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2388 lines
61 KiB
2388 lines
61 KiB
(function(nacl) { |
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'use strict'; |
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// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri. |
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// Public domain. |
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// |
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// Implementation derived from TweetNaCl version 20140427. |
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// See for details: http://tweetnacl.cr.yp.to/ |
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var gf = function(init) { |
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var i, r = new Float64Array(16); |
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if (init) for (i = 0; i < init.length; i++) r[i] = init[i]; |
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return r; |
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}; |
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// Pluggable, initialized in high-level API below. |
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var randombytes = function(/* x, n */) { throw new Error('no PRNG'); }; |
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var _0 = new Uint8Array(16); |
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var _9 = new Uint8Array(32); _9[0] = 9; |
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var gf0 = gf(), |
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gf1 = gf([1]), |
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_121665 = gf([0xdb41, 1]), |
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D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]), |
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D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]), |
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X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]), |
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Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]), |
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I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]); |
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function ts64(x, i, h, l) { |
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x[i] = (h >> 24) & 0xff; |
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x[i+1] = (h >> 16) & 0xff; |
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x[i+2] = (h >> 8) & 0xff; |
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x[i+3] = h & 0xff; |
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x[i+4] = (l >> 24) & 0xff; |
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x[i+5] = (l >> 16) & 0xff; |
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x[i+6] = (l >> 8) & 0xff; |
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x[i+7] = l & 0xff; |
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} |
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function vn(x, xi, y, yi, n) { |
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var i,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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function crypto_verify_32(x, xi, y, yi) { |
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return vn(x,xi,y,yi,32); |
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} |
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function core_salsa20(o, p, k, c) { |
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var j0 = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24, |
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j1 = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24, |
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j2 = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24, |
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j3 = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24, |
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j4 = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24, |
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j5 = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24, |
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j6 = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24, |
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j7 = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24, |
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j8 = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24, |
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j9 = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24, |
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j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24, |
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j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24, |
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j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24, |
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j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24, |
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j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24, |
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j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24; |
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var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7, |
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x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14, |
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x15 = j15, 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 = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24, |
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j1 = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24, |
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j2 = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24, |
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j3 = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24, |
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j4 = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24, |
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j5 = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24, |
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j6 = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24, |
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j7 = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24, |
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j8 = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24, |
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j9 = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24, |
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j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24, |
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j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24, |
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j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24, |
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j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24, |
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j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24, |
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j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24; |
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var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7, |
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x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14, |
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x15 = j15, 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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|
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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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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] = x5 >>> 0 & 0xff; |
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o[ 5] = x5 >>> 8 & 0xff; |
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o[ 6] = x5 >>> 16 & 0xff; |
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o[ 7] = x5 >>> 24 & 0xff; |
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o[ 8] = x10 >>> 0 & 0xff; |
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o[ 9] = x10 >>> 8 & 0xff; |
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o[10] = x10 >>> 16 & 0xff; |
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o[11] = x10 >>> 24 & 0xff; |
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o[12] = x15 >>> 0 & 0xff; |
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o[13] = x15 >>> 8 & 0xff; |
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o[14] = x15 >>> 16 & 0xff; |
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o[15] = x15 >>> 24 & 0xff; |
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o[16] = x6 >>> 0 & 0xff; |
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o[17] = x6 >>> 8 & 0xff; |
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o[18] = x6 >>> 16 & 0xff; |
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o[19] = x6 >>> 24 & 0xff; |
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o[20] = x7 >>> 0 & 0xff; |
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o[21] = x7 >>> 8 & 0xff; |
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o[22] = x7 >>> 16 & 0xff; |
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o[23] = x7 >>> 24 & 0xff; |
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o[24] = x8 >>> 0 & 0xff; |
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o[25] = x8 >>> 8 & 0xff; |
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o[26] = x8 >>> 16 & 0xff; |
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o[27] = x8 >>> 24 & 0xff; |
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|
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o[28] = x9 >>> 0 & 0xff; |
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o[29] = x9 >>> 8 & 0xff; |
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o[30] = x9 >>> 16 & 0xff; |
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o[31] = x9 >>> 24 & 0xff; |
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} |
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function crypto_core_salsa20(out,inp,k,c) { |
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core_salsa20(out,inp,k,c); |
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} |
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function crypto_core_hsalsa20(out,inp,k,c) { |
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core_hsalsa20(out,inp,k,c); |
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} |
|
|
|
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; |
|
} |
|
|
|
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); |
|
} |
|
|
|
/* |
|
* Port of Andrew Moon's Poly1305-donna-16. Public domain. |
|
* https://github.com/floodyberry/poly1305-donna |
|
*/ |
|
|
|
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 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; |
|
} |
|
|
|
function set25519(r, a) { |
|
var i; |
|
for (i = 0; i < 16; i++) r[i] = a[i]|0; |
|
} |
|
|
|
function car25519(o) { |
|
var i, v, c = 1; |
|
for (i = 0; i < 16; i++) { |
|
v = o[i] + c + 65535; |
|
c = Math.floor(v / 65536); |
|
o[i] = v - c * 65536; |
|
} |
|
o[0] += c-1 + 37 * (c-1); |
|
} |
|
|
|
function sel25519(p, q, b) { |
|
var t, c = ~(b-1); |
|
for (var i = 0; i < 16; i++) { |
|
t = c & (p[i] ^ q[i]); |
|
p[i] ^= t; |
|
q[i] ^= t; |
|
} |
|
} |
|
|
|
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); |
|
pack25519(d, b); |
|
return crypto_verify_32(c, 0, d, 0); |
|
} |
|
|
|
function par25519(a) { |
|
var d = new Uint8Array(32); |
|
pack25519(d, a); |
|
return d[0] & 1; |
|
} |
|
|
|
function unpack25519(o, n) { |
|
var i; |
|
for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8); |
|
o[15] &= 0x7fff; |
|
} |
|
|
|
function A(o, a, b) { |
|
for (var i = 0; i < 16; i++) o[i] = a[i] + b[i]; |
|
} |
|
|
|
function Z(o, a, b) { |
|
for (var i = 0; i < 16; i++) o[i] = a[i] - b[i]; |
|
} |
|
|
|
function M(o, a, b) { |
|
var v, c, |
|
t0 = 0, t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0, t7 = 0, |
|
t8 = 0, t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0, |
|
t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0, |
|
t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0, |
|
b0 = b[0], |
|
b1 = b[1], |
|
b2 = b[2], |
|
b3 = b[3], |
|
b4 = b[4], |
|
b5 = b[5], |
|
b6 = b[6], |
|
b7 = b[7], |
|
b8 = b[8], |
|
b9 = b[9], |
|
b10 = b[10], |
|
b11 = b[11], |
|
b12 = b[12], |
|
b13 = b[13], |
|
b14 = b[14], |
|
b15 = b[15]; |
|
|
|
v = a[0]; |
|
t0 += v * b0; |
|
t1 += v * b1; |
|
t2 += v * b2; |
|
t3 += v * b3; |
|
t4 += v * b4; |
|
t5 += v * b5; |
|
t6 += v * b6; |
|
t7 += v * b7; |
|
t8 += v * b8; |
|
t9 += v * b9; |
|
t10 += v * b10; |
|
t11 += v * b11; |
|
t12 += v * b12; |
|
t13 += v * b13; |
|
t14 += v * b14; |
|
t15 += v * b15; |
|
v = a[1]; |
|
t1 += v * b0; |
|
t2 += v * b1; |
|
t3 += v * b2; |
|
t4 += v * b3; |
|
t5 += v * b4; |
|
t6 += v * b5; |
|
t7 += v * b6; |
|
t8 += v * b7; |
|
t9 += v * b8; |
|
t10 += v * b9; |
|
t11 += v * b10; |
|
t12 += v * b11; |
|
t13 += v * b12; |
|
t14 += v * b13; |
|
t15 += v * b14; |
|
t16 += v * b15; |
|
v = a[2]; |
|
t2 += v * b0; |
|
t3 += v * b1; |
|
t4 += v * b2; |
|
t5 += v * b3; |
|
t6 += v * b4; |
|
t7 += v * b5; |
|
t8 += v * b6; |
|
t9 += v * b7; |
|
t10 += v * b8; |
|
t11 += v * b9; |
|
t12 += v * b10; |
|
t13 += v * b11; |
|
t14 += v * b12; |
|
t15 += v * b13; |
|
t16 += v * b14; |
|
t17 += v * b15; |
|
v = a[3]; |
|
t3 += v * b0; |
|
t4 += v * b1; |
|
t5 += v * b2; |
|
t6 += v * b3; |
|
t7 += v * b4; |
|
t8 += v * b5; |
|
t9 += v * b6; |
|
t10 += v * b7; |
|
t11 += v * b8; |
|
t12 += v * b9; |
|
t13 += v * b10; |
|
t14 += v * b11; |
|
t15 += v * b12; |
|
t16 += v * b13; |
|
t17 += v * b14; |
|
t18 += v * b15; |
|
v = a[4]; |
|
t4 += v * b0; |
|
t5 += v * b1; |
|
t6 += v * b2; |
|
t7 += v * b3; |
|
t8 += v * b4; |
|
t9 += v * b5; |
|
t10 += v * b6; |
|
t11 += v * b7; |
|
t12 += v * b8; |
|
t13 += v * b9; |
|
t14 += v * b10; |
|
t15 += v * b11; |
|
t16 += v * b12; |
|
t17 += v * b13; |
|
t18 += v * b14; |
|
t19 += v * b15; |
|
v = a[5]; |
|
t5 += v * b0; |
|
t6 += v * b1; |
|
t7 += v * b2; |
|
t8 += v * b3; |
|
t9 += v * b4; |
|
t10 += v * b5; |
|
t11 += v * b6; |
|
t12 += v * b7; |
|
t13 += v * b8; |
|
t14 += v * b9; |
|
t15 += v * b10; |
|
t16 += v * b11; |
|
t17 += v * b12; |
|
t18 += v * b13; |
|
t19 += v * b14; |
|
t20 += v * b15; |
|
v = a[6]; |
|
t6 += v * b0; |
|
t7 += v * b1; |
|
t8 += v * b2; |
|
t9 += v * b3; |
|
t10 += v * b4; |
|
t11 += v * b5; |
|
t12 += v * b6; |
|
t13 += v * b7; |
|
t14 += v * b8; |
|
t15 += v * b9; |
|
t16 += v * b10; |
|
t17 += v * b11; |
|
t18 += v * b12; |
|
t19 += v * b13; |
|
t20 += v * b14; |
|
t21 += v * b15; |
|
v = a[7]; |
|
t7 += v * b0; |
|
t8 += v * b1; |
|
t9 += v * b2; |
|
t10 += v * b3; |
|
t11 += v * b4; |
|
t12 += v * b5; |
|
t13 += v * b6; |
|
t14 += v * b7; |
|
t15 += v * b8; |
|
t16 += v * b9; |
|
t17 += v * b10; |
|
t18 += v * b11; |
|
t19 += v * b12; |
|
t20 += v * b13; |
|
t21 += v * b14; |
|
t22 += v * b15; |
|
v = a[8]; |
|
t8 += v * b0; |
|
t9 += v * b1; |
|
t10 += v * b2; |
|
t11 += v * b3; |
|
t12 += v * b4; |
|
t13 += v * b5; |
|
t14 += v * b6; |
|
t15 += v * b7; |
|
t16 += v * b8; |
|
t17 += v * b9; |
|
t18 += v * b10; |
|
t19 += v * b11; |
|
t20 += v * b12; |
|
t21 += v * b13; |
|
t22 += v * b14; |
|
t23 += v * b15; |
|
v = a[9]; |
|
t9 += v * b0; |
|
t10 += v * b1; |
|
t11 += v * b2; |
|
t12 += v * b3; |
|
t13 += v * b4; |
|
t14 += v * b5; |
|
t15 += v * b6; |
|
t16 += v * b7; |
|
t17 += v * b8; |
|
t18 += v * b9; |
|
t19 += v * b10; |
|
t20 += v * b11; |
|
t21 += v * b12; |
|
t22 += v * b13; |
|
t23 += v * b14; |
|
t24 += v * b15; |
|
v = a[10]; |
|
t10 += v * b0; |
|
t11 += v * b1; |
|
t12 += v * b2; |
|
t13 += v * b3; |
|
t14 += v * b4; |
|
t15 += v * b5; |
|
t16 += v * b6; |
|
t17 += v * b7; |
|
t18 += v * b8; |
|
t19 += v * b9; |
|
t20 += v * b10; |
|
t21 += v * b11; |
|
t22 += v * b12; |
|
t23 += v * b13; |
|
t24 += v * b14; |
|
t25 += v * b15; |
|
v = a[11]; |
|
t11 += v * b0; |
|
t12 += v * b1; |
|
t13 += v * b2; |
|
t14 += v * b3; |
|
t15 += v * b4; |
|
t16 += v * b5; |
|
t17 += v * b6; |
|
t18 += v * b7; |
|
t19 += v * b8; |
|
t20 += v * b9; |
|
t21 += v * b10; |
|
t22 += v * b11; |
|
t23 += v * b12; |
|
t24 += v * b13; |
|
t25 += v * b14; |
|
t26 += v * b15; |
|
v = a[12]; |
|
t12 += v * b0; |
|
t13 += v * b1; |
|
t14 += v * b2; |
|
t15 += v * b3; |
|
t16 += v * b4; |
|
t17 += v * b5; |
|
t18 += v * b6; |
|
t19 += v * b7; |
|
t20 += v * b8; |
|
t21 += v * b9; |
|
t22 += v * b10; |
|
t23 += v * b11; |
|
t24 += v * b12; |
|
t25 += v * b13; |
|
t26 += v * b14; |
|
t27 += v * b15; |
|
v = a[13]; |
|
t13 += v * b0; |
|
t14 += v * b1; |
|
t15 += v * b2; |
|
t16 += v * b3; |
|
t17 += v * b4; |
|
t18 += v * b5; |
|
t19 += v * b6; |
|
t20 += v * b7; |
|
t21 += v * b8; |
|
t22 += v * b9; |
|
t23 += v * b10; |
|
t24 += v * b11; |
|
t25 += v * b12; |
|
t26 += v * b13; |
|
t27 += v * b14; |
|
t28 += v * b15; |
|
v = a[14]; |
|
t14 += v * b0; |
|
t15 += v * b1; |
|
t16 += v * b2; |
|
t17 += v * b3; |
|
t18 += v * b4; |
|
t19 += v * b5; |
|
t20 += v * b6; |
|
t21 += v * b7; |
|
t22 += v * b8; |
|
t23 += v * b9; |
|
t24 += v * b10; |
|
t25 += v * b11; |
|
t26 += v * b12; |
|
t27 += v * b13; |
|
t28 += v * b14; |
|
t29 += v * b15; |
|
v = a[15]; |
|
t15 += v * b0; |
|
t16 += v * b1; |
|
t17 += v * b2; |
|
t18 += v * b3; |
|
t19 += v * b4; |
|
t20 += v * b5; |
|
t21 += v * b6; |
|
t22 += v * b7; |
|
t23 += v * b8; |
|
t24 += v * b9; |
|
t25 += v * b10; |
|
t26 += v * b11; |
|
t27 += v * b12; |
|
t28 += v * b13; |
|
t29 += v * b14; |
|
t30 += v * b15; |
|
|
|
t0 += 38 * t16; |
|
t1 += 38 * t17; |
|
t2 += 38 * t18; |
|
t3 += 38 * t19; |
|
t4 += 38 * t20; |
|
t5 += 38 * t21; |
|
t6 += 38 * t22; |
|
t7 += 38 * t23; |
|
t8 += 38 * t24; |
|
t9 += 38 * t25; |
|
t10 += 38 * t26; |
|
t11 += 38 * t27; |
|
t12 += 38 * t28; |
|
t13 += 38 * t29; |
|
t14 += 38 * t30; |
|
// t15 left as is |
|
|
|
// first car |
|
c = 1; |
|
v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536; |
|
v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; |
|
v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; |
|
v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; |
|
v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; |
|
v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; |
|
v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; |
|
v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; |
|
v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; |
|
v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; |
|
v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; |
|
v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; |
|
v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; |
|
v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; |
|
v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536; |
|
v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536; |
|
t0 += c-1 + 37 * (c-1); |
|
|
|
// second car |
|
c = 1; |
|
v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536; |
|
v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; |
|
v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; |
|
v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; |
|
v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; |
|
v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; |
|
v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; |
|
v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; |
|
v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; |
|
v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; |
|
v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; |
|
v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; |
|
v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; |
|
v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; |
|
v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536; |
|
v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536; |
|
t0 += c-1 + 37 * (c-1); |
|
|
|
o[ 0] = t0; |
|
o[ 1] = t1; |
|
o[ 2] = t2; |
|
o[ 3] = t3; |
|
o[ 4] = t4; |
|
o[ 5] = t5; |
|
o[ 6] = t6; |
|
o[ 7] = t7; |
|
o[ 8] = t8; |
|
o[ 9] = t9; |
|
o[10] = t10; |
|
o[11] = t11; |
|
o[12] = t12; |
|
o[13] = t13; |
|
o[14] = t14; |
|
o[15] = t15; |
|
} |
|
|
|
function S(o, a) { |
|
M(o, a, a); |
|
} |
|
|
|
function inv25519(o, i) { |
|
var c = gf(); |
|
var a; |
|
for (a = 0; a < 16; a++) c[a] = i[a]; |
|
for (a = 253; a >= 0; a--) { |
|
S(c, c); |
|
if(a !== 2 && a !== 4) M(c, c, i); |
|
} |
|
for (a = 0; a < 16; a++) o[a] = c[a]; |
|
} |
|
|
|
function pow2523(o, i) { |
|
var c = gf(); |
|
var a; |
|
for (a = 0; a < 16; a++) c[a] = i[a]; |
|
for (a = 250; a >= 0; a--) { |
|
S(c, c); |
|
if(a !== 1) M(c, c, i); |
|
} |
|
for (a = 0; a < 16; a++) o[a] = c[a]; |
|
} |
|
|
|
function crypto_scalarmult(q, n, p) { |
|
var z = new Uint8Array(32); |
|
var x = new Float64Array(80), r, i; |
|
var a = gf(), b = gf(), c = gf(), |
|
d = gf(), e = gf(), f = gf(); |
|
for (i = 0; i < 31; i++) z[i] = n[i]; |
|
z[31]=(n[31]&127)|64; |
|
z[0]&=248; |
|
unpack25519(x,p); |
|
for (i = 0; i < 16; i++) { |
|
b[i]=x[i]; |
|
d[i]=a[i]=c[i]=0; |
|
} |
|
a[0]=d[0]=1; |
|
for (i=254; i>=0; --i) { |
|
r=(z[i>>>3]>>>(i&7))&1; |
|
sel25519(a,b,r); |
|
sel25519(c,d,r); |
|
A(e,a,c); |
|
Z(a,a,c); |
|
A(c,b,d); |
|
Z(b,b,d); |
|
S(d,e); |
|
S(f,a); |
|
M(a,c,a); |
|
M(c,b,e); |
|
A(e,a,c); |
|
Z(a,a,c); |
|
S(b,a); |
|
Z(c,d,f); |
|
M(a,c,_121665); |
|
A(a,a,d); |
|
M(c,c,a); |
|
M(a,d,f); |
|
M(d,b,x); |
|
S(b,e); |
|
sel25519(a,b,r); |
|
sel25519(c,d,r); |
|
} |
|
for (i = 0; i < 16; i++) { |
|
x[i+16]=a[i]; |
|
x[i+32]=c[i]; |
|
x[i+48]=b[i]; |
|
x[i+64]=d[i]; |
|
} |
|
var x32 = x.subarray(32); |
|
var x16 = x.subarray(16); |
|
inv25519(x32,x32); |
|
M(x16,x16,x32); |
|
pack25519(q,x16); |
|
return 0; |
|
} |
|
|
|
function crypto_scalarmult_base(q, n) { |
|
return crypto_scalarmult(q, n, _9); |
|
} |
|
|
|
function crypto_box_keypair(y, x) { |
|
randombytes(x, 32); |
|
return crypto_scalarmult_base(y, x); |
|
} |
|
|
|
function crypto_box_beforenm(k, y, x) { |
|
var s = new Uint8Array(32); |
|
crypto_scalarmult(s, x, y); |
|
return crypto_core_hsalsa20(k, _0, s, sigma); |
|
} |
|
|
|
var crypto_box_afternm = crypto_secretbox; |
|
var crypto_box_open_afternm = crypto_secretbox_open; |
|
|
|
function crypto_box(c, m, d, n, y, x) { |
|
var k = new Uint8Array(32); |
|
crypto_box_beforenm(k, y, x); |
|
return crypto_box_afternm(c, m, d, n, k); |
|
} |
|
|
|
function crypto_box_open(m, c, d, n, y, x) { |
|
var k = new Uint8Array(32); |
|
crypto_box_beforenm(k, y, x); |
|
return crypto_box_open_afternm(m, c, d, n, k); |
|
} |
|
|
|
var K = [ |
|
0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, |
|
0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, |
|
0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, |
|
0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, |
|
0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, |
|
0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, |
|
0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, |
|
0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, |
|
0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, |
|
0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, |
|
0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, |
|
0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, |
|
0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, |
|
0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, |
|
0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, |
|
0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, |
|
0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, |
|
0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, |
|
0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, |
|
0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, |
|
0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, |
|
0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, |
|
0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, |
|
0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, |
|
0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, |
|
0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, |
|
0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, |
|
0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, |
|
0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, |
|
0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, |
|
0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, |
|
0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, |
|
0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, |
|
0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, |
|
0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, |
|
0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, |
|
0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, |
|
0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, |
|
0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, |
|
0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 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; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
// w |
|
h = wh[i%16]; |
|
l = wl[i%16]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
th = c & 0xffff | d << 16; |
|
tl = a & 0xffff | b << 16; |
|
|
|
// add |
|
h = th; |
|
l = tl; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
// Sigma0 |
|
h = ((ah0 >>> 28) | (al0 << (32-28))) ^ ((al0 >>> (34-32)) | (ah0 << (32-(34-32)))) ^ ((al0 >>> (39-32)) | (ah0 << (32-(39-32)))); |
|
l = ((al0 >>> 28) | (ah0 << (32-28))) ^ ((ah0 >>> (34-32)) | (al0 << (32-(34-32)))) ^ ((ah0 >>> (39-32)) | (al0 << (32-(39-32)))); |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
// Maj |
|
h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2); |
|
l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2); |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
bh7 = (c & 0xffff) | (d << 16); |
|
bl7 = (a & 0xffff) | (b << 16); |
|
|
|
// add |
|
h = bh3; |
|
l = bl3; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = th; |
|
l = tl; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
bh3 = (c & 0xffff) | (d << 16); |
|
bl3 = (a & 0xffff) | (b << 16); |
|
|
|
ah1 = bh0; |
|
ah2 = bh1; |
|
ah3 = bh2; |
|
ah4 = bh3; |
|
ah5 = bh4; |
|
ah6 = bh5; |
|
ah7 = bh6; |
|
ah0 = bh7; |
|
|
|
al1 = bl0; |
|
al2 = bl1; |
|
al3 = bl2; |
|
al4 = bl3; |
|
al5 = bl4; |
|
al6 = bl5; |
|
al7 = bl6; |
|
al0 = bl7; |
|
|
|
if (i%16 === 15) { |
|
for (j = 0; j < 16; j++) { |
|
// add |
|
h = wh[j]; |
|
l = wl[j]; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = wh[(j+9)%16]; |
|
l = wl[(j+9)%16]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
// sigma0 |
|
th = wh[(j+1)%16]; |
|
tl = wl[(j+1)%16]; |
|
h = ((th >>> 1) | (tl << (32-1))) ^ ((th >>> 8) | (tl << (32-8))) ^ (th >>> 7); |
|
l = ((tl >>> 1) | (th << (32-1))) ^ ((tl >>> 8) | (th << (32-8))) ^ ((tl >>> 7) | (th << (32-7))); |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
// sigma1 |
|
th = wh[(j+14)%16]; |
|
tl = wl[(j+14)%16]; |
|
h = ((th >>> 19) | (tl << (32-19))) ^ ((tl >>> (61-32)) | (th << (32-(61-32)))) ^ (th >>> 6); |
|
l = ((tl >>> 19) | (th << (32-19))) ^ ((th >>> (61-32)) | (tl << (32-(61-32)))) ^ ((tl >>> 6) | (th << (32-6))); |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
wh[j] = (c & 0xffff) | (d << 16); |
|
wl[j] = (a & 0xffff) | (b << 16); |
|
} |
|
} |
|
} |
|
|
|
// add |
|
h = ah0; |
|
l = al0; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[0]; |
|
l = hl[0]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[0] = ah0 = (c & 0xffff) | (d << 16); |
|
hl[0] = al0 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah1; |
|
l = al1; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[1]; |
|
l = hl[1]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[1] = ah1 = (c & 0xffff) | (d << 16); |
|
hl[1] = al1 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah2; |
|
l = al2; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[2]; |
|
l = hl[2]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[2] = ah2 = (c & 0xffff) | (d << 16); |
|
hl[2] = al2 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah3; |
|
l = al3; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[3]; |
|
l = hl[3]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[3] = ah3 = (c & 0xffff) | (d << 16); |
|
hl[3] = al3 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah4; |
|
l = al4; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[4]; |
|
l = hl[4]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[4] = ah4 = (c & 0xffff) | (d << 16); |
|
hl[4] = al4 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah5; |
|
l = al5; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[5]; |
|
l = hl[5]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[5] = ah5 = (c & 0xffff) | (d << 16); |
|
hl[5] = al5 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah6; |
|
l = al6; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[6]; |
|
l = hl[6]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[6] = ah6 = (c & 0xffff) | (d << 16); |
|
hl[6] = al6 = (a & 0xffff) | (b << 16); |
|
|
|
h = ah7; |
|
l = al7; |
|
|
|
a = l & 0xffff; b = l >>> 16; |
|
c = h & 0xffff; d = h >>> 16; |
|
|
|
h = hh[7]; |
|
l = hl[7]; |
|
|
|
a += l & 0xffff; b += l >>> 16; |
|
c += h & 0xffff; d += h >>> 16; |
|
|
|
b += a >>> 16; |
|
c += b >>> 16; |
|
d += c >>> 16; |
|
|
|
hh[7] = ah7 = (c & 0xffff) | (d << 16); |
|
hl[7] = al7 = (a & 0xffff) | (b << 16); |
|
|
|
pos += 128; |
|
n -= 128; |
|
} |
|
|
|
return n; |
|
} |
|
|
|
function crypto_hash(out, m, n) { |
|
var hh = new Int32Array(8), |
|
hl = new Int32Array(8), |
|
x = new Uint8Array(256), |
|
i, b = n; |
|
|
|
hh[0] = 0x6a09e667; |
|
hh[1] = 0xbb67ae85; |
|
hh[2] = 0x3c6ef372; |
|
hh[3] = 0xa54ff53a; |
|
hh[4] = 0x510e527f; |
|
hh[5] = 0x9b05688c; |
|
hh[6] = 0x1f83d9ab; |
|
hh[7] = 0x5be0cd19; |
|
|
|
hl[0] = 0xf3bcc908; |
|
hl[1] = 0x84caa73b; |
|
hl[2] = 0xfe94f82b; |
|
hl[3] = 0x5f1d36f1; |
|
hl[4] = 0xade682d1; |
|
hl[5] = 0x2b3e6c1f; |
|
hl[6] = 0xfb41bd6b; |
|
hl[7] = 0x137e2179; |
|
|
|
crypto_hashblocks_hl(hh, hl, m, n); |
|
n %= 128; |
|
|
|
for (i = 0; i < n; i++) x[i] = m[b-n+i]; |
|
x[n] = 128; |
|
|
|
n = 256-128*(n<112?1:0); |
|
x[n-9] = 0; |
|
ts64(x, n-8, (b / 0x20000000) | 0, b << 3); |
|
crypto_hashblocks_hl(hh, hl, x, n); |
|
|
|
for (i = 0; i < 8; i++) ts64(out, 8*i, hh[i], hl[i]); |
|
|
|
return 0; |
|
} |
|
|
|
function add(p, q) { |
|
var a = gf(), b = gf(), c = gf(), |
|
d = gf(), e = gf(), f = gf(), |
|
g = gf(), h = gf(), t = gf(); |
|
|
|
Z(a, p[1], p[0]); |
|
Z(t, q[1], q[0]); |
|
M(a, a, t); |
|
A(b, p[0], p[1]); |
|
A(t, q[0], q[1]); |
|
M(b, b, t); |
|
M(c, p[3], q[3]); |
|
M(c, c, D2); |
|
M(d, p[2], q[2]); |
|
A(d, d, d); |
|
Z(e, b, a); |
|
Z(f, d, c); |
|
A(g, d, c); |
|
A(h, b, a); |
|
|
|
M(p[0], e, f); |
|
M(p[1], h, g); |
|
M(p[2], g, f); |
|
M(p[3], e, h); |
|
} |
|
|
|
function cswap(p, q, b) { |
|
var i; |
|
for (i = 0; i < 4; i++) { |
|
sel25519(p[i], q[i], b); |
|
} |
|
} |
|
|
|
function pack(r, p) { |
|
var tx = gf(), ty = gf(), zi = gf(); |
|
inv25519(zi, p[2]); |
|
M(tx, p[0], zi); |
|
M(ty, p[1], zi); |
|
pack25519(r, ty); |
|
r[31] ^= par25519(tx) << 7; |
|
} |
|
|
|
function scalarmult(p, q, s) { |
|
var b, i; |
|
set25519(p[0], gf0); |
|
set25519(p[1], gf1); |
|
set25519(p[2], gf1); |
|
set25519(p[3], gf0); |
|
for (i = 255; i >= 0; --i) { |
|
b = (s[(i/8)|0] >> (i&7)) & 1; |
|
cswap(p, q, b); |
|
add(q, p); |
|
add(p, p); |
|
cswap(p, q, b); |
|
} |
|
} |
|
|
|
function scalarbase(p, s) { |
|
var q = [gf(), gf(), gf(), gf()]; |
|
set25519(q[0], X); |
|
set25519(q[1], Y); |
|
set25519(q[2], gf1); |
|
M(q[3], X, Y); |
|
scalarmult(p, q, s); |
|
} |
|
|
|
function crypto_sign_keypair(pk, sk, seeded) { |
|
var d = new Uint8Array(64); |
|
var p = [gf(), gf(), gf(), gf()]; |
|
var i; |
|
|
|
if (!seeded) randombytes(sk, 32); |
|
crypto_hash(d, sk, 32); |
|
d[0] &= 248; |
|
d[31] &= 127; |
|
d[31] |= 64; |
|
|
|
scalarbase(p, d); |
|
pack(pk, p); |
|
|
|
for (i = 0; i < 32; i++) sk[i+32] = pk[i]; |
|
return 0; |
|
} |
|
|
|
var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]); |
|
|
|
function modL(r, x) { |
|
var carry, i, j, k; |
|
for (i = 63; i >= 32; --i) { |
|
carry = 0; |
|
for (j = i - 32, k = i - 12; j < k; ++j) { |
|
x[j] += carry - 16 * x[i] * L[j - (i - 32)]; |
|
carry = (x[j] + 128) >> 8; |
|
x[j] -= carry * 256; |
|
} |
|
x[j] += carry; |
|
x[i] = 0; |
|
} |
|
carry = 0; |
|
for (j = 0; j < 32; j++) { |
|
x[j] += carry - (x[31] >> 4) * L[j]; |
|
carry = x[j] >> 8; |
|
x[j] &= 255; |
|
} |
|
for (j = 0; j < 32; j++) x[j] -= carry * L[j]; |
|
for (i = 0; i < 32; i++) { |
|
x[i+1] += x[i] >> 8; |
|
r[i] = x[i] & 255; |
|
} |
|
} |
|
|
|
function reduce(r) { |
|
var x = new Float64Array(64), i; |
|
for (i = 0; i < 64; i++) x[i] = r[i]; |
|
for (i = 0; i < 64; i++) r[i] = 0; |
|
modL(r, x); |
|
} |
|
|
|
// Note: difference from C - smlen returned, not passed as argument. |
|
function crypto_sign(sm, m, n, sk) { |
|
var d = new Uint8Array(64), h = new Uint8Array(64), r = new Uint8Array(64); |
|
var i, j, x = new Float64Array(64); |
|
var p = [gf(), gf(), gf(), gf()]; |
|
|
|
crypto_hash(d, sk, 32); |
|
d[0] &= 248; |
|
d[31] &= 127; |
|
d[31] |= 64; |
|
|
|
var smlen = n + 64; |
|
for (i = 0; i < n; i++) sm[64 + i] = m[i]; |
|
for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i]; |
|
|
|
crypto_hash(r, sm.subarray(32), n+32); |
|
reduce(r); |
|
scalarbase(p, r); |
|
pack(sm, p); |
|
|
|
for (i = 32; i < 64; i++) sm[i] = sk[i]; |
|
crypto_hash(h, sm, n + 64); |
|
reduce(h); |
|
|
|
for (i = 0; i < 64; i++) x[i] = 0; |
|
for (i = 0; i < 32; i++) x[i] = r[i]; |
|
for (i = 0; i < 32; i++) { |
|
for (j = 0; j < 32; j++) { |
|
x[i+j] += h[i] * d[j]; |
|
} |
|
} |
|
|
|
modL(sm.subarray(32), x); |
|
return smlen; |
|
} |
|
|
|
function unpackneg(r, p) { |
|
var t = gf(), chk = gf(), num = gf(), |
|
den = gf(), den2 = gf(), den4 = gf(), |
|
den6 = gf(); |
|
|
|
set25519(r[2], gf1); |
|
unpack25519(r[1], p); |
|
S(num, r[1]); |
|
M(den, num, D); |
|
Z(num, num, r[2]); |
|
A(den, r[2], den); |
|
|
|
S(den2, den); |
|
S(den4, den2); |
|
M(den6, den4, den2); |
|
M(t, den6, num); |
|
M(t, t, den); |
|
|
|
pow2523(t, t); |
|
M(t, t, num); |
|
M(t, t, den); |
|
M(t, t, den); |
|
M(r[0], t, den); |
|
|
|
S(chk, r[0]); |
|
M(chk, chk, den); |
|
if (neq25519(chk, num)) M(r[0], r[0], I); |
|
|
|
S(chk, r[0]); |
|
M(chk, chk, den); |
|
if (neq25519(chk, num)) return -1; |
|
|
|
if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]); |
|
|
|
M(r[3], r[0], r[1]); |
|
return 0; |
|
} |
|
|
|
function crypto_sign_open(m, sm, n, pk) { |
|
var i, mlen; |
|
var t = new Uint8Array(32), h = new Uint8Array(64); |
|
var p = [gf(), gf(), gf(), gf()], |
|
q = [gf(), gf(), gf(), gf()]; |
|
|
|
mlen = -1; |
|
if (n < 64) return -1; |
|
|
|
if (unpackneg(q, pk)) return -1; |
|
|
|
for (i = 0; i < n; i++) m[i] = sm[i]; |
|
for (i = 0; i < 32; i++) m[i+32] = pk[i]; |
|
crypto_hash(h, m, n); |
|
reduce(h); |
|
scalarmult(p, q, h); |
|
|
|
scalarbase(q, sm.subarray(32)); |
|
add(p, q); |
|
pack(t, p); |
|
|
|
n -= 64; |
|
if (crypto_verify_32(sm, 0, t, 0)) { |
|
for (i = 0; i < n; i++) m[i] = 0; |
|
return -1; |
|
} |
|
|
|
for (i = 0; i < n; i++) m[i] = sm[i + 64]; |
|
mlen = n; |
|
return mlen; |
|
} |
|
|
|
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; |
|
|
|
nacl.lowlevel = { |
|
crypto_core_hsalsa20: crypto_core_hsalsa20, |
|
crypto_stream_xor: crypto_stream_xor, |
|
crypto_stream: crypto_stream, |
|
crypto_stream_salsa20_xor: crypto_stream_salsa20_xor, |
|
crypto_stream_salsa20: crypto_stream_salsa20, |
|
crypto_onetimeauth: crypto_onetimeauth, |
|
crypto_onetimeauth_verify: crypto_onetimeauth_verify, |
|
crypto_verify_16: crypto_verify_16, |
|
crypto_verify_32: crypto_verify_32, |
|
crypto_secretbox: crypto_secretbox, |
|
crypto_secretbox_open: crypto_secretbox_open, |
|
crypto_scalarmult: crypto_scalarmult, |
|
crypto_scalarmult_base: crypto_scalarmult_base, |
|
crypto_box_beforenm: crypto_box_beforenm, |
|
crypto_box_afternm: crypto_box_afternm, |
|
crypto_box: crypto_box, |
|
crypto_box_open: crypto_box_open, |
|
crypto_box_keypair: crypto_box_keypair, |
|
crypto_hash: crypto_hash, |
|
crypto_sign: crypto_sign, |
|
crypto_sign_keypair: crypto_sign_keypair, |
|
crypto_sign_open: crypto_sign_open, |
|
|
|
crypto_secretbox_KEYBYTES: crypto_secretbox_KEYBYTES, |
|
crypto_secretbox_NONCEBYTES: crypto_secretbox_NONCEBYTES, |
|
crypto_secretbox_ZEROBYTES: crypto_secretbox_ZEROBYTES, |
|
crypto_secretbox_BOXZEROBYTES: crypto_secretbox_BOXZEROBYTES, |
|
crypto_scalarmult_BYTES: crypto_scalarmult_BYTES, |
|
crypto_scalarmult_SCALARBYTES: crypto_scalarmult_SCALARBYTES, |
|
crypto_box_PUBLICKEYBYTES: crypto_box_PUBLICKEYBYTES, |
|
crypto_box_SECRETKEYBYTES: crypto_box_SECRETKEYBYTES, |
|
crypto_box_BEFORENMBYTES: crypto_box_BEFORENMBYTES, |
|
crypto_box_NONCEBYTES: crypto_box_NONCEBYTES, |
|
crypto_box_ZEROBYTES: crypto_box_ZEROBYTES, |
|
crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES, |
|
crypto_sign_BYTES: crypto_sign_BYTES, |
|
crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES, |
|
crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES, |
|
crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES, |
|
crypto_hash_BYTES: crypto_hash_BYTES |
|
}; |
|
|
|
/* High-level API */ |
|
|
|
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 checkBoxLengths(pk, sk) { |
|
if (pk.length !== crypto_box_PUBLICKEYBYTES) throw new Error('bad public key size'); |
|
if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size'); |
|
} |
|
|
|
function checkArrayTypes() { |
|
var t, i; |
|
for (i = 0; i < arguments.length; i++) { |
|
if ((t = Object.prototype.toString.call(arguments[i])) !== '[object Uint8Array]') |
|
throw new TypeError('unexpected type ' + t + ', use Uint8Array'); |
|
} |
|
} |
|
|
|
function cleanup(arr) { |
|
for (var i = 0; i < arr.length; i++) arr[i] = 0; |
|
} |
|
|
|
// TODO: Completely remove this in v0.15. |
|
if (!nacl.util) { |
|
nacl.util = {}; |
|
nacl.util.decodeUTF8 = nacl.util.encodeUTF8 = nacl.util.encodeBase64 = nacl.util.decodeBase64 = function() { |
|
throw new Error('nacl.util moved into separate package: https://github.com/dchest/tweetnacl-util-js'); |
|
}; |
|
} |
|
|
|
nacl.randomBytes = function(n) { |
|
var b = new Uint8Array(n); |
|
randombytes(b, n); |
|
return b; |
|
}; |
|
|
|
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 false; |
|
if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return false; |
|
return m.subarray(crypto_secretbox_ZEROBYTES); |
|
}; |
|
|
|
nacl.secretbox.keyLength = crypto_secretbox_KEYBYTES; |
|
nacl.secretbox.nonceLength = crypto_secretbox_NONCEBYTES; |
|
nacl.secretbox.overheadLength = crypto_secretbox_BOXZEROBYTES; |
|
|
|
nacl.scalarMult = function(n, p) { |
|
checkArrayTypes(n, p); |
|
if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size'); |
|
if (p.length !== crypto_scalarmult_BYTES) throw new Error('bad p size'); |
|
var q = new Uint8Array(crypto_scalarmult_BYTES); |
|
crypto_scalarmult(q, n, p); |
|
return q; |
|
}; |
|
|
|
nacl.scalarMult.base = function(n) { |
|
checkArrayTypes(n); |
|
if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size'); |
|
var q = new Uint8Array(crypto_scalarmult_BYTES); |
|
crypto_scalarmult_base(q, n); |
|
return q; |
|
}; |
|
|
|
nacl.scalarMult.scalarLength = crypto_scalarmult_SCALARBYTES; |
|
nacl.scalarMult.groupElementLength = crypto_scalarmult_BYTES; |
|
|
|
nacl.box = function(msg, nonce, publicKey, secretKey) { |
|
var k = nacl.box.before(publicKey, secretKey); |
|
return nacl.secretbox(msg, nonce, k); |
|
}; |
|
|
|
nacl.box.before = function(publicKey, secretKey) { |
|
checkArrayTypes(publicKey, secretKey); |
|
checkBoxLengths(publicKey, secretKey); |
|
var k = new Uint8Array(crypto_box_BEFORENMBYTES); |
|
crypto_box_beforenm(k, publicKey, secretKey); |
|
return k; |
|
}; |
|
|
|
nacl.box.after = nacl.secretbox; |
|
|
|
nacl.box.open = function(msg, nonce, publicKey, secretKey) { |
|
var k = nacl.box.before(publicKey, secretKey); |
|
return nacl.secretbox.open(msg, nonce, k); |
|
}; |
|
|
|
nacl.box.open.after = nacl.secretbox.open; |
|
|
|
nacl.box.keyPair = function() { |
|
var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES); |
|
var sk = new Uint8Array(crypto_box_SECRETKEYBYTES); |
|
crypto_box_keypair(pk, sk); |
|
return {publicKey: pk, secretKey: sk}; |
|
}; |
|
|
|
nacl.box.keyPair.fromSecretKey = function(secretKey) { |
|
checkArrayTypes(secretKey); |
|
if (secretKey.length !== crypto_box_SECRETKEYBYTES) |
|
throw new Error('bad secret key size'); |
|
var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES); |
|
crypto_scalarmult_base(pk, secretKey); |
|
return {publicKey: pk, secretKey: new Uint8Array(secretKey)}; |
|
}; |
|
|
|
nacl.box.publicKeyLength = crypto_box_PUBLICKEYBYTES; |
|
nacl.box.secretKeyLength = crypto_box_SECRETKEYBYTES; |
|
nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES; |
|
nacl.box.nonceLength = crypto_box_NONCEBYTES; |
|
nacl.box.overheadLength = nacl.secretbox.overheadLength; |
|
|
|
nacl.sign = function(msg, secretKey) { |
|
checkArrayTypes(msg, secretKey); |
|
if (secretKey.length !== crypto_sign_SECRETKEYBYTES) |
|
throw new Error('bad secret key size'); |
|
var signedMsg = new Uint8Array(crypto_sign_BYTES+msg.length); |
|
crypto_sign(signedMsg, msg, msg.length, secretKey); |
|
return signedMsg; |
|
}; |
|
|
|
nacl.sign.open = function(signedMsg, publicKey) { |
|
if (arguments.length !== 2) |
|
throw new Error('nacl.sign.open accepts 2 arguments; did you mean to use nacl.sign.detached.verify?'); |
|
checkArrayTypes(signedMsg, publicKey); |
|
if (publicKey.length !== crypto_sign_PUBLICKEYBYTES) |
|
throw new Error('bad public key size'); |
|
var tmp = new Uint8Array(signedMsg.length); |
|
var mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey); |
|
if (mlen < 0) return null; |
|
var m = new Uint8Array(mlen); |
|
for (var i = 0; i < m.length; i++) m[i] = tmp[i]; |
|
return m; |
|
}; |
|
|
|
nacl.sign.detached = function(msg, secretKey) { |
|
var signedMsg = nacl.sign(msg, secretKey); |
|
var sig = new Uint8Array(crypto_sign_BYTES); |
|
for (var i = 0; i < sig.length; i++) sig[i] = signedMsg[i]; |
|
return sig; |
|
}; |
|
|
|
nacl.sign.detached.verify = function(msg, sig, publicKey) { |
|
checkArrayTypes(msg, sig, publicKey); |
|
if (sig.length !== crypto_sign_BYTES) |
|
throw new Error('bad signature size'); |
|
if (publicKey.length !== crypto_sign_PUBLICKEYBYTES) |
|
throw new Error('bad public key size'); |
|
var sm = new Uint8Array(crypto_sign_BYTES + msg.length); |
|
var m = new Uint8Array(crypto_sign_BYTES + msg.length); |
|
var i; |
|
for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i]; |
|
for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i]; |
|
return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0); |
|
}; |
|
|
|
nacl.sign.keyPair = function() { |
|
var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); |
|
var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES); |
|
crypto_sign_keypair(pk, sk); |
|
return {publicKey: pk, secretKey: sk}; |
|
}; |
|
|
|
nacl.sign.keyPair.fromSecretKey = function(secretKey) { |
|
checkArrayTypes(secretKey); |
|
if (secretKey.length !== crypto_sign_SECRETKEYBYTES) |
|
throw new Error('bad secret key size'); |
|
var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); |
|
for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i]; |
|
return {publicKey: pk, secretKey: new Uint8Array(secretKey)}; |
|
}; |
|
|
|
nacl.sign.keyPair.fromSeed = function(seed) { |
|
checkArrayTypes(seed); |
|
if (seed.length !== crypto_sign_SEEDBYTES) |
|
throw new Error('bad seed size'); |
|
var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); |
|
var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES); |
|
for (var i = 0; i < 32; i++) sk[i] = seed[i]; |
|
crypto_sign_keypair(pk, sk, true); |
|
return {publicKey: pk, secretKey: sk}; |
|
}; |
|
|
|
nacl.sign.publicKeyLength = crypto_sign_PUBLICKEYBYTES; |
|
nacl.sign.secretKeyLength = crypto_sign_SECRETKEYBYTES; |
|
nacl.sign.seedLength = crypto_sign_SEEDBYTES; |
|
nacl.sign.signatureLength = crypto_sign_BYTES; |
|
|
|
nacl.hash = function(msg) { |
|
checkArrayTypes(msg); |
|
var h = new Uint8Array(crypto_hash_BYTES); |
|
crypto_hash(h, msg, msg.length); |
|
return h; |
|
}; |
|
|
|
nacl.hash.hashLength = crypto_hash_BYTES; |
|
|
|
nacl.verify = function(x, y) { |
|
checkArrayTypes(x, y); |
|
// Zero length arguments are considered not equal. |
|
if (x.length === 0 || y.length === 0) return false; |
|
if (x.length !== y.length) return false; |
|
return (vn(x, 0, y, 0, x.length) === 0) ? true : false; |
|
}; |
|
|
|
nacl.setPRNG = function(fn) { |
|
randombytes = fn; |
|
}; |
|
|
|
(function() { |
|
// Initialize PRNG if environment provides CSPRNG. |
|
// If not, methods calling randombytes will throw. |
|
var crypto = typeof self !== 'undefined' ? (self.crypto || self.msCrypto) : null; |
|
if (crypto && crypto.getRandomValues) { |
|
// Browsers. |
|
var QUOTA = 65536; |
|
nacl.setPRNG(function(x, n) { |
|
var i, v = new Uint8Array(n); |
|
for (i = 0; i < n; i += QUOTA) { |
|
crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA))); |
|
} |
|
for (i = 0; i < n; i++) x[i] = v[i]; |
|
cleanup(v); |
|
}); |
|
} else if (typeof require !== 'undefined') { |
|
// Node.js. |
|
crypto = require('crypto'); |
|
if (crypto && crypto.randomBytes) { |
|
nacl.setPRNG(function(x, n) { |
|
var i, v = crypto.randomBytes(n); |
|
for (i = 0; i < n; i++) x[i] = v[i]; |
|
cleanup(v); |
|
}); |
|
} |
|
} |
|
})(); |
|
|
|
})(typeof module !== 'undefined' && module.exports ? module.exports : (self.nacl = self.nacl || {}));
|
|
|