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files >> //proc/self/root/usr/lib/node_modules/npm/node_modules/uuid/lib/sha1-browser.js
// Adapted from Chris Veness' SHA1 code at // http://www.movable-type.co.uk/scripts/sha1.html 'use strict'; 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 = new Array(msg.length); for (var i = 0; i < msg.length; i++) bytes[i] = msg.charCodeAt(i); } 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++) { M[i] = new Array(16); for (var j=0; j<16; j++) { M[i][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[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 i=0; i<N; i++) { var W = new Array(80); for (var t=0; t<16; t++) W[t] = M[i][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 t=0; t<80; t++) { var s = Math.floor(t/20); var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[t] >>> 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 ]; } module.exports = sha1;
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