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author | LinuxWizard42 <computerwizard@linuxmail.org> | 2022-10-12 22:54:37 +0300 |
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committer | LinuxWizard42 <computerwizard@linuxmail.org> | 2022-10-12 22:54:37 +0300 |
commit | 703e03aba33f234712206769f57717ba7d92d23d (patch) | |
tree | 0041f04ccb75bd5379c764e9fe42249fffe75fc3 /node_modules/uuid/lib/sha1-browser.js | |
parent | ab6e257e6e9d9a483d7e86f220d8b209a2cd7753 (diff) | |
download | FlashRunner-703e03aba33f234712206769f57717ba7d92d23d.tar.gz FlashRunner-703e03aba33f234712206769f57717ba7d92d23d.tar.zst |
Added export_allowed file to make repository visible in cgit
Diffstat (limited to 'node_modules/uuid/lib/sha1-browser.js')
-rw-r--r-- | node_modules/uuid/lib/sha1-browser.js | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/node_modules/uuid/lib/sha1-browser.js b/node_modules/uuid/lib/sha1-browser.js new file mode 100644 index 0000000..5758ed7 --- /dev/null +++ b/node_modules/uuid/lib/sha1-browser.js @@ -0,0 +1,89 @@ +// 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; |