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59 lines
1.6 KiB
59 lines
1.6 KiB
import Crypto from '@/utils/oss-upload/common/crypto/crypto.js.js';
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(function() {
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// Shortcut
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var util = Crypto.util;
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// Public API
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var SHA1 = Crypto.SHA1 = function(message, options) {
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var digestbytes = util.wordsToBytes(SHA1._sha1(message));
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return options && options.asBytes ? digestbytes :
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options && options.asString ? util.bytesToString(digestbytes) :
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util.bytesToHex(digestbytes);
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};
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// The core
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SHA1._sha1 = function(message) {
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var m = util.stringToWords(message),
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l = message.length * 8,
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w = [],
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H0 = 1732584193,
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H1 = -271733879,
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H2 = -1732584194,
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H3 = 271733878,
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H4 = -1009589776;
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// Padding
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m[l >> 5] |= 0x80 << (24 - l % 32);
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m[((l + 64 >>> 9) << 4) + 15] = l;
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for (var i = 0; i < m.length; i += 16) {
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var a = H0,
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b = H1,
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c = H2,
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d = H3,
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e = H4;
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for (var j = 0; j < 80; j++) {
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if (j < 16) w[j] = m[i + j];
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else {
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var n = w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16];
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w[j] = (n << 1) | (n >>> 31);
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}
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var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + (
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j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 :
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j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 :
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j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 :
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(H1 ^ H2 ^ H3) - 899497514);
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H4 = H3;
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H3 = H2;
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H2 = (H1 << 30) | (H1 >>> 2);
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H1 = H0;
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H0 = t;
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}
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H0 += a;
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H1 += b;
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H2 += c;
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H3 += d;
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H4 += e;
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}
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return [H0, H1, H2, H3, H4];
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};
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// Package private blocksize
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SHA1._blocksize = 16;
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})();
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