function vn(x, xi, y, yi, n) { var i, d = 0; for (i = 0; i < n; i++) d |= x[xi + i] ^ y[yi + i]; return (1 & ((d - 1) >>> 8)) - 1; } function crypto_verify_16(x, xi, y, yi) { return vn(x, xi, y, yi, 16); } var crypto_secretbox_KEYBYTES = 32, crypto_secretbox_NONCEBYTES = 24, crypto_secretbox_ZEROBYTES = 32, crypto_secretbox_BOXZEROBYTES = 16, crypto_scalarmult_BYTES = 32, crypto_scalarmult_SCALARBYTES = 32, crypto_box_PUBLICKEYBYTES = 32, crypto_box_SECRETKEYBYTES = 32, crypto_box_BEFORENMBYTES = 32, crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES, crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES, crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES, crypto_sign_BYTES = 64, crypto_sign_PUBLICKEYBYTES = 32, crypto_sign_SECRETKEYBYTES = 64, crypto_sign_SEEDBYTES = 32, crypto_hash_BYTES = 64; function core_salsa20(o, p, k, c) { var j0 = c[0] & 0xff | (c[1] & 0xff) << 8 | (c[2] & 0xff) << 16 | (c[3] & 0xff) << 24, j1 = k[0] & 0xff | (k[1] & 0xff) << 8 | (k[2] & 0xff) << 16 | (k[3] & 0xff) << 24, j2 = k[4] & 0xff | (k[5] & 0xff) << 8 | (k[6] & 0xff) << 16 | (k[7] & 0xff) << 24, j3 = k[8] & 0xff | (k[9] & 0xff) << 8 | (k[10] & 0xff) << 16 | (k[11] & 0xff) << 24, j4 = k[12] & 0xff | (k[13] & 0xff) << 8 | (k[14] & 0xff) << 16 | (k[15] & 0xff) << 24, j5 = c[4] & 0xff | (c[5] & 0xff) << 8 | (c[6] & 0xff) << 16 | (c[7] & 0xff) << 24, j6 = p[0] & 0xff | (p[1] & 0xff) << 8 | (p[2] & 0xff) << 16 | (p[3] & 0xff) << 24, j7 = p[4] & 0xff | (p[5] & 0xff) << 8 | (p[6] & 0xff) << 16 | (p[7] & 0xff) << 24, j8 = p[8] & 0xff | (p[9] & 0xff) << 8 | (p[10] & 0xff) << 16 | (p[11] & 0xff) << 24, j9 = p[12] & 0xff | (p[13] & 0xff) << 8 | (p[14] & 0xff) << 16 | (p[15] & 0xff) << 24, j10 = c[8] & 0xff | (c[9] & 0xff) << 8 | (c[10] & 0xff) << 16 | (c[11] & 0xff) << 24, j11 = k[16] & 0xff | (k[17] & 0xff) << 8 | (k[18] & 0xff) << 16 | (k[19] & 0xff) << 24, j12 = k[20] & 0xff | (k[21] & 0xff) << 8 | (k[22] & 0xff) << 16 | (k[23] & 0xff) << 24, j13 = k[24] & 0xff | (k[25] & 0xff) << 8 | (k[26] & 0xff) << 16 | (k[27] & 0xff) << 24, j14 = k[28] & 0xff | (k[29] & 0xff) << 8 | (k[30] & 0xff) << 16 | (k[31] & 0xff) << 24, j15 = c[12] & 0xff | (c[13] & 0xff) << 8 | (c[14] & 0xff) << 16 | (c[15] & 0xff) << 24; var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7, x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14, x15 = j15, u; for (var i = 0; i < 20; i += 2) { u = x0 + x12 | 0; x4 ^= u << 7 | u >>> (32 - 7); u = x4 + x0 | 0; x8 ^= u << 9 | u >>> (32 - 9); u = x8 + x4 | 0; x12 ^= u << 13 | u >>> (32 - 13); u = x12 + x8 | 0; x0 ^= u << 18 | u >>> (32 - 18); u = x5 + x1 | 0; x9 ^= u << 7 | u >>> (32 - 7); u = x9 + x5 | 0; x13 ^= u << 9 | u >>> (32 - 9); u = x13 + x9 | 0; x1 ^= u << 13 | u >>> (32 - 13); u = x1 + x13 | 0; x5 ^= u << 18 | u >>> (32 - 18); u = x10 + x6 | 0; x14 ^= u << 7 | u >>> (32 - 7); u = x14 + x10 | 0; x2 ^= u << 9 | u >>> (32 - 9); u = x2 + x14 | 0; x6 ^= u << 13 | u >>> (32 - 13); u = x6 + x2 | 0; x10 ^= u << 18 | u >>> (32 - 18); u = x15 + x11 | 0; 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); } x0 = x0 + j0 | 0; x1 = x1 + j1 | 0; x2 = x2 + j2 | 0; x3 = x3 + j3 | 0; x4 = x4 + j4 | 0; x5 = x5 + j5 | 0; x6 = x6 + j6 | 0; x7 = x7 + j7 | 0; x8 = x8 + j8 | 0; x9 = x9 + j9 | 0; x10 = x10 + j10 | 0; x11 = x11 + j11 | 0; x12 = x12 + j12 | 0; x13 = x13 + j13 | 0; x14 = x14 + j14 | 0; x15 = x15 + j15 | 0; o[0] = x0 >>> 0 & 0xff; o[1] = x0 >>> 8 & 0xff; o[2] = x0 >>> 16 & 0xff; o[3] = x0 >>> 24 & 0xff; o[4] = x1 >>> 0 & 0xff; o[5] = x1 >>> 8 & 0xff; o[6] = x1 >>> 16 & 0xff; o[7] = x1 >>> 24 & 0xff; o[8] = x2 >>> 0 & 0xff; o[9] = x2 >>> 8 & 0xff; o[10] = x2 >>> 16 & 0xff; o[11] = x2 >>> 24 & 0xff; o[12] = x3 >>> 0 & 0xff; o[13] = x3 >>> 8 & 0xff; o[14] = x3 >>> 16 & 0xff; o[15] = x3 >>> 24 & 0xff; o[16] = x4 >>> 0 & 0xff; o[17] = x4 >>> 8 & 0xff; o[18] = x4 >>> 16 & 0xff; o[19] = x4 >>> 24 & 0xff; o[20] = x5 >>> 0 & 0xff; o[21] = x5 >>> 8 & 0xff; o[22] = x5 >>> 16 & 0xff; o[23] = x5 >>> 24 & 0xff; o[24] = x6 >>> 0 & 0xff; o[25] = x6 >>> 8 & 0xff; o[26] = x6 >>> 16 & 0xff; o[27] = x6 >>> 24 & 0xff; o[28] = x7 >>> 0 & 0xff; o[29] = x7 >>> 8 & 0xff; o[30] = x7 >>> 16 & 0xff; o[31] = x7 >>> 24 & 0xff; o[32] = x8 >>> 0 & 0xff; o[33] = x8 >>> 8 & 0xff; o[34] = x8 >>> 16 & 0xff; o[35] = x8 >>> 24 & 0xff; o[36] = x9 >>> 0 & 0xff; o[37] = x9 >>> 8 & 0xff; o[38] = x9 >>> 16 & 0xff; o[39] = x9 >>> 24 & 0xff; o[40] = x10 >>> 0 & 0xff; o[41] = x10 >>> 8 & 0xff; o[42] = x10 >>> 16 & 0xff; o[43] = x10 >>> 24 & 0xff; o[44] = x11 >>> 0 & 0xff; o[45] = x11 >>> 8 & 0xff; o[46] = x11 >>> 16 & 0xff; o[47] = x11 >>> 24 & 0xff; o[48] = x12 >>> 0 & 0xff; o[49] = x12 >>> 8 & 0xff; o[50] = x12 >>> 16 & 0xff; o[51] = x12 >>> 24 & 0xff; o[52] = x13 >>> 0 & 0xff; o[53] = x13 >>> 8 & 0xff; o[54] = x13 >>> 16 & 0xff; o[55] = x13 >>> 24 & 0xff; o[56] = x14 >>> 0 & 0xff; o[57] = x14 >>> 8 & 0xff; o[58] = x14 >>> 16 & 0xff; o[59] = x14 >>> 24 & 0xff; o[60] = x15 >>> 0 & 0xff; o[61] = x15 >>> 8 & 0xff; o[62] = x15 >>> 16 & 0xff; o[63] = x15 >>> 24 & 0xff; } function core_hsalsa20(o, p, k, c) { var j0 = c[0] & 0xff | (c[1] & 0xff) << 8 | (c[2] & 0xff) << 16 | (c[3] & 0xff) << 24, j1 = k[0] & 0xff | (k[1] & 0xff) << 8 | (k[2] & 0xff) << 16 | (k[3] & 0xff) << 24, j2 = k[4] & 0xff | (k[5] & 0xff) << 8 | (k[6] & 0xff) << 16 | (k[7] & 0xff) << 24, j3 = k[8] & 0xff | (k[9] & 0xff) << 8 | (k[10] & 0xff) << 16 | (k[11] & 0xff) << 24, j4 = k[12] & 0xff | (k[13] & 0xff) << 8 | (k[14] & 0xff) << 16 | (k[15] & 0xff) << 24, j5 = c[4] & 0xff | (c[5] & 0xff) << 8 | (c[6] & 0xff) << 16 | (c[7] & 0xff) << 24, j6 = p[0] & 0xff | (p[1] & 0xff) << 8 | (p[2] & 0xff) << 16 | (p[3] & 0xff) << 24, j7 = p[4] & 0xff | (p[5] & 0xff) << 8 | (p[6] & 0xff) << 16 | (p[7] & 0xff) << 24, j8 = p[8] & 0xff | (p[9] & 0xff) << 8 | (p[10] & 0xff) << 16 | (p[11] & 0xff) << 24, j9 = p[12] & 0xff | (p[13] & 0xff) << 8 | (p[14] & 0xff) << 16 | (p[15] & 0xff) << 24, j10 = c[8] & 0xff | (c[9] & 0xff) << 8 | (c[10] & 0xff) << 16 | (c[11] & 0xff) << 24, j11 = k[16] & 0xff | (k[17] & 0xff) << 8 | (k[18] & 0xff) << 16 | (k[19] & 0xff) << 24, j12 = k[20] & 0xff | (k[21] & 0xff) << 8 | (k[22] & 0xff) << 16 | (k[23] & 0xff) << 24, j13 = k[24] & 0xff | (k[25] & 0xff) << 8 | (k[26] & 0xff) << 16 | (k[27] & 0xff) << 24, j14 = k[28] & 0xff | (k[29] & 0xff) << 8 | (k[30] & 0xff) << 16 | (k[31] & 0xff) << 24, j15 = c[12] & 0xff | (c[13] & 0xff) << 8 | (c[14] & 0xff) << 16 | (c[15] & 0xff) << 24; var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7, x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14, x15 = j15, u; for (var i = 0; i < 20; i += 2) { u = x0 + x12 | 0; x4 ^= u << 7 | u >>> (32 - 7); u = x4 + x0 | 0; x8 ^= u << 9 | u >>> (32 - 9); u = x8 + x4 | 0; x12 ^= u << 13 | u >>> (32 - 13); u = x12 + x8 | 0; x0 ^= u << 18 | u >>> (32 - 18); u = x5 + x1 | 0; x9 ^= u << 7 | u >>> (32 - 7); u = x9 + x5 | 0; x13 ^= u << 9 | u >>> (32 - 9); u = x13 + x9 | 0; x1 ^= u << 13 | u >>> (32 - 13); u = x1 + x13 | 0; x5 ^= u << 18 | u >>> (32 - 18); u = x10 + x6 | 0; x14 ^= u << 7 | u >>> (32 - 7); u = x14 + x10 | 0; x2 ^= u << 9 | u >>> (32 - 9); u = x2 + x14 | 0; x6 ^= u << 13 | u >>> (32 - 13); u = x6 + x2 | 0; x10 ^= u << 18 | u >>> (32 - 18); u = x15 + x11 | 0; 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