繁花不似锦
嗯,那只花了我一个月的时间。var SHA1Generator = { hex_chr: "0123456789abcdef", hex: function (num) { var str = ""; for (var j = 7; j >= 0; j--) str += this.hex_chr.charAt((num >> (j * 4)) & 0x0F); return str; }, str2blks_SHA1: function (str) { var nblk = ((str.length + 8) >> 6) + 1; var blks = new Array(nblk * 16); for (var i = 0; i < nblk * 16; i++) blks[i] = 0; for (i = 0; i < str.length; i++) blks[i >> 2] |= str.charCodeAt(i) << (24 - (i % 4) * 8); blks[i >> 2] |= 0x80 << (24 - (i % 4) * 8); blks[nblk * 16 - 1] = str.length * 8; return blks; }, add: function (x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw & 0xFFFF); }, rol: function (num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); }, ft: function (t, b, c, d) { if (t < 20) return (b & c) | ((~b) & d); if (t < 40) return b ^ c ^ d; if (t < 60) return (b & c) | (b & d) | (c & d); return b ^ c ^ d; }, kt: function (t) { return (t < 20) ? 1518500249 : (t < 40) ? 1859775393 : (t < 60) ? -1894007588 : -899497514; }, calcSHA1FromByte: function(byteArr) { var str = ''; for(var i=0; i<byteArr.length; i++) str += String.fromCharCode(byteArr[i]); return this.calcSHA1(str); }, calcSHA1: function (str) { if (str != '') { var x = this.str2blks_SHA1(str); var w = new Array(80); var a = 1732584193; var b = -271733879; var c = -1732584194; var d = 271733878; var e = -1009589776; for (var i = 0; i < x.length; i += 16) { var olda = a; var oldb = b; var oldc = c; var oldd = d; var olde = e; for (var j = 0; j < 80; j++) { if (j < 16) w[j] = x[i + j]; else w[j] = this.rol(w[j - 3] ^ w[j - 8] ^ w[j - 14] ^ w[j - 16], 1); t = this.add(this.add(this.rol(a, 5), this.ft(j, b, c, d)), this.add(this.add(e, w[j]), this.kt(j))); e = d; d = c; c = this.rol(b, 30); b = a; a = t; } a = this.add(a, olda); b = this.add(b, oldb); c = this.add(c, oldc); d = this.add(d, oldd); e = this.add(e, olde); } return this.hex(a) + this.hex(b) + this.hex(c) + this.hex(d) + this.hex(e); } else { return ''; } }};function stringToByteArray(str) { var bytes = []; for (var i = 0; i < str.length; ++i) { bytes.push(str.charCodeAt(i)); } return bytes;}function uuidToByteArray(hex) { // If this is a uuid, remove the dashes hex = hex.replace(/-/g, ""); // convert each hex number into a string representation // of the byte integer. var bytes = []; for(var i = 0; i < hex.length; i += 2) { bytes.push(parseInt(hex.substring(i, i+2),16)); } return bytes;}function sha1ToUUID5(hash) { var uuid = hash.substring(0, 8) + '-' + hash.substring(8, 12) + // four most significant bits holds version number 5 '-' + ((parseInt(hash.substring(12, 16), 16) & 0x0fff) | 0x5000).toString(16) + // two most significant bits holds zero and one for variant DCE1.1 '-' + ((parseInt(hash.substring(16, 20), 16) & 0x3fff) | 0x8000).toString(16) + '-' + hash.substring(20, 32); //12 digits return uuid;}var namespace = "e75a36a9-3323-40dd-a7d1-1c57ad2aa3cd"var id = "event154"var namespaceBytes = uuidToByteArray(namespace);var idBytes = stringToByteArray(id);var allBytes = namespaceBytes.concat(idBytes);console.log("ORG 4505612c-c323-5d6f-b5cc-b7f362b9ba55")console.log("NEW " + sha1ToUUID5(SHA1Generator.calcSHA1FromByte(allBytes)))