js实现md5加密32位大写

最新推荐文章于 2023-12-14 11:25:58 发布

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最新推荐文章于 2023-12-14 11:25:58 发布 · 1.1k 阅读

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#javascript #前端 #开发语言

本文介绍了如何使用JavaScript实现MD5算法，并将结果转化为32位大写形式，主要针对前端开发人员。

javascript实现md5算法32位

大小写代码片.

function MD5(instring) {
   
   
	var hexcase = 0;   /* hex output format. 0 - lowercase; 1 - uppercase        */
	var b64pad = "";  /* base-64 pad character. "=" for strict RFC compliance   */

	/*
		* These are the functions you'll usually want to call
		* They take string arguments and return either hex or base-64 encoded strings
		*/
	function hex_md5(s) {
   
    return rstr2hex(rstr_md5(str2rstr_utf8(s))); }
	function b64_md5(s) {
   
    return rstr2b64(rstr_md5(str2rstr_utf8(s))); }
	function any_md5(s, e) {
   
    return rstr2any(rstr_md5(str2rstr_utf8(s)), e); }
	function hex_hmac_md5(k, d) {
   
    return rstr2hex(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
	function b64_hmac_md5(k, d) {
   
    return rstr2b64(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
	function any_hmac_md5(k, d, e) {
   
    return rstr2any(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d)), e); }

	/*
		* Perform a simple self-test to see if the VM is working
		*/
	function md5_vm_test() {
   
   
		return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72";
	}

	/*
		* Calculate the MD5 of a raw string
		*/
	function rstr_md5(s) {
   
   
		return binl2rstr(binl_md5(rstr2binl(s), s.length * 8));
	}

	/*
		* Calculate the HMAC-MD5, of a key and some data (raw strings)
		*/
	function rstr_hmac_md5(key, data) {
   
   
		var bkey = rstr2binl(key);
		if (bkey.length > 16) bkey = binl_md5(bkey, key.length * 8);

		var ipad = Array(16), opad = Array(16);
		for (var i = 0; i < 16; i++) {
   
   
			ipad[i] = bkey[i] ^ 0x36363636;
			opad[i] = bkey[i] ^ 0x5C5C5C5C;
		}

		var hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
		return binl2rstr(binl_md5(opad.concat(hash), 512 + 128));
	}

	/*
		* Convert a raw string to a hex string
		*/
	function rstr2hex(input) {
   
   
		try {
   
    hexcase } catch (e) {
   
    hexcase = 0; }
		var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
		var output = "";
		var x;
		for (var i = 0; i < input.length; i++) {
   
   
			x = input.charCodeAt(i);
			output += hex_tab.charAt((x >>> 4) & 0x0F)
				+ hex_tab.charAt(x & 0x0F);
		}
		return output;
	}

	/*
		* Convert a raw string to a base-64 string
		*/
	function rstr2b64(input) {
   
   
		try {
   
    b64pad } catch (e) {
   
    b64pad = ''; }
		var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
		var output = "";
		var len = input.length;
		for (var i = 0; i < len; i += 3) {
   
   
			var triplet = (input.charCodeAt(i) << 16)
				| (i + 1 < len ? input.charCodeAt(i + 1) << 8 : 0)
				| (i + 2 < len ? input.charCodeAt(i + 2) : 0);
			for (var j = 0; j < 4; j++) {
   
   
				if (i * 8 + j * 6 > input.length * 8) output += b64pad;
				else output += tab.charAt((triplet >>> 6 * (3 - j)) & 0x3F);
			}
		}
		return output;
	}

	/*
		* Convert a raw string to an arbitrary string encoding
		*/
	function rstr2any(input, encoding

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