js MD5包含中文串时加密结果与JAVA结果不一致的解决方案
造成这个现象的原因是：js加密前未对中文字符进行UTF-8转码；
解决方案1：
直接使用CryptoJS的MD5包加密即可：
下载地址：https://code.google.com/archive/p/crypto-js/downloads
console.log('hex_md5', CryptoJS.MD5('加密字符').toString());
解决方案2：
直接使用下面的JS代码进行加密即可：
1 function md5(string) { 2 function md5_RotateLeft(lValue, iShiftBits) { 3 return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits)); 4 } 5 6 function md5_AddUnsigned(lX, lY) { 7 var lX4, lY4, lX8, lY8, lResult; 8 lX8 = (lX & 0x80000000); 9 lY8 = (lY & 0x80000000); 10 lX4 = (lX & 0x40000000); 11 lY4 = (lY & 0x40000000); 12 lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF); 13 if (lX4 & lY4) { 14 return (lResult ^ 0x80000000 ^ lX8 ^ lY8); 15 } 16 if (lX4 | lY4) { 17 if (lResult & 0x40000000) { 18 return (lResult ^ 0xC0000000 ^ lX8 ^ lY8); 19 } else { 20 return (lResult ^ 0x40000000 ^ lX8 ^ lY8); 21 } 22 } else { 23 return (lResult ^ lX8 ^ lY8); 24 } 25 } 26 27 function md5_F(x, y, z) { 28 return (x & y) | ((~x) & z); 29 } 30 31 function md5_G(x, y, z) { 32 return (x & z) | (y & (~z)); 33 } 34 35 function md5_H(x, y, z) { 36 return (x ^ y ^ z); 37 } 38 39 function md5_I(x, y, z) { 40 return (y ^ (x | (~z))); 41 } 42 43 function md5_FF(a, b, c, d, x, s, ac) { 44 a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_F(b, c, d), x), ac)); 45 return md5_AddUnsigned(md5_RotateLeft(a, s), b); 46 }; 47 48 function md5_GG(a, b, c, d, x, s, ac) { 49 a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_G(b, c, d), x), ac)); 50 return md5_AddUnsigned(md5_RotateLeft(a, s), b); 51 }; 52 53 function md5_HH(a, b, c, d, x, s, ac) { 54 a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_H(b, c, d), x), ac)); 55 return md5_AddUnsigned(md5_RotateLeft(a, s), b); 56 }; 57 58 function md5_II(a, b, c, d, x, s, ac) { 59 a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_I(b, c, d), x), ac)); 60 return md5_AddUnsigned(md5_RotateLeft(a, s), b); 61 }; 62 63 function md5_ConvertToWordArray(string) { 64 var lWordCount; 65 var lMessageLength = string.length; 66 var lNumberOfWords_temp1 = lMessageLength + 8; 67 var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64; 68 var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16; 69 var lWordArray = Array(lNumberOfWords - 1); 70 var lBytePosition = 0; 71 var lByteCount = 0; 72 while (lByteCount < lMessageLength) { 73 lWordCount = (lByteCount - (lByteCount % 4)) / 4; 74 lBytePosition = (lByteCount % 4) * 8; 75 lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition)); 76 lByteCount++; 77 } 78 lWordCount = (lByteCount - (lByteCount % 4)) / 4; 79 lBytePosition = (lByteCount % 4) * 8; 80 lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition); 81 lWordArray[lNumberOfWords - 2] = lMessageLength << 3; 82 lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29; 83 return lWordArray; 84 }; 85 86 function md5_WordToHex(lValue) { 87 var WordToHexValue = "", 88 WordToHexValue_temp = "", 89 lByte, lCount; 90 for (lCount = 0; lCount <= 3; lCount++) { 91 lByte = (lValue >>> (lCount * 8)) & 255; 92 WordToHexValue_temp = "0" + lByte.toString(16); 93 WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2); 94 } 95 return WordToHexValue; 96 }; 97 98 function md5_Utf8Encode(string) { 99 string = string.replace(/\r\n/g, "\n"); 100 var utftext = ""; 101 for (var n = 0; n < string.length; n++) { 102 var c = string.charCodeAt(n); 103 if (c < 128) { 104 utftext += String.fromCharCode(c); 105 } else if ((c > 127) && (c < 2048)) { 106 utftext += String.fromCharCode((c >> 6) | 192); 107 utftext += String.fromCharCode((c & 63) | 128); 108 } else { 109 utftext += String.fromCharCode((c >> 12) | 224); 110 utftext += String.fromCharCode(((c >> 6) & 63) | 128); 111 utftext += String.fromCharCode((c & 63) | 128); 112 } 113 } 114 return utftext; 115 }; 116 var x = Array(); 117 var k, AA, BB, CC, DD, a, b, c, d; 118 var S11 = 7, 119 S12 = 12, 120 S13 = 17, 121 S14 = 22; 122 var S21 = 5, 123 S22 = 9, 124 S23 = 14, 125 S24 = 20; 126 var S31 = 4, 127 S32 = 11, 128 S33 = 16, 129 S34 = 23; 130 var S41 = 6, 131 S42 = 10, 132 S43 = 15, 133 S44 = 21; 134 string = md5_Utf8Encode(string); 135 x = md5_ConvertToWordArray(string); 136 a = 0x67452301; 137 b = 0xEFCDAB89; 138 c = 0x98BADCFE; 139 d = 0x10325476; 140 for (k = 0; k < x.length; k += 16) { 141 AA = a; 142 BB = b; 143 CC = c; 144 DD = d; 145 a = md5_FF(a, b, c, d, x[k + 0], S11, 0xD76AA478); 146 d = md5_FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756); 147 c = md5_FF(c, d, a, b, x[k + 2], S13, 0x242070DB); 148 b = md5_FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE); 149 a = md5_FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF); 150 d = md5_FF(d, a, b, c, x[k + 5], S12, 0x4787C62A); 151 c = md5_FF(c, d, a, b, x[k + 6], S13, 0xA8304613); 152 b = md5_FF(b, c, d, a, x[k + 7], S14, 0xFD469501); 153 a = md5_FF(a, b, c, d, x[k + 8], S11, 0x698098D8); 154 d = md5_FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF); 155 c = md5_FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1); 156 b = md5_FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE); 157 a = md5_FF(a, b, c, d, x[k + 12], S11, 0x6B901122); 158 d = md5_FF(d, a, b, c, x[k + 13], S12, 0xFD987193); 159 c = md5_FF(c, d, a, b, x[k + 14], S13, 0xA679438E); 160 b = md5_FF(b, c, d, a, x[k + 15], S14, 0x49B40821); 161 a = md5_GG(a, b, c, d, x[k + 1], S21, 0xF61E2562); 162 d = md5_GG(d, a, b, c, x[k + 6], S22, 0xC040B340); 163 c = md5_GG(c, d, a, b, x[k + 11], S23, 0x265E5A51); 164 b = md5_GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA); 165 a = md5_GG(a, b, c, d, x[k + 5], S21, 0xD62F105D); 166 d = md5_GG(d, a, b, c, x[k + 10], S22, 0x2441453); 167 c = md5_GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681); 168 b = md5_GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8); 169 a = md5_GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6); 170 d = md5_GG(d, a, b, c, x[k + 14], S22, 0xC33707D6); 171 c = md5_GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87); 172 b = md5_GG(b, c, d, a, x[k + 8], S24, 0x455A14ED); 173 a = md5_GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905); 174 d = md5_GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8); 175 c = md5_GG(c, d, a, b, x[k + 7], S23, 0x676F02D9); 176 b = md5_GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A); 177 a = md5_HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942); 178 d = md5_HH(d, a, b, c, x[k + 8], S32, 0x8771F681); 179 c = md5_HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122); 180 b = md5_HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C); 181 a = md5_HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44); 182 d = md5_HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9); 183 c = md5_HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60); 184 b = md5_HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70); 185 a = md5_HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6); 186 d = md5_HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA); 187 c = md5_HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085); 188 b = md5_HH(b, c, d, a, x[k + 6], S34, 0x4881D05); 189 a = md5_HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039); 190 d = md5_HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5); 191 c = md5_HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8); 192 b = md5_HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665); 193 a = md5_II(a, b, c, d, x[k + 0], S41, 0xF4292244); 194 d = md5_II(d, a, b, c, x[k + 7], S42, 0x432AFF97); 195 c = md5_II(c, d, a, b, x[k + 14], S43, 0xAB9423A7); 196 b = md5_II(b, c, d, a, x[k + 5], S44, 0xFC93A039); 197 a = md5_II(a, b, c, d, x[k + 12], S41, 0x655B59C3); 198 d = md5_II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92); 199 c = md5_II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D); 200 b = md5_II(b, c, d, a, x[k + 1], S44, 0x85845DD1); 201 a = md5_II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F); 202 d = md5_II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0); 203 c = md5_II(c, d, a, b, x[k + 6], S43, 0xA3014314); 204 b = md5_II(b, c, d, a, x[k + 13], S44, 0x4E0811A1); 205 a = md5_II(a, b, c, d, x[k + 4], S41, 0xF7537E82); 206 d = md5_II(d, a, b, c, x[k + 11], S42, 0xBD3AF235); 207 c = md5_II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB); 208 b = md5_II(b, c, d, a, x[k + 9], S44, 0xEB86D391); 209 a = md5_AddUnsigned(a, AA); 210 b = md5_AddUnsigned(b, BB); 211 c = md5_AddUnsigned(c, CC); 212 d = md5_AddUnsigned(d, DD); 213 } 214 return (md5_WordToHex(a) + md5_WordToHex(b) + md5_WordToHex(c) + md5_WordToHex(d)).toLowerCase(); 215 }
解决方案3：
仍使用常规的加密代码，加密前先对待加密的字符进行UTF-8转码，相关代码如下：
1 //UTF-8转码方法1 2 URLEncoder.encode(str,'utf-8'); 3 4 //UTF-8转码方法2 5 function Utf8Encode(string) { 6 var utftext = ""; 7 for (var n = 0; n < string.length; n++) { 8 var c = string.charCodeAt(n); 9 if (c < 128) { 10 utftext += String.fromCharCode(c); 11 } else if ((c > 127) && (c < 2048)) { 12 utftext += String.fromCharCode((c >> 6) | 192); 13 utftext += String.fromCharCode((c & 63) | 128); 14 } else { 15 utftext += String.fromCharCode((c >> 12) | 224); 16 utftext += String.fromCharCode(((c >> 6) & 63) | 128); 17 utftext += String.fromCharCode((c & 63) | 128); 18 } 19 } 20 return utftext; 21 } 22 23 //常规MD5加密代码（供参考） 24 /* 25 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message 26 * Digest Algorithm, as defined in RFC 1321. 27 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. 28 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet 29 * Distributed under the BSD License 30 * See http://pajhome.org.uk/crypt/md5 for more info. 31 */ 32 33 /* 34 * Configurable variables. You may need to tweak these to be compatible with 35 * the server-side, but the defaults work in most cases. 36 */ 37 var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */ 38 var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */ 39 var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */ 40 41 /* 42 * These are the functions you'll usually want to call 43 * They take string arguments and return either hex or base-64 encoded strings 44 */ 45 function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} 46 function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));} 47 function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));} 48 function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); } 49 function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); } 50 function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); } 51 52 /* 53 * Perform a simple self-test to see if the VM is working 54 */ 55 function md5_vm_test() 56 { 57 return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; 58 } 59 60 /* 61 * Calculate the MD5 of an array of little-endian words, and a bit length 62 */ 63 function core_md5(x, len) 64 { 65 /* append padding */ 66 x[len >> 5] |= 0x80 << ((len) % 32); 67 x[(((len + 64) >>> 9) << 4) + 14] = len; 68 69 var a = 1732584193; 70 var b = -271733879; 71 var c = -1732584194; 72 var d = 271733878; 73 74 for(var i = 0; i < x.length; i += 16) 75 { 76 var olda = a; 77 var oldb = b; 78 var oldc = c; 79 var oldd = d; 80 81 a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); 82 d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); 83 c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); 84 b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); 85 a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); 86 d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); 87 c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); 88 b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); 89 a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); 90 d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); 91 c = md5_ff(c, d, a, b, x[i+10], 17, -42063); 92 b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); 93 a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); 94 d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); 95 c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); 96 b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); 97 98 a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); 99 d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); 100 c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); 101 b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); 102 a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); 103 d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); 104 c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); 105 b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); 106 a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); 107 d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); 108 c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); 109 b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); 110 a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); 111 d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); 112 c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); 113 b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); 114 115 a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); 116 d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); 117 c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); 118 b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); 119 a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); 120 d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); 121 c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); 122 b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); 123 a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); 124 d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); 125 c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); 126 b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); 127 a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); 128 d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); 129 c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); 130 b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); 131 132 a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); 133 d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); 134 c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); 135 b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); 136 a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); 137 d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); 138 c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); 139 b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); 140 a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); 141 d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); 142 c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); 143 b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); 144 a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); 145 d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); 146 c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); 147 b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); 148 149 a = safe_add(a, olda); 150 b = safe_add(b, oldb); 151 c = safe_add(c, oldc); 152 d = safe_add(d, oldd); 153 } 154 return Array(a, b, c, d); 155 156 } 157 158 /* 159 * These functions implement the four basic operations the algorithm uses. 160 */ 161 function md5_cmn(q, a, b, x, s, t) 162 { 163 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); 164 } 165 function md5_ff(a, b, c, d, x, s, t) 166 { 167 return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); 168 } 169 function md5_gg(a, b, c, d, x, s, t) 170 { 171 return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); 172 } 173 function md5_hh(a, b, c, d, x, s, t) 174 { 175 return md5_cmn(b ^ c ^ d, a, b, x, s, t); 176 } 177 function md5_ii(a, b, c, d, x, s, t) 178 { 179 return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); 180 } 181 182 /* 183 * Calculate the HMAC-MD5, of a key and some data 184 */ 185 function core_hmac_md5(key, data) 186 { 187 var bkey = str2binl(key); 188 if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz); 189 190 var ipad = Array(16), opad = Array(16); 191 for(var i = 0; i < 16; i++) 192 { 193 ipad[i] = bkey[i] ^ 0x36363636; 194 opad[i] = bkey[i] ^ 0x5C5C5C5C; 195 } 196 197 var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz); 198 return core_md5(opad.concat(hash), 512 + 128); 199 } 200 201 /* 202 * Add integers, wrapping at 2^32. This uses 16-bit operations internally 203 * to work around bugs in some JS interpreters. 204 */ 205 function safe_add(x, y) 206 { 207 var lsw = (x & 0xFFFF) + (y & 0xFFFF); 208 var msw = (x >> 16) + (y >> 16) + (lsw >> 16); 209 return (msw << 16) | (lsw & 0xFFFF); 210 } 211 212 /* 213 * Bitwise rotate a 32-bit number to the left. 214 */ 215 function bit_rol(num, cnt) 216 { 217 return (num << cnt) | (num >>> (32 - cnt)); 218 } 219 220 /* 221 * Convert a string to an array of little-endian words 222 * If chrsz is ASCII, characters >255 have their hi-byte silently ignored. 223 */ 224 function str2binl(str) 225 { 226 var bin = Array(); 227 var mask = (1 << chrsz) - 1; 228 for(var i = 0; i < str.length * chrsz; i += chrsz) 229 bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32); 230 return bin; 231 } 232 233 /* 234 * Convert an array of little-endian words to a string 235 */ 236 function binl2str(bin) 237 { 238 var str = ""; 239 var mask = (1 << chrsz) - 1; 240 for(var i = 0; i < bin.length * 32; i += chrsz) 241 str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask); 242 return str; 243 } 244 245 /* 246 * Convert an array of little-endian words to a hex string. 247 */ 248 function binl2hex(binarray) 249 { 250 var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; 251 var str = ""; 252 for(var i = 0; i < binarray.length * 4; i++) 253 { 254 str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + 255 hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF); 256 } 257 return str; 258 } 259 260 /* 261 * Convert an array of little-endian words to a base-64 string 262 */ 263 function binl2b64(binarray) 264 { 265 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 266 var str = ""; 267 for(var i = 0; i < binarray.length * 4; i += 3) 268 { 269 var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) 270 | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) 271 | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF); 272 for(var j = 0; j < 4; j++) 273 { 274 if(i * 8 + j * 6 > binarray.length * 32) str += b64pad; 275 else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); 276 } 277 } 278 return str; 279 }
