如何从 JavaScript/Node.js 中的字符串生成 MD5 哈希?

问题描述 投票:0回答:12

如何使用 Javascript/Node.js 生成 MD5 哈希值?我已经有一个

fileVideo
字符串,我需要为该字符串生成 MD5 哈希值。

var fileVideo = "my string";
string md5 = functionToGenerateMD5hash(fileVideo);
// send md5 here
javascript node.js hash md5
12个回答
216
投票

如果你不想使用库或其他东西,你可以使用这种原生的javascript方法:

var MD5 = function(d){var r = M(V(Y(X(d),8*d.length)));return r.toLowerCase()};function M(d){for(var _,m="0123456789ABCDEF",f="",r=0;r<d.length;r++)_=d.charCodeAt(r),f+=m.charAt(_>>>4&15)+m.charAt(15&_);return f}function X(d){for(var _=Array(d.length>>2),m=0;m<_.length;m++)_[m]=0;for(m=0;m<8*d.length;m+=8)_[m>>5]|=(255&d.charCodeAt(m/8))<<m%32;return _}function V(d){for(var _="",m=0;m<32*d.length;m+=8)_+=String.fromCharCode(d[m>>5]>>>m%32&255);return _}function Y(d,_){d[_>>5]|=128<<_%32,d[14+(_+64>>>9<<4)]=_;for(var m=1732584193,f=-271733879,r=-1732584194,i=271733878,n=0;n<d.length;n+=16){var h=m,t=f,g=r,e=i;f=md5_ii(f=md5_ii(f=md5_ii(f=md5_ii(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_ff(f=md5_ff(f=md5_ff(f=md5_ff(f,r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+0],7,-680876936),f,r,d[n+1],12,-389564586),m,f,d[n+2],17,606105819),i,m,d[n+3],22,-1044525330),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+4],7,-176418897),f,r,d[n+5],12,1200080426),m,f,d[n+6],17,-1473231341),i,m,d[n+7],22,-45705983),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+8],7,1770035416),f,r,d[n+9],12,-1958414417),m,f,d[n+10],17,-42063),i,m,d[n+11],22,-1990404162),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+12],7,1804603682),f,r,d[n+13],12,-40341101),m,f,d[n+14],17,-1502002290),i,m,d[n+15],22,1236535329),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+1],5,-165796510),f,r,d[n+6],9,-1069501632),m,f,d[n+11],14,643717713),i,m,d[n+0],20,-373897302),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+5],5,-701558691),f,r,d[n+10],9,38016083),m,f,d[n+15],14,-660478335),i,m,d[n+4],20,-405537848),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+9],5,568446438),f,r,d[n+14],9,-1019803690),m,f,d[n+3],14,-187363961),i,m,d[n+8],20,1163531501),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+13],5,-1444681467),f,r,d[n+2],9,-51403784),m,f,d[n+7],14,1735328473),i,m,d[n+12],20,-1926607734),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+5],4,-378558),f,r,d[n+8],11,-2022574463),m,f,d[n+11],16,1839030562),i,m,d[n+14],23,-35309556),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+1],4,-1530992060),f,r,d[n+4],11,1272893353),m,f,d[n+7],16,-155497632),i,m,d[n+10],23,-1094730640),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+13],4,681279174),f,r,d[n+0],11,-358537222),m,f,d[n+3],16,-722521979),i,m,d[n+6],23,76029189),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+9],4,-640364487),f,r,d[n+12],11,-421815835),m,f,d[n+15],16,530742520),i,m,d[n+2],23,-995338651),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+0],6,-198630844),f,r,d[n+7],10,1126891415),m,f,d[n+14],15,-1416354905),i,m,d[n+5],21,-57434055),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+12],6,1700485571),f,r,d[n+3],10,-1894986606),m,f,d[n+10],15,-1051523),i,m,d[n+1],21,-2054922799),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+8],6,1873313359),f,r,d[n+15],10,-30611744),m,f,d[n+6],15,-1560198380),i,m,d[n+13],21,1309151649),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+4],6,-145523070),f,r,d[n+11],10,-1120210379),m,f,d[n+2],15,718787259),i,m,d[n+9],21,-343485551),m=safe_add(m,h),f=safe_add(f,t),r=safe_add(r,g),i=safe_add(i,e)}return Array(m,f,r,i)}function md5_cmn(d,_,m,f,r,i){return safe_add(bit_rol(safe_add(safe_add(_,d),safe_add(f,i)),r),m)}function md5_ff(d,_,m,f,r,i,n){return md5_cmn(_&m|~_&f,d,_,r,i,n)}function md5_gg(d,_,m,f,r,i,n){return md5_cmn(_&f|m&~f,d,_,r,i,n)}function md5_hh(d,_,m,f,r,i,n){return md5_cmn(_^m^f,d,_,r,i,n)}function md5_ii(d,_,m,f,r,i,n){return md5_cmn(m^(_|~f),d,_,r,i,n)}function safe_add(d,_){var m=(65535&d)+(65535&_);return(d>>16)+(_>>16)+(m>>16)<<16|65535&m}function bit_rol(d,_){return d<<_|d>>>32-_}

/** NORMAL words**/
var value = 'test';

var result = MD5(value);
 
document.body.innerHTML = 'hash -  normal words: ' + result;

/** NON ENGLISH words**/
value = 'מבחן'

//unescape() can be deprecated for the new browser versions
result = MD5(unescape(encodeURIComponent(value)));

document.body.innerHTML += '<br><br>hash - non english words: ' + result;
 

对于非英语单词,您可能需要使用 unescape()encodeURIComponent() 方法。

ps。使用或允许旧的或弱的加密算法(例如 MD5、SHA1)可以让攻击者以最小的努力解密信息。


74
投票

CryptoJS是一个加密库,可以生成md5哈希值等:

与脚本标签一起使用:

<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.0.0/core.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.9-1/md5.js"></script>
<script>
   var hash = CryptoJS.MD5("Message");
   alert(hash);
</script>

或者使用 ES6:

npm install crypto-js

import MD5 from "crypto-js/md5";
console.log(MD5("Message").toString());

您还可以使用模块化导入:

var MD5 = require("crypto-js/md5");
console.log(MD5("Message").toString());

Githubhttps://github.com/brix/crypto-js

CDNhttps://cdnjs.com/libraries/crypto-js


45
投票

您可以使用crypto-js

我还建议使用 SHA256,而不是 MD5。

通过 NPM 安装 crypto-js:

npm install crypto-js

或者,您可以使用 CDN 并引用 JS 文件

然后要显示 MD5 和 SHA256 哈希值,您可以执行以下操作:

<script type="text/javascript">
    var md5Hash = CryptoJS.MD5("Test");
    var sha256Hash = CryptoJS.SHA256("Test1");

    console.log(md5Hash.toString());
    console.log(sha256Hash.toString());
</script>

工作示例位于此处,JSFiddle

还有其他 JS 函数会生成

MD5
哈希,如下所述。

http://www.myersdaily.org/joseph/javascript/md5-text.html

http://pajhome.org.uk/crypt/md5/md5.html

function md5cycle(x, k) {
var a = x[0], b = x[1], c = x[2], d = x[3];

a = ff(a, b, c, d, k[0], 7, -680876936);
d = ff(d, a, b, c, k[1], 12, -389564586);
c = ff(c, d, a, b, k[2], 17,  606105819);
b = ff(b, c, d, a, k[3], 22, -1044525330);
a = ff(a, b, c, d, k[4], 7, -176418897);
d = ff(d, a, b, c, k[5], 12,  1200080426);
c = ff(c, d, a, b, k[6], 17, -1473231341);
b = ff(b, c, d, a, k[7], 22, -45705983);
a = ff(a, b, c, d, k[8], 7,  1770035416);
d = ff(d, a, b, c, k[9], 12, -1958414417);
c = ff(c, d, a, b, k[10], 17, -42063);
b = ff(b, c, d, a, k[11], 22, -1990404162);
a = ff(a, b, c, d, k[12], 7,  1804603682);
d = ff(d, a, b, c, k[13], 12, -40341101);
c = ff(c, d, a, b, k[14], 17, -1502002290);
b = ff(b, c, d, a, k[15], 22,  1236535329);

a = gg(a, b, c, d, k[1], 5, -165796510);
d = gg(d, a, b, c, k[6], 9, -1069501632);
c = gg(c, d, a, b, k[11], 14,  643717713);
b = gg(b, c, d, a, k[0], 20, -373897302);
a = gg(a, b, c, d, k[5], 5, -701558691);
d = gg(d, a, b, c, k[10], 9,  38016083);
c = gg(c, d, a, b, k[15], 14, -660478335);
b = gg(b, c, d, a, k[4], 20, -405537848);
a = gg(a, b, c, d, k[9], 5,  568446438);
d = gg(d, a, b, c, k[14], 9, -1019803690);
c = gg(c, d, a, b, k[3], 14, -187363961);
b = gg(b, c, d, a, k[8], 20,  1163531501);
a = gg(a, b, c, d, k[13], 5, -1444681467);
d = gg(d, a, b, c, k[2], 9, -51403784);
c = gg(c, d, a, b, k[7], 14,  1735328473);
b = gg(b, c, d, a, k[12], 20, -1926607734);

a = hh(a, b, c, d, k[5], 4, -378558);
d = hh(d, a, b, c, k[8], 11, -2022574463);
c = hh(c, d, a, b, k[11], 16,  1839030562);
b = hh(b, c, d, a, k[14], 23, -35309556);
a = hh(a, b, c, d, k[1], 4, -1530992060);
d = hh(d, a, b, c, k[4], 11,  1272893353);
c = hh(c, d, a, b, k[7], 16, -155497632);
b = hh(b, c, d, a, k[10], 23, -1094730640);
a = hh(a, b, c, d, k[13], 4,  681279174);
d = hh(d, a, b, c, k[0], 11, -358537222);
c = hh(c, d, a, b, k[3], 16, -722521979);
b = hh(b, c, d, a, k[6], 23,  76029189);
a = hh(a, b, c, d, k[9], 4, -640364487);
d = hh(d, a, b, c, k[12], 11, -421815835);
c = hh(c, d, a, b, k[15], 16,  530742520);
b = hh(b, c, d, a, k[2], 23, -995338651);

a = ii(a, b, c, d, k[0], 6, -198630844);
d = ii(d, a, b, c, k[7], 10,  1126891415);
c = ii(c, d, a, b, k[14], 15, -1416354905);
b = ii(b, c, d, a, k[5], 21, -57434055);
a = ii(a, b, c, d, k[12], 6,  1700485571);
d = ii(d, a, b, c, k[3], 10, -1894986606);
c = ii(c, d, a, b, k[10], 15, -1051523);
b = ii(b, c, d, a, k[1], 21, -2054922799);
a = ii(a, b, c, d, k[8], 6,  1873313359);
d = ii(d, a, b, c, k[15], 10, -30611744);
c = ii(c, d, a, b, k[6], 15, -1560198380);
b = ii(b, c, d, a, k[13], 21,  1309151649);
a = ii(a, b, c, d, k[4], 6, -145523070);
d = ii(d, a, b, c, k[11], 10, -1120210379);
c = ii(c, d, a, b, k[2], 15,  718787259);
b = ii(b, c, d, a, k[9], 21, -343485551);

x[0] = add32(a, x[0]);
x[1] = add32(b, x[1]);
x[2] = add32(c, x[2]);
x[3] = add32(d, x[3]);

}

function cmn(q, a, b, x, s, t) {
a = add32(add32(a, q), add32(x, t));
return add32((a << s) | (a >>> (32 - s)), b);
}

function ff(a, b, c, d, x, s, t) {
return cmn((b & c) | ((~b) & d), a, b, x, s, t);
}

function gg(a, b, c, d, x, s, t) {
return cmn((b & d) | (c & (~d)), a, b, x, s, t);
}

function hh(a, b, c, d, x, s, t) {
return cmn(b ^ c ^ d, a, b, x, s, t);
}

function ii(a, b, c, d, x, s, t) {
return cmn(c ^ (b | (~d)), a, b, x, s, t);
}

function md51(s) {
txt = '';
var n = s.length,
state = [1732584193, -271733879, -1732584194, 271733878], i;
for (i=64; i<=s.length; i+=64) {
md5cycle(state, md5blk(s.substring(i-64, i)));
}
s = s.substring(i-64);
var tail = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0];
for (i=0; i<s.length; i++)
tail[i>>2] |= s.charCodeAt(i) << ((i%4) << 3);
tail[i>>2] |= 0x80 << ((i%4) << 3);
if (i > 55) {
md5cycle(state, tail);
for (i=0; i<16; i++) tail[i] = 0;
}
tail[14] = n*8;
md5cycle(state, tail);
return state;
}

/* there needs to be support for Unicode here,
 * unless we pretend that we can redefine the MD-5
 * algorithm for multi-byte characters (perhaps
 * by adding every four 16-bit characters and
 * shortening the sum to 32 bits). Otherwise
 * I suggest performing MD-5 as if every character
 * was two bytes--e.g., 0040 0025 = @%--but then
 * how will an ordinary MD-5 sum be matched?
 * There is no way to standardize text to something
 * like UTF-8 before transformation; speed cost is
 * utterly prohibitive. The JavaScript standard
 * itself needs to look at this: it should start
 * providing access to strings as preformed UTF-8
 * 8-bit unsigned value arrays.
 */
function md5blk(s) { /* I figured global was faster.   */
var md5blks = [], i; /* Andy King said do it this way. */
for (i=0; i<64; i+=4) {
md5blks[i>>2] = s.charCodeAt(i)
+ (s.charCodeAt(i+1) << 8)
+ (s.charCodeAt(i+2) << 16)
+ (s.charCodeAt(i+3) << 24);
}
return md5blks;
}

var hex_chr = '0123456789abcdef'.split('');

function rhex(n)
{
var s='', j=0;
for(; j<4; j++)
s += hex_chr[(n >> (j * 8 + 4)) & 0x0F]
+ hex_chr[(n >> (j * 8)) & 0x0F];
return s;
}

function hex(x) {
for (var i=0; i<x.length; i++)
x[i] = rhex(x[i]);
return x.join('');
}

function md5(s) {
return hex(md51(s));
}

/* this function is much faster,
so if possible we use it. Some IEs
are the only ones I know of that
need the idiotic second function,
generated by an if clause.  */

function add32(a, b) {
return (a + b) & 0xFFFFFFFF;
}

if (md5('hello') != '5d41402abc4b2a76b9719d911017c592') {
function add32(x, y) {
var lsw = (x & 0xFFFF) + (y & 0xFFFF),
msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xFFFF);
}
}

然后简单的使用MD5函数,如下图:

alert(md5("Test string"));

另一个工作JS Fiddle在这里


35
投票

作为当代的替代方案,现在有一个客户端加密标准。这样做的好处是可以被浏览器本身优化。

取自文档中的示例:

async function sha256(message) {
    // encode as UTF-8
    const msgBuffer = new TextEncoder().encode(message);

    // hash the message
    const hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer);
    
    // convert ArrayBuffer to Array
    const hashArray = Array.from(new Uint8Array(hashBuffer));

    // convert bytes to hex string
    const hashHex = hashArray.map(b => ('00' + b.toString(16)).slice(-2)).join('');
    return hashHex;
}

sha256('abc').then(hash => console.log(hash));

(async function() {
    const hash = await sha256('abc');
}());

MD5 可能不受支持,但 SHA-256、SHA-384 和 SHA-512 等受支持。

这些也可能能够在服务器端计算。

这里有一些有关使用的文档:https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest

跨浏览器兼容性:https://caniuse.com/#feat=cryptography


16
投票

2023更新

这是一个仍然受到搜索欢迎的话题,并且大多数热门答案现在都不相关。

NodeJS(实际上是 V8)通过 crypto 模块提供了 native hashing 实现。

不要再使用任何自己的/第3方/第2方库。

  • 获取您想要散列的内容,请参见下文
  • 每次创建一个哈希函数
  • 进行哈希计算
文字(简化示例)
import { createHash } from 'node:crypto';

function hashText(content, algo = 'md5') {
  const hashFunc = createHash(algo);   // you can also sha256, sha512 etc
  hashFunc.update(content);
  return hashFunc.digest('hex');       // will return hash, formatted to HEX
}
文件(流式传输示例)
import { createHash } from 'node:crypto';
import { createReadStream } from 'node:fs';

async function hashFile(path, algo = 'md5') {
  const hashFunc = createHash(algo);   // you can also sha256, sha512 etc

  const contentStream = createReadStream(path);
  const updateDone = new Promise((resolve, reject) => {
    contentStream.on('data', (data) => hashFunc.update(data));
    contentStream.on('close', resolve);
    contentStream.on('error', reject);
  });

  await updateDone;
  return hashFunc.digest('hex');       // will return hash, formatted to HEX
}

相关文档


10
投票

这是这个不错的实现的简化和缩小版本(大约 3.5k):

function md5(d){return rstr2hex(binl2rstr(binl_md5(rstr2binl(d),8*d.length)))}function rstr2hex(d){for(var _,m="0123456789ABCDEF",f="",r=0;r<d.length;r++)_=d.charCodeAt(r),f+=m.charAt(_>>>4&15)+m.charAt(15&_);return f}function rstr2binl(d){for(var _=Array(d.length>>2),m=0;m<_.length;m++)_[m]=0;for(m=0;m<8*d.length;m+=8)_[m>>5]|=(255&d.charCodeAt(m/8))<<m%32;return _}function binl2rstr(d){for(var _="",m=0;m<32*d.length;m+=8)_+=String.fromCharCode(d[m>>5]>>>m%32&255);return _}function binl_md5(d,_){d[_>>5]|=128<<_%32,d[14+(_+64>>>9<<4)]=_;for(var m=1732584193,f=-271733879,r=-1732584194,i=271733878,n=0;n<d.length;n+=16){var h=m,t=f,g=r,e=i;f=md5_ii(f=md5_ii(f=md5_ii(f=md5_ii(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_ff(f=md5_ff(f=md5_ff(f=md5_ff(f,r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+0],7,-680876936),f,r,d[n+1],12,-389564586),m,f,d[n+2],17,606105819),i,m,d[n+3],22,-1044525330),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+4],7,-176418897),f,r,d[n+5],12,1200080426),m,f,d[n+6],17,-1473231341),i,m,d[n+7],22,-45705983),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+8],7,1770035416),f,r,d[n+9],12,-1958414417),m,f,d[n+10],17,-42063),i,m,d[n+11],22,-1990404162),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+12],7,1804603682),f,r,d[n+13],12,-40341101),m,f,d[n+14],17,-1502002290),i,m,d[n+15],22,1236535329),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+1],5,-165796510),f,r,d[n+6],9,-1069501632),m,f,d[n+11],14,643717713),i,m,d[n+0],20,-373897302),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+5],5,-701558691),f,r,d[n+10],9,38016083),m,f,d[n+15],14,-660478335),i,m,d[n+4],20,-405537848),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+9],5,568446438),f,r,d[n+14],9,-1019803690),m,f,d[n+3],14,-187363961),i,m,d[n+8],20,1163531501),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+13],5,-1444681467),f,r,d[n+2],9,-51403784),m,f,d[n+7],14,1735328473),i,m,d[n+12],20,-1926607734),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+5],4,-378558),f,r,d[n+8],11,-2022574463),m,f,d[n+11],16,1839030562),i,m,d[n+14],23,-35309556),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+1],4,-1530992060),f,r,d[n+4],11,1272893353),m,f,d[n+7],16,-155497632),i,m,d[n+10],23,-1094730640),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+13],4,681279174),f,r,d[n+0],11,-358537222),m,f,d[n+3],16,-722521979),i,m,d[n+6],23,76029189),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+9],4,-640364487),f,r,d[n+12],11,-421815835),m,f,d[n+15],16,530742520),i,m,d[n+2],23,-995338651),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+0],6,-198630844),f,r,d[n+7],10,1126891415),m,f,d[n+14],15,-1416354905),i,m,d[n+5],21,-57434055),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+12],6,1700485571),f,r,d[n+3],10,-1894986606),m,f,d[n+10],15,-1051523),i,m,d[n+1],21,-2054922799),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+8],6,1873313359),f,r,d[n+15],10,-30611744),m,f,d[n+6],15,-1560198380),i,m,d[n+13],21,1309151649),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+4],6,-145523070),f,r,d[n+11],10,-1120210379),m,f,d[n+2],15,718787259),i,m,d[n+9],21,-343485551),m=safe_add(m,h),f=safe_add(f,t),r=safe_add(r,g),i=safe_add(i,e)}return Array(m,f,r,i)}function md5_cmn(d,_,m,f,r,i){return safe_add(bit_rol(safe_add(safe_add(_,d),safe_add(f,i)),r),m)}function md5_ff(d,_,m,f,r,i,n){return md5_cmn(_&m|~_&f,d,_,r,i,n)}function md5_gg(d,_,m,f,r,i,n){return md5_cmn(_&f|m&~f,d,_,r,i,n)}function md5_hh(d,_,m,f,r,i,n){return md5_cmn(_^m^f,d,_,r,i,n)}function md5_ii(d,_,m,f,r,i,n){return md5_cmn(m^(_|~f),d,_,r,i,n)}function safe_add(d,_){var m=(65535&d)+(65535&_);return(d>>16)+(_>>16)+(m>>16)<<16|65535&m}function bit_rol(d,_){return d<<_|d>>>32-_}
该函数将返回一个大写的 32 个字符的字符串,如 

098F6BCD4621D373CADE4E832627B4F6

对于简单的字母数字字符串,您可以这样运行:

md5('test')
如果您需要完整的 unicode 支持,您可以在传递字符串之前调用 

unescapeencodeURIComponent

md5(unescape(encodeURIComponent('😊')))
    

4
投票

@valdeci@Derzu 版本添加了 Unicode 支持。 它也可以用于 md5-ize JSON 对象。
添加了与 IE11 及以下版本的不兼容:)

var md5 = (function() { var MD5 = function (d) { return M(V(Y(X(d), 8 * d.length))) } function M (d) { for (var _, m = '0123456789abcdef', f = '', r = 0; r < d.length; r++) { _ = d.charCodeAt(r) f += m.charAt(_ >>> 4 & 15) + m.charAt(15 & _) } return f } function X (d) { for (var _ = Array(d.length >> 2), m = 0; m < _.length; m++) { _[m] = 0 } for (m = 0; m < 8 * d.length; m += 8) { _[m >> 5] |= (255 & d.charCodeAt(m / 8)) << m % 32 } return _ } function V (d) { for (var _ = '', m = 0; m < 32 * d.length; m += 8) _ += String.fromCharCode(d[m >> 5] >>> m % 32 & 255) return _ } function Y (d, _) { d[_ >> 5] |= 128 << _ % 32 d[14 + (_ + 64 >>> 9 << 4)] = _ for (var m = 1732584193, f = -271733879, r = -1732584194, i = 271733878, n = 0; n < d.length; n += 16) { var h = m var t = f var g = r var e = i f = md5ii(f = md5ii(f = md5ii(f = md5ii(f = md5hh(f = md5hh(f = md5hh(f = md5hh(f = md5gg(f = md5gg(f = md5gg(f = md5gg(f = md5ff(f = md5ff(f = md5ff(f = md5ff(f, r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 0], 7, -680876936), f, r, d[n + 1], 12, -389564586), m, f, d[n + 2], 17, 606105819), i, m, d[n + 3], 22, -1044525330), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 4], 7, -176418897), f, r, d[n + 5], 12, 1200080426), m, f, d[n + 6], 17, -1473231341), i, m, d[n + 7], 22, -45705983), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 8], 7, 1770035416), f, r, d[n + 9], 12, -1958414417), m, f, d[n + 10], 17, -42063), i, m, d[n + 11], 22, -1990404162), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 12], 7, 1804603682), f, r, d[n + 13], 12, -40341101), m, f, d[n + 14], 17, -1502002290), i, m, d[n + 15], 22, 1236535329), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 1], 5, -165796510), f, r, d[n + 6], 9, -1069501632), m, f, d[n + 11], 14, 643717713), i, m, d[n + 0], 20, -373897302), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 5], 5, -701558691), f, r, d[n + 10], 9, 38016083), m, f, d[n + 15], 14, -660478335), i, m, d[n + 4], 20, -405537848), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 9], 5, 568446438), f, r, d[n + 14], 9, -1019803690), m, f, d[n + 3], 14, -187363961), i, m, d[n + 8], 20, 1163531501), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 13], 5, -1444681467), f, r, d[n + 2], 9, -51403784), m, f, d[n + 7], 14, 1735328473), i, m, d[n + 12], 20, -1926607734), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 5], 4, -378558), f, r, d[n + 8], 11, -2022574463), m, f, d[n + 11], 16, 1839030562), i, m, d[n + 14], 23, -35309556), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 1], 4, -1530992060), f, r, d[n + 4], 11, 1272893353), m, f, d[n + 7], 16, -155497632), i, m, d[n + 10], 23, -1094730640), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 13], 4, 681279174), f, r, d[n + 0], 11, -358537222), m, f, d[n + 3], 16, -722521979), i, m, d[n + 6], 23, 76029189), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 9], 4, -640364487), f, r, d[n + 12], 11, -421815835), m, f, d[n + 15], 16, 530742520), i, m, d[n + 2], 23, -995338651), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 0], 6, -198630844), f, r, d[n + 7], 10, 1126891415), m, f, d[n + 14], 15, -1416354905), i, m, d[n + 5], 21, -57434055), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 12], 6, 1700485571), f, r, d[n + 3], 10, -1894986606), m, f, d[n + 10], 15, -1051523), i, m, d[n + 1], 21, -2054922799), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 8], 6, 1873313359), f, r, d[n + 15], 10, -30611744), m, f, d[n + 6], 15, -1560198380), i, m, d[n + 13], 21, 1309151649), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 4], 6, -145523070), f, r, d[n + 11], 10, -1120210379), m, f, d[n + 2], 15, 718787259), i, m, d[n + 9], 21, -343485551) m = safeadd(m, h) f = safeadd(f, t) r = safeadd(r, g) i = safeadd(i, e) } return [m, f, r, i] } function md5cmn (d, _, m, f, r, i) { return safeadd(bitrol(safeadd(safeadd(_, d), safeadd(f, i)), r), m) } function md5ff (d, _, m, f, r, i, n) { return md5cmn(_ & m | ~_ & f, d, _, r, i, n) } function md5gg (d, _, m, f, r, i, n) { return md5cmn(_ & f | m & ~f, d, _, r, i, n) } function md5hh (d, _, m, f, r, i, n) { return md5cmn(_ ^ m ^ f, d, _, r, i, n) } function md5ii (d, _, m, f, r, i, n) { return md5cmn(m ^ (_ | ~f), d, _, r, i, n) } function safeadd (d, _) { var m = (65535 & d) + (65535 & _) return (d >> 16) + (_ >> 16) + (m >> 16) << 16 | 65535 & m } function bitrol (d, _) { return d << _ | d >>> 32 - _ } function MD5Unicode(buffer){ if (!(buffer instanceof Uint8Array)) { buffer = new TextEncoder().encode(typeof buffer==='string' ? buffer : JSON.stringify(buffer)); } var binary = []; var bytes = new Uint8Array(buffer); for (var i = 0, il = bytes.byteLength; i < il; i++) { binary.push(String.fromCharCode(bytes[i])); } return MD5(binary.join('')); } return MD5Unicode; })(); md5('òàùèéì€'); // aeb60a568b5bf37d397dde71dacf5519 md5({ prop1: 'òàùèéì€', prop2: 123 }); // 4334a47d3304a628e5b376bce203adbe
    

3
投票
这是 @valdeci 答案的 JSLint 兼容版本。

var MD5 = function (d) { return M(V(Y(X(d), 8 * d.length))) } function M (d) { for (var _, m = '0123456789ABCDEF', f = '', r = 0; r < d.length; r++) { _ = d.charCodeAt(r) f += m.charAt(_ >>> 4 & 15) + m.charAt(15 & _) } return f } function X (d) { for (var _ = Array(d.length >> 2), m = 0; m < _.length; m++) { _[m] = 0 } for (m = 0; m < 8 * d.length; m += 8) { _[m >> 5] |= (255 & d.charCodeAt(m / 8)) << m % 32 } return _ } function V (d) { for (var _ = '', m = 0; m < 32 * d.length; m += 8) _ += String.fromCharCode(d[m >> 5] >>> m % 32 & 255) return _ } function Y (d, _) { d[_ >> 5] |= 128 << _ % 32 d[14 + (_ + 64 >>> 9 << 4)] = _ for (var m = 1732584193, f = -271733879, r = -1732584194, i = 271733878, n = 0; n < d.length; n += 16) { var h = m var t = f var g = r var e = i f = md5ii(f = md5ii(f = md5ii(f = md5ii(f = md5hh(f = md5hh(f = md5hh(f = md5hh(f = md5gg(f = md5gg(f = md5gg(f = md5gg(f = md5ff(f = md5ff(f = md5ff(f = md5ff(f, r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 0], 7, -680876936), f, r, d[n + 1], 12, -389564586), m, f, d[n + 2], 17, 606105819), i, m, d[n + 3], 22, -1044525330), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 4], 7, -176418897), f, r, d[n + 5], 12, 1200080426), m, f, d[n + 6], 17, -1473231341), i, m, d[n + 7], 22, -45705983), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 8], 7, 1770035416), f, r, d[n + 9], 12, -1958414417), m, f, d[n + 10], 17, -42063), i, m, d[n + 11], 22, -1990404162), r = md5ff(r, i = md5ff(i, m = md5ff(m, f, r, i, d[n + 12], 7, 1804603682), f, r, d[n + 13], 12, -40341101), m, f, d[n + 14], 17, -1502002290), i, m, d[n + 15], 22, 1236535329), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 1], 5, -165796510), f, r, d[n + 6], 9, -1069501632), m, f, d[n + 11], 14, 643717713), i, m, d[n + 0], 20, -373897302), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 5], 5, -701558691), f, r, d[n + 10], 9, 38016083), m, f, d[n + 15], 14, -660478335), i, m, d[n + 4], 20, -405537848), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 9], 5, 568446438), f, r, d[n + 14], 9, -1019803690), m, f, d[n + 3], 14, -187363961), i, m, d[n + 8], 20, 1163531501), r = md5gg(r, i = md5gg(i, m = md5gg(m, f, r, i, d[n + 13], 5, -1444681467), f, r, d[n + 2], 9, -51403784), m, f, d[n + 7], 14, 1735328473), i, m, d[n + 12], 20, -1926607734), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 5], 4, -378558), f, r, d[n + 8], 11, -2022574463), m, f, d[n + 11], 16, 1839030562), i, m, d[n + 14], 23, -35309556), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 1], 4, -1530992060), f, r, d[n + 4], 11, 1272893353), m, f, d[n + 7], 16, -155497632), i, m, d[n + 10], 23, -1094730640), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 13], 4, 681279174), f, r, d[n + 0], 11, -358537222), m, f, d[n + 3], 16, -722521979), i, m, d[n + 6], 23, 76029189), r = md5hh(r, i = md5hh(i, m = md5hh(m, f, r, i, d[n + 9], 4, -640364487), f, r, d[n + 12], 11, -421815835), m, f, d[n + 15], 16, 530742520), i, m, d[n + 2], 23, -995338651), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 0], 6, -198630844), f, r, d[n + 7], 10, 1126891415), m, f, d[n + 14], 15, -1416354905), i, m, d[n + 5], 21, -57434055), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 12], 6, 1700485571), f, r, d[n + 3], 10, -1894986606), m, f, d[n + 10], 15, -1051523), i, m, d[n + 1], 21, -2054922799), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 8], 6, 1873313359), f, r, d[n + 15], 10, -30611744), m, f, d[n + 6], 15, -1560198380), i, m, d[n + 13], 21, 1309151649), r = md5ii(r, i = md5ii(i, m = md5ii(m, f, r, i, d[n + 4], 6, -145523070), f, r, d[n + 11], 10, -1120210379), m, f, d[n + 2], 15, 718787259), i, m, d[n + 9], 21, -343485551) m = safeadd(m, h) f = safeadd(f, t) r = safeadd(r, g) i = safeadd(i, e) } return [m, f, r, i] } function md5cmn (d, _, m, f, r, i) { return safeadd(bitrol(safeadd(safeadd(_, d), safeadd(f, i)), r), m) } function md5ff (d, _, m, f, r, i, n) { return md5cmn(_ & m | ~_ & f, d, _, r, i, n) } function md5gg (d, _, m, f, r, i, n) { return md5cmn(_ & f | m & ~f, d, _, r, i, n) } function md5hh (d, _, m, f, r, i, n) { return md5cmn(_ ^ m ^ f, d, _, r, i, n) } function md5ii (d, _, m, f, r, i, n) { return md5cmn(m ^ (_ | ~f), d, _, r, i, n) } function safeadd (d, _) { var m = (65535 & d) + (65535 & _) return (d >> 16) + (_ >> 16) + (m >> 16) << 16 | 65535 & m } function bitrol (d, _) { return d << _ | d >>> 32 - _ } var value = 'test'; var result = MD5(value); document.body.innerHTML = 'MD5: ' + result;


1
投票
可以在这个要点上找到它的函数

https://github.com/blueimp/JavaScript-MD5/blob/master/js/md5.js

/* * JavaScript MD5 * https://github.com/blueimp/JavaScript-MD5 * * Copyright 2011, Sebastian Tschan * https://blueimp.net * * Licensed under the MIT license: * https://opensource.org/licenses/MIT * * Based on * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message * Digest Algorithm, as defined in RFC 1321. * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet * Distributed under the BSD License * See http://pajhome.org.uk/crypt/md5 for more info. */ /* global define */ /* eslint-disable strict */ ;(function ($) { 'use strict' /** * Add integers, wrapping at 2^32. * This uses 16-bit operations internally to work around bugs in interpreters. * * @param {number} x First integer * @param {number} y Second integer * @returns {number} Sum */ function safeAdd(x, y) { var lsw = (x & 0xffff) + (y & 0xffff) var msw = (x >> 16) + (y >> 16) + (lsw >> 16) return (msw << 16) | (lsw & 0xffff) } /** * Bitwise rotate a 32-bit number to the left. * * @param {number} num 32-bit number * @param {number} cnt Rotation count * @returns {number} Rotated number */ function bitRotateLeft(num, cnt) { return (num << cnt) | (num >>> (32 - cnt)) } /** * Basic operation the algorithm uses. * * @param {number} q q * @param {number} a a * @param {number} b b * @param {number} x x * @param {number} s s * @param {number} t t * @returns {number} Result */ function md5cmn(q, a, b, x, s, t) { return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b) } /** * Basic operation the algorithm uses. * * @param {number} a a * @param {number} b b * @param {number} c c * @param {number} d d * @param {number} x x * @param {number} s s * @param {number} t t * @returns {number} Result */ function md5ff(a, b, c, d, x, s, t) { return md5cmn((b & c) | (~b & d), a, b, x, s, t) } /** * Basic operation the algorithm uses. * * @param {number} a a * @param {number} b b * @param {number} c c * @param {number} d d * @param {number} x x * @param {number} s s * @param {number} t t * @returns {number} Result */ function md5gg(a, b, c, d, x, s, t) { return md5cmn((b & d) | (c & ~d), a, b, x, s, t) } /** * Basic operation the algorithm uses. * * @param {number} a a * @param {number} b b * @param {number} c c * @param {number} d d * @param {number} x x * @param {number} s s * @param {number} t t * @returns {number} Result */ function md5hh(a, b, c, d, x, s, t) { return md5cmn(b ^ c ^ d, a, b, x, s, t) } /** * Basic operation the algorithm uses. * * @param {number} a a * @param {number} b b * @param {number} c c * @param {number} d d * @param {number} x x * @param {number} s s * @param {number} t t * @returns {number} Result */ function md5ii(a, b, c, d, x, s, t) { return md5cmn(c ^ (b | ~d), a, b, x, s, t) } /** * Calculate the MD5 of an array of little-endian words, and a bit length. * * @param {Array} x Array of little-endian words * @param {number} len Bit length * @returns {Array<number>} MD5 Array */ function binlMD5(x, len) { /* append padding */ x[len >> 5] |= 0x80 << len % 32 x[(((len + 64) >>> 9) << 4) + 14] = len var i var olda var oldb var oldc var oldd var a = 1732584193 var b = -271733879 var c = -1732584194 var d = 271733878 for (i = 0; i < x.length; i += 16) { olda = a oldb = b oldc = c oldd = d a = md5ff(a, b, c, d, x[i], 7, -680876936) d = md5ff(d, a, b, c, x[i + 1], 12, -389564586) c = md5ff(c, d, a, b, x[i + 2], 17, 606105819) b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330) a = md5ff(a, b, c, d, x[i + 4], 7, -176418897) d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426) c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341) b = md5ff(b, c, d, a, x[i + 7], 22, -45705983) a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416) d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417) c = md5ff(c, d, a, b, x[i + 10], 17, -42063) b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162) a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682) d = md5ff(d, a, b, c, x[i + 13], 12, -40341101) c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290) b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329) a = md5gg(a, b, c, d, x[i + 1], 5, -165796510) d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632) c = md5gg(c, d, a, b, x[i + 11], 14, 643717713) b = md5gg(b, c, d, a, x[i], 20, -373897302) a = md5gg(a, b, c, d, x[i + 5], 5, -701558691) d = md5gg(d, a, b, c, x[i + 10], 9, 38016083) c = md5gg(c, d, a, b, x[i + 15], 14, -660478335) b = md5gg(b, c, d, a, x[i + 4], 20, -405537848) a = md5gg(a, b, c, d, x[i + 9], 5, 568446438) d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690) c = md5gg(c, d, a, b, x[i + 3], 14, -187363961) b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501) a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467) d = md5gg(d, a, b, c, x[i + 2], 9, -51403784) c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473) b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734) a = md5hh(a, b, c, d, x[i + 5], 4, -378558) d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463) c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562) b = md5hh(b, c, d, a, x[i + 14], 23, -35309556) a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060) d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353) c = md5hh(c, d, a, b, x[i + 7], 16, -155497632) b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640) a = md5hh(a, b, c, d, x[i + 13], 4, 681279174) d = md5hh(d, a, b, c, x[i], 11, -358537222) c = md5hh(c, d, a, b, x[i + 3], 16, -722521979) b = md5hh(b, c, d, a, x[i + 6], 23, 76029189) a = md5hh(a, b, c, d, x[i + 9], 4, -640364487) d = md5hh(d, a, b, c, x[i + 12], 11, -421815835) c = md5hh(c, d, a, b, x[i + 15], 16, 530742520) b = md5hh(b, c, d, a, x[i + 2], 23, -995338651) a = md5ii(a, b, c, d, x[i], 6, -198630844) d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415) c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905) b = md5ii(b, c, d, a, x[i + 5], 21, -57434055) a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571) d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606) c = md5ii(c, d, a, b, x[i + 10], 15, -1051523) b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799) a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359) d = md5ii(d, a, b, c, x[i + 15], 10, -30611744) c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380) b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649) a = md5ii(a, b, c, d, x[i + 4], 6, -145523070) d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379) c = md5ii(c, d, a, b, x[i + 2], 15, 718787259) b = md5ii(b, c, d, a, x[i + 9], 21, -343485551) a = safeAdd(a, olda) b = safeAdd(b, oldb) c = safeAdd(c, oldc) d = safeAdd(d, oldd) } return [a, b, c, d] } /** * Convert an array of little-endian words to a string * * @param {Array<number>} input MD5 Array * @returns {string} MD5 string */ function binl2rstr(input) { var i var output = '' var length32 = input.length * 32 for (i = 0; i < length32; i += 8) { output += String.fromCharCode((input[i >> 5] >>> i % 32) & 0xff) } return output } /** * Convert a raw string to an array of little-endian words * Characters >255 have their high-byte silently ignored. * * @param {string} input Raw input string * @returns {Array<number>} Array of little-endian words */ function rstr2binl(input) { var i var output = [] output[(input.length >> 2) - 1] = undefined for (i = 0; i < output.length; i += 1) { output[i] = 0 } var length8 = input.length * 8 for (i = 0; i < length8; i += 8) { output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << i % 32 } return output } /** * Calculate the MD5 of a raw string * * @param {string} s Input string * @returns {string} Raw MD5 string */ function rstrMD5(s) { return binl2rstr(binlMD5(rstr2binl(s), s.length * 8)) } /** * Calculates the HMAC-MD5 of a key and some data (raw strings) * * @param {string} key HMAC key * @param {string} data Raw input string * @returns {string} Raw MD5 string */ function rstrHMACMD5(key, data) { var i var bkey = rstr2binl(key) var ipad = [] var opad = [] var hash ipad[15] = opad[15] = undefined if (bkey.length > 16) { bkey = binlMD5(bkey, key.length * 8) } for (i = 0; i < 16; i += 1) { ipad[i] = bkey[i] ^ 0x36363636 opad[i] = bkey[i] ^ 0x5c5c5c5c } hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8) return binl2rstr(binlMD5(opad.concat(hash), 512 + 128)) } /** * Convert a raw string to a hex string * * @param {string} input Raw input string * @returns {string} Hex encoded string */ function rstr2hex(input) { var hexTab = '0123456789abcdef' var output = '' var x var i for (i = 0; i < input.length; i += 1) { x = input.charCodeAt(i) output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f) } return output } /** * Encode a string as UTF-8 * * @param {string} input Input string * @returns {string} UTF8 string */ function str2rstrUTF8(input) { return unescape(encodeURIComponent(input)) } /** * Encodes input string as raw MD5 string * * @param {string} s Input string * @returns {string} Raw MD5 string */ function rawMD5(s) { return rstrMD5(str2rstrUTF8(s)) } /** * Encodes input string as Hex encoded string * * @param {string} s Input string * @returns {string} Hex encoded string */ function hexMD5(s) { return rstr2hex(rawMD5(s)) } /** * Calculates the raw HMAC-MD5 for the given key and data * * @param {string} k HMAC key * @param {string} d Input string * @returns {string} Raw MD5 string */ function rawHMACMD5(k, d) { return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d)) } /** * Calculates the Hex encoded HMAC-MD5 for the given key and data * * @param {string} k HMAC key * @param {string} d Input string * @returns {string} Raw MD5 string */ function hexHMACMD5(k, d) { return rstr2hex(rawHMACMD5(k, d)) } /** * Calculates MD5 value for a given string. * If a key is provided, calculates the HMAC-MD5 value. * Returns a Hex encoded string unless the raw argument is given. * * @param {string} string Input string * @param {string} [key] HMAC key * @param {boolean} [raw] Raw output switch * @returns {string} MD5 output */ function md5(string, key, raw) { if (!key) { if (!raw) { return hexMD5(string) } return rawMD5(string) } if (!raw) { return hexHMACMD5(key, string) } return rawHMACMD5(key, string) } if (typeof define === 'function' && define.amd) { define(function () { return md5 }) } else if (typeof module === 'object' && module.exports) { module.exports = md5 } else { $.md5 = md5 } })(this)
    

1
投票
const crypto = require('crypto') var filename = './file.ext' md5Sum = crypto.createHash('md5') s = fs.createReadStream(filename) s.on('data', function(chunk) { md5Sum.update(chunk) }) s.on('end', function() { console.log(md5Sum.digest('hex') + ' ' + filename) })
    

-1
投票
您可以使用轻量级库

pure-md5。 只有 4.7kb。

$("#file-dialog").change(function() { handleFiles(this.files); }); function handleFiles(files) { for (var index = 0; index < files.length; index++) { var file = files[index]; var fileReader = new FileReader(); fileReader.onload = function(e) { $('body').append(` <div style="margin-top: 2rem;"> <span>${file.name}: </span> <span>${(md5(e.target.result))}</span> </div> `); } fileReader.readAsText(file, 'utf-8'); } }
body {
  font-family: sans-serif;
}
<script src="https://unpkg.com/[email protected]/lib/index.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="file" id="file-dialog" multiple="true" accept="image/*">


-2
投票
您可以使用 crypto-js。

要使用 crypto-js,您需要加载 core.js 然后 md5.js 。

URL 列表位于此处

https://cdnjs.com/libraries/crypto-js

cryptojs 也可以在此处以 zip 形式提供

https://code.google.com/archive/p/crypto-js/downloads

2013年回答者“amal”有一个答案,与此类似,但是a)他到md5.js的链接不再有效b)他没有事先加载core.js,这是必要的。

<html> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/components/core.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/md5.js"></script> <script> var hash = CryptoJS.MD5("Message"); console.log(hash); </script> </head> <body> </body> </html>
    
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