
this.r[9] = (t7 >>> 5) & 0x007f;
|
|
|
|
this.pad[0] = (key[16] & 0xff) | ((key[17] & 0xff) << 8);
|
|
this.pad[1] = (key[18] & 0xff) | ((key[19] & 0xff) << 8);
|
|
this.pad[2] = (key[20] & 0xff) | ((key[21] & 0xff) << 8);
|
|
this.pad[3] = (key[22] & 0xff) | ((key[23] & 0xff) << 8);
|
|
this.pad[4] = (key[24] & 0xff) | ((key[25] & 0xff) << 8);
|
|
this.pad[5] = (key[26] & 0xff) | ((key[27] & 0xff) << 8);
|
|
this.pad[6] = (key[28] & 0xff) | ((key[29] & 0xff) << 8);
|
|
this.pad[7] = (key[30] & 0xff) | ((key[31] & 0xff) << 8);
|
|
};
|
|
|
|
poly1305.prototype.blocks = function (m, mpos, bytes) {
|
|
var hibit = this.fin ? 0 : 1 << 11;
|
|
var t0, t1, t2, t3, t4, t5, t6, t7, c;
|
|
var d0, d1, d2, d3, d4, d5, d6, d7, d8, d9;
|
|
|
|
var h0 = this.h[0],
|
|
h1 = this.h[1],
|
|
h2 = this.h[2],
|
|
h3 = this.h[3],
|
|
h4 = this.h[4],
|
|
h5 = this.h[5],
|
|
h6 = this.h[6],
|
|
h7 = this.h[7],
|
|
h8 = this.h[8],
|
|
h9 = this.h[9];
|
|
|
|
var r0 = this.r[0],
|
|
r1 = this.r[1],
|
|
r2 = this.r[2],
|
|
r3 = this.r[3],
|
|
r4 = this.r[4],
|
|
r5 = this.r[5],
|
|
r6 = this.r[6],
|
|
r7 = this.r[7],
|
|
r8 = this.r[8],
|
|
r9 = this.r[9];
|
|
|
|
while (bytes >= 16) {
|
|
t0 = (m[mpos + 0] & 0xff) | ((m[mpos + 1] & 0xff) << 8);
|
|
h0 += t0 & 0x1fff;
|
|
t1 = (m[mpos + 2] & 0xff) | ((m[mpos + 3] & 0xff) << 8);
|
|
h1 += ((t0 >>> 13) | (t1 << 3)) & 0x1fff;
|
|
t2 = (m[mpos + 4] & 0xff) | ((m[mpos + 5] & 0xff) << 8);
|
|
h2 += ((t1 >>> 10) | (t2 << 6)) & 0x1fff;
|
|
t3 = (m[mpos + 6] & 0xff) | ((m[mpos + 7] & 0xff) << 8);
|
|
h3 += ((t2 >>> 7) | (t3 << 9)) & 0x1fff;
|
|
t4 = (m[mpos + 8] & 0xff) | ((m[mpos + 9] & 0xff) << 8);
|
|
h4 += ((t3 >>> 4) | (t4 << 12)) & 0x1fff;
|
|
h5 += (t4 >>> 1) & 0x1fff;
|
|
t5 = (m[mpos + 10] & 0xff) | ((m[mpos + 11] & 0xff) << 8);
|
|
h6 += ((t4 >>> 14) | (t5 << 2)) & 0x1fff;
|
|
t6 = (m[mpos + 12] & 0xff) | ((m[mpos + 13] & 0xff) << 8);
|
|
h7 += ((t5 >>> 11) | (t6 << 5)) & 0x1fff;
|
|
t7 = (m[mpos + 14] & 0xff) | ((m[mpos + 15] & 0xff) << 8);
|
|
h8 += ((t6 >>> 8) | (t7 << 8)) & 0x1fff;
|
|
h9 += (t7 >>> 5) | hibit;
|
|
|
|
c = 0;
|
|
|
|
d0 = c;
|
|
d0 += h0 * r0;
|
|
d0 += h1 * (5 * r9);
|
|
d0 += h2 * (5 * r8);
|
|
d0 += h3 * (5 * r7);
|
|
d0 += h4 * (5 * r6);
|
|
c = d0 >>> 13;
|
|
d0 &= 0x1fff;
|
|
d0 += h5 * (5 * r5);
|
|
d0 += h6 * (5 * r4);
|
|
d0 += h7 * (5 * r3);
|
|
d0 += h8 * (5 * r2);
|
|
d0 += h9 * (5 * r1);
|
|
c += d0 >>> 13;
|
|
d0 &= 0x1fff;
|
|
|
|
d1 = c;
|
|
d1 += h0 * r1;
|
|
d1 += h1 * r0;
|
|
d1 += h2 * (5 * r9);
|
|
d1 += h3 * (5 * r8);
|
|
d1 += h4 * (5 * r7);
|
|
c = d1 >>> 13;
|
|
d1 &= 0x1fff;
|
|
d1 += h5 * (5 * r6);
|
|
d1 += h6 * (5 * r5);
|
|
d1 += h7 * (5 * r4);
|
|
d1 += h8 * (5 * r3);
|
|
d1 += h9 * (5 * r2);
|
|
c += d1 >>> 13;
|
|
d1 &= 0x1fff;
|
|
|
|
d2 = c;
|
|
d2 += h0 * r2;
|
|
d2 += h1 * r1;
|
|
d2 += h2 * r0;
|
|
d2 += h3 * (5 * r9);
|
|
d2 += h4 * (5 * r8);
|
|
c = d2 >>> 13;
|
|
d2 &= 0x1fff;
|
|
d2 += h5 * (5 * r7);
|
|
d2 += h6 * (5 * r6);
|
|
d2 += h7 * (5 * r5);
|
|
d2 += h8 * (5 * r4);
|
|
d2 += h9 * (5 * r3);
|
|
c += d2 >>> 13;
|
|
d2 &= 0x1fff;
|
|
|
|
d3 = c;
|
|
d3 += h0 * r3;
|
|
d3 += h1 * r2;
|
|
d3 += h2 * r1;
|
|
d3 += h3 * r0;
|
|
d3 += h4 * (5 * r9);
|
|
c = d3 >>> 13;
|
|
d3 &= 0x1fff;
|
|
d3 += h5 * (5 * r8);
|
|
d3 += h6 * (5 * r7);
|
|
d3 += h7 * (5 * r6);
|
|
d3 += h8 * (5 * r5);
|
|
d3 += h9 * (5 * r4);
|
|
c += d3 >>> 13;
|
|
d3 &= 0x1fff;
|
|
|
|
d4 = c;
|
|
d4 += h0 * r4;
|
|
d4 += h1 * r3;
|
|
d4 += h2 * r2;
|
|
d4 += h3 * r1;
|
|
d4 += h4 * r0;
|
|
c = d4 >>> 13;
|
|
d4 &= 0x1fff;
|
|
d4 += h5 * (5 * r9);
|
|
d4 += h6 * (5 * r8);
|
|
d4 += h7 * (5 * r7);
|
|
d4 += h8 * (5 * r6);
|
|
d4 += h9 * (5 * r5);
|
|
c += d4 >>> 13;
|
|
d4 &= 0x1fff;
|
|
|
|
d5 = c;
|
|
d5 += h0 * r5;
|
|
d5 += h1 * r4;
|
|
d5 += h2 * r3;
|
|
d5 += h3 * r2;
|
|
d5 += h4 * r1;
|
|
c = d5 >>> 13;
|
|
d5 &= 0x1fff;
|
|
d5 += h5 * r0;
|
|
d5 += h6 * (5 * r9);
|
|
d5 += h7 * (5 * r8);
|
|
d5 += h8 * (5 * r7);
|
|
d5 += h9 * (5 * r6);
|
|
c += d5 >>> 13;
|
|
d5 &= 0x1fff;
|
|
|
|
d6 = c;
|
|
d6 += h0 * r6;
|
|
d6 += h1 * r5;
|
|
d6 += h2 * r4;
|
|
d6 += h3 * r3;
|
|
d6 += h4 * r2;
|
|
c = d6 >>> 13;
|
|
d6 &= 0x1fff;
|
|
d6 += h5 * r1;
|
|
d6 += h6 * r0;
|
|
d6 += h7 * (5 * r9);
|
|
d6 += h8 * (5 * r8);
|
|
d6 += h9 * (5 * r7);
|
|
c += d6 >>> 13;
|
|
d6 &= 0x1fff;
|
|
|
|
d7 = c;
|
|
d7 += h0 * r7;
|
|
d7 += h1 * r6;
|
|
d7 += h2 * r5;
|
|
d7 += h3 * r4;
|
|
d7 += h4 * r3;
|
|
c = d7 >>> 13;
|
|
d7 &= 0x1fff;
|
|
d7 += h5 * r2;
|
|
d7 += h6 * r1;
|
|
d7 += h7 * r0;
|
|
d7 += h8 * (5 * r9);
|
|
d7 += h9 * (5 * r8);
|
|
c += d7 >>> 13;
|
|
d7 &= 0x1fff;
|
|
|
|
d8 = c;
|
|
d8 += h0 * r8;
|
|
d8 += h1 * r7;
|
|
d8 += h2 * r6;
|
|
d8 += h3 * r5;
|
|
d8 += h4 * r4;
|
|
c = d8 >>> 13;
|
|
d8 &= 0x1fff;
|
|
d8 += h5 * r3;
|
|
d8 += h6 * r2;
|
|
d8 += h7 * r1;
|
|
d8 += h8 * r0;
|
|
d8 += h9 * (5 * r9);
|
|
c += d8 >>> 13;
|
|
d8 &= 0x1fff;
|
|
|
|
d9 = c;
|
|
d9 += h0 * r9;
|
|
d9 += h1 * r8;
|
|
d9 += h2 * r7;
|
|
d9 += h3 * r6;
|
|
d9 += h4 * r5;
|
|
c = d9 >>> 13;
|
|
d9 &= 0x1fff;
|
|
d9 += h5 * r4;
|
|
d9 += h6 * r3;
|
|
d9 += h7 * r2;
|
|
d9 += h8 * r1;
|
|
d9 += h9 * r0;
|
|
c += d9 >>> 13;
|
|
d9 &= 0x1fff;
|
|
|
|
c = ((c << 2) + c) | 0;
|
|
c = (c + d0) | 0;
|
|
d0 = c & 0x1fff;
|
|
c = c >>> 13;
|
|
d1 += c;
|
|
|
|
h0 = d0;
|
|
h1 = d1;
|
|
h2 = d2;
|
|
h3 = d3;
|
|
h4 = d4;
|
|
h5 = d5;
|
|
h6 = d6;
|
|
h7 = d7;
|
|
h8 = d8;
|
|
h9 = d9;
|
|
|
|
mpos += 16;
|
|
bytes -= 16;
|
|
}
|
|
this.h[0] = h0;
|
|
this.h[1] = h1;
|
|
this.h[2] = h2;
|
|
this.h[3] = h3;
|
|
this.h[4] = h4;
|
|
this.h[5] = h5;
|
|
this.h[6] = h6;
|
|
this.h[7] = h7;
|
|
this.h[8] = h8;
|
|
this.h[9] = h9;
|
|
};
|
|
|
|
poly1305.prototype.finish = function (mac, macpos) {
|
|
var g = new Uint16Array(10);
|
|
var c, mask, f, i;
|
|
|
|
if (this.leftover) {
|
|
i = this.leftover;
|
|
this.buffer[i++] = 1;
|
|
for (; i < 16; i++) this.buffer[i] = 0;
|
|
this.fin = 1;
|
|
this.blocks(this.buffer, 0, 16);
|
|
}
|
|
|
|
c = this.h[1] >>> 13;
|
|
this.h[1] &= 0x1fff;
|
|
for (i = 2; i < 10; i++) {
|
|
this.h[i] += c;
|
|
c = this.h[i] >>> 13;
|
|
this.h[i] &= 0x1fff;
|
|
}
|
|
this.h[0] += c * 5;
|
|
c = this.h[0] >>> 13;
|
|
this.h[0] &= 0x1fff;
|
|
this.h[1] += c;
|
|
c = this.h[1] >>> 13;
|
|
this.h[1] &= 0x1fff;
|
|
this.h[2] += c;
|
|
|
|
g[0] = this.h[0] + 5;
|
|
c = g[0] >>> 13;
|
|
g[0] &= 0x1fff;
|
|
for (i = 1; i < 10; i++) {
|
|
g[i] = this.h[i] + c;
|
|
c = g[i] >>> 13;
|
|
g[i] &= 0x1fff;
|
|
}
|
|
g[9] -= 1 << 13;
|
|
|
|
mask = (c ^ 1) - 1;
|
|
for (i = 0; i < 10; i++) g[i] &= mask;
|
|
mask = ~mask;
|
|
for (i = 0; i < 10; i++) this.h[i] = (this.h[i] & mask) | g[i];
|
|
|
|
this.h[0] = (this.h[0] | (this.h[1] << 13)) & 0xffff;
|
|
this.h[1] = ((this.h[1] >>> 3) | (this.h[2] << 10)) & 0xffff;
|
|
this.h[2] = ((this.h[2] >>> 6) | (this.h[3] << 7)) & 0xffff;
|
|
this.h[3] = ((this.h[3] >>> 9) | (this.h[4] << 4)) & 0xffff;
|
|
this.h[4] =
|
|
((this.h[4] >>> 12) | (this.h[5] << 1) | (this.h[6] << 14)) & 0xffff;
|
|
this.h[5] = ((this.h[6] >>> 2) | (this.h[7] << 11)) & 0xffff;
|
|
this.h[6] = ((this.h[7] >>> 5) | (this.h[8] << 8)) & 0xffff;
|
|
this.h[7] = ((this.h[8] >>> 8) | (this.h[9] << 5)) & 0xffff;
|
|
|
|
f = this.h[0] + this.pad[0];
|
|
this.h[0] = f & 0xffff;
|
|
for (i = 1; i < 8; i++) {
|
|
f = (((this.h[i] + this.pad[i]) | 0) + (f >>> 16)) | 0;
|
|
this.h[i] = f & 0xffff;
|
|
}
|
|
|
|
mac[macpos + 0] = (this.h[0] >>> 0) & 0xff;
|
|
mac[macpos + 1] = (this.h[0] >>> 8) & 0xff;
|
|
mac[macpos + 2] = (this.h[1] >>> 0) & 0xff;
|
|
mac[macpos + 3] = (this.h[1] >>> 8) & 0xff;
|
|
mac[macpos + 4] = (this.h[2] >>> 0) & 0xff;
|
|
mac[macpos + 5] = (this.h[2] >>> 8) & 0xff;
|
|
mac[macpos + 6] = (this.h[3] >>> 0) & 0xff;
|
|
mac[macpos + 7] = (this.h[3] >>> 8) & 0xff;
|
|
mac[macpos + 8] = (this.h[4] >>> 0) & 0xff;
|
|
mac[macpos + 9] = (this.h[4] >>> 8) & 0xff;
|
|
mac[macpos + 10] = (this.h[5] >>> 0) & 0xff;
|
|
mac[macpos + 11] = (this.h[5] >>> 8) & 0xff;
|
|
mac[macpos + 12] = (this.h[6] >>> 0) & 0xff;
|
|
mac[macpos + 13] = (this.h[6] >>> 8) & 0xff;
|
|
mac[macpos + 14] = (this.h[7] >>> 0) & 0xff;
|
|
mac[macpos + 15] = (this.h[7] >>> 8) & 0xff;
|
|
};
|
|
|
|
poly1305.prototype.update = function (m, mpos, bytes) {
|
|
var i, want;
|
|
|
|
if (this.leftover) {
|
|
want = 16 - this.leftover;
|
|
if (want > bytes) want = bytes;
|
|
for (i = 0; i < want; i++) this.buffer[this.leftover + i] = m[mpos + i];
|
|
bytes -= want;
|
|
mpos += want;
|
|
this.leftover += want;
|
|
if (this.leftover < 16) return;
|
|
this.blocks(this.buffer, 0, 16);
|
|
this.leftover = 0;
|
|
}
|
|
|
|
if (bytes >= 16) {
|
|
want = bytes - (bytes % 16);
|
|
this.blocks(m, mpos, want);
|
|
mpos += want;
|
|
bytes -= want;
|
|
}
|
|
|
|
if (bytes) {
|
|
for (i = 0; i < bytes; i++) this.buffer[this.leftover + i] = m[mpos + i];
|
|
this.leftover += bytes;
|
|
}
|
|
};
|
|
|
|
function checkLengths(k, n) {
|
|
if (k.length !== crypto_secretbox_KEYBYTES) throw new Error("bad key size");
|
|
if (n.length !== crypto_secretbox_NONCEBYTES)
|
|
throw new Error("bad nonce size");
|
|
}
|
|
|
|
function checkArrayTypes() {
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
if (!(arguments[i] instanceof Uint8Array))
|
|
throw new TypeError("unexpected type, use Uint8Array");
|
|
}
|
|
}
|
|
|
|
function crypto_stream(c, cpos, d, n, k) {
|
|
var s = new Uint8Array(32);
|
|
crypto_core_hsalsa20(s, n, k, sigma);
|
|
var sn = new Uint8Array(8);
|
|
for (var i = 0; i < 8; i++) sn[i] = n[i + 16];
|
|
return crypto_stream_salsa20(c, cpos, d, sn, s);
|
|
}
|
|
|
|
function crypto_stream_xor(c, cpos, m, mpos, d, n, k) {
|
|
var s = new Uint8Array(32);
|
|
crypto_core_hsalsa20(s, n, k, sigma);
|
|
var sn = new Uint8Array(8);
|
|
for (var i = 0; i < 8; i++) sn[i] = n[i + 16];
|
|
return crypto_stream_salsa20_xor(c, cpos, m, mpos, d, sn, s);
|
|
}
|
|
|
|
function crypto_onetimeauth(out, outpos, m, mpos, n, k) {
|
|
var s = new poly1305(k);
|
|
s.update(m, mpos, n);
|
|
s.finish(out, outpos);
|
|
return 0;
|
|
}
|
|
|
|
function crypto_onetimeauth_verify(h, hpos, m, mpos, n, k) {
|
|
var x = new Uint8Array(16);
|
|
crypto_onetimeauth(x, 0, m, mpos, n, k);
|
|
return crypto_verify_16(h, hpos, x, 0);
|
|
}
|
|
|
|
function crypto_secretbox(c, m, d, n, k) {
|
|
var i;
|
|
if (d < 32) return -1;
|
|
crypto_stream_xor(c, 0, m, 0, d, n, k);
|
|
crypto_onetimeauth(c, 16, c, 32, d - 32, c);
|
|
for (i = 0; i < 16; i++) c[i] = 0;
|
|
return 0;
|
|
}
|
|
|
|
function crypto_secretbox_open(m, c, d, n, k) {
|
|
var i;
|
|
var x = new Uint8Array(32);
|
|
if (d < 32) return -1;
|
|
crypto_stream(x, 0, 32, n, k);
|
|
if (crypto_onetimeauth_verify(c, 16, c, 32, d - 32, x) !== 0) return -1;
|
|
crypto_stream_xor(m, 0, c, 0, d, n, k);
|
|
for (i = 0; i < 32; i++) m[i] = 0;
|
|
return 0;
|
|
}
|
|
|
|
var nacl = {};
|
|
nacl.secretbox = function (msg, nonce, key) {
|
|
checkArrayTypes(msg, nonce, key);
|
|
checkLengths(key, nonce);
|
|
var m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.length);
|
|
var c = new Uint8Array(m.length);
|
|
for (var i = 0; i < msg.length; i++)
|
|
m[i + crypto_secretbox_ZEROBYTES] = msg[i];
|
|
crypto_secretbox(c, m, m.length, nonce, key);
|
|
return c.subarray(crypto_secretbox_BOXZEROBYTES);
|
|
};
|
|
|
|
nacl.secretbox.open = function (box, nonce, key) {
|
|
checkArrayTypes(box, nonce, key);
|
|
checkLengths(key, nonce);
|
|
var c = new Uint8Array(crypto_secretbox_BOXZEROBYTES + box.length);
|
|
var m = new Uint8Array(c.length);
|
|
for (var i = 0; i < box.length; i++)
|
|
c[i + crypto_secretbox_BOXZEROBYTES] = box[i];
|
|
if (c.length < 32) return null;
|
|
if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return null;
|
|
return m.subarray(crypto_secretbox_ZEROBYTES);
|
|
};
|
|
|
|
self.secretbox = nacl.secretbox;
|
|
|