functionToGenerateMD5hash这段代码怎么写？我已经有了fileVideo，我需要通过单击按钮将相应的 md5 哈希发送到服务器。
$("#someButton").click(function() {
var fr = new FileReader();
fr.onload = function(e) {
string md5 = functionToGenerateMD5hash(e.target.result);
// send md5 here
};
fr.readAsArrayBuffer(fileVideo);
另外，您可以使用它在 Node.js 中生成 MD5 哈希吗？
如果您不想使用库或其他东西，可以使用这种原生 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()和encodeURIComponent()方法。
CryptoJS是一个加密库，可以生成 md5 哈希等：
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());
Github：https ://github.com/brix/crypto-js
CDN：https ://cdnjs.com/libraries/crypto-js
你可以使用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，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"));
另一个工作的 JS Fiddle 在这里
作为当代的替代方案，现在有一个客户端加密标准。这具有由浏览器本身优化的优点。
取自文档中的示例：
async function sha256(message) {
// encode as UTF-8
const msgBuffer = new TextEncoder('utf-8').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 之类的支持。
这些也可能在服务器端进行计算。
这里有一些关于使用的文档：https ://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest
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，例如098F6BCD4621D373CADE4E832627B4F6.
对于简单的字母数字字符串，您可以像这样运行它：
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unescape和encodeURIComponent ：
md5(unescape(encodeURIComponent('')))
为@valdeci和@Derzu版本添加了Unicode 支持。
它也可以用于 md5 化 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
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)
})
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;它可以在这个要点 https://github.com/blueimp/JavaScript-MD5/blob/master/js/md5.js上作为函数找到
/*
* 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)
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/pure-md5@0.1.9/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/*">你可以使用crypto-js。
要使用 crypto-js，您需要先加载 core.js，然后再加载 md5.js。
URL 列表在这里https://cdnjs.com/libraries/crypto-js
cryptojs 也可以在此处以 zip 形式获得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 a）他与 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>