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(/rn/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 }216 module.exports.md5 = md5;

1 const cmd5 = require("md5.js"); 2 3  Page({4 onLoad: function(){5 console.log(cmd5.md5("xxx"));6 //f561aaf6ef0bf14d4208bb46a4ccb3ad7  }8 })