diff options
Diffstat (limited to 'node_modules/uuid/dist/esm-browser/sha1.js')
-rw-r--r-- | node_modules/uuid/dist/esm-browser/sha1.js | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/node_modules/uuid/dist/esm-browser/sha1.js b/node_modules/uuid/dist/esm-browser/sha1.js new file mode 100644 index 0000000..940548b --- /dev/null +++ b/node_modules/uuid/dist/esm-browser/sha1.js @@ -0,0 +1,96 @@ +// Adapted from Chris Veness' SHA1 code at +// http://www.movable-type.co.uk/scripts/sha1.html +function f(s, x, y, z) { + switch (s) { + case 0: + return x & y ^ ~x & z; + + case 1: + return x ^ y ^ z; + + case 2: + return x & y ^ x & z ^ y & z; + + case 3: + return x ^ y ^ z; + } +} + +function ROTL(x, n) { + return x << n | x >>> 32 - n; +} + +function sha1(bytes) { + var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6]; + var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0]; + + if (typeof bytes === 'string') { + var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape + + bytes = []; + + for (var i = 0; i < msg.length; ++i) { + bytes.push(msg.charCodeAt(i)); + } + } else if (!Array.isArray(bytes)) { + // Convert Array-like to Array + bytes = Array.prototype.slice.call(bytes); + } + + bytes.push(0x80); + var l = bytes.length / 4 + 2; + var N = Math.ceil(l / 16); + var M = new Array(N); + + for (var _i = 0; _i < N; ++_i) { + var arr = new Uint32Array(16); + + for (var j = 0; j < 16; ++j) { + arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3]; + } + + M[_i] = arr; + } + + M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32); + M[N - 1][14] = Math.floor(M[N - 1][14]); + M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff; + + for (var _i2 = 0; _i2 < N; ++_i2) { + var W = new Uint32Array(80); + + for (var t = 0; t < 16; ++t) { + W[t] = M[_i2][t]; + } + + for (var _t = 16; _t < 80; ++_t) { + W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1); + } + + var a = H[0]; + var b = H[1]; + var c = H[2]; + var d = H[3]; + var e = H[4]; + + for (var _t2 = 0; _t2 < 80; ++_t2) { + var s = Math.floor(_t2 / 20); + var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0; + e = d; + d = c; + c = ROTL(b, 30) >>> 0; + b = a; + a = T; + } + + H[0] = H[0] + a >>> 0; + H[1] = H[1] + b >>> 0; + H[2] = H[2] + c >>> 0; + H[3] = H[3] + d >>> 0; + H[4] = H[4] + e >>> 0; + } + + return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff]; +} + +export default sha1;
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