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javascript實(shí)現(xiàn)base64 md5 sha1 密碼加密

更新時間：2015年09月09日 11:04:57 作者：haorooms

本篇文章給大家介紹了javascript實(shí)現(xiàn)密碼加密，通過base64、md5、sha1文件，調(diào)用相關(guān)方法實(shí)現(xiàn)密碼加密，非常簡單，需要的朋友可以參考下

1、base64加密

　　在頁面中引入base64.js文件，調(diào)用方法為：

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>base64加密</title>
<script type="text/javascript" src="base64.js"></script>
<script type="text/javascript"> 
 var b = new Base64(); 
 var str = b.encode("admin:admin"); 
 alert("base64 encode:" + str); 
　　　　　//解密
 str = b.decode(str); 
 alert("base64 decode:" + str); 
</script> 
</head>
<body>
</body>
</html>

2、md5加密

　　在頁面中引用md5.js文件，調(diào)用方法為

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>md5加密</title>
<script type="text/ecmascript" src="md5.js"></script>
<script type="text/javascript"> 
 var hash = hex_md5("123dafd");
 alert(hash)
</script> 
</head>
<body>
</body>
</html>

3、sha1加密

　　據(jù)說這是最安全的加密

　　頁面中引入sha1.js，調(diào)用方法為

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>sha1加密</title>
<script type="text/ecmascript" src="sha1.js"></script>
<script type="text/javascript">
 var sha = hex_sha1('mima123465')
 alert(sha) 
</script> 
</head>
<body>
</body>
</html>

文章所包含的加密下載地址：

文中所含的js文件打包下載地址

下面給大家補(bǔ)充點(diǎn)知識：非常流行的javascript的md5加密

在網(wǎng)上看到的javascript的MD5加密，看比較好，就摘錄了，供參考

 <HTML>
 <HEAD>
 <META http-equiv='Content-Type' content='text/html; charset=gb'>
 <TITLE>非常流行的JS的md加密辦法</TITLE>
 </HEAD>
 <BODY >
 <input id=test value=webasp>
 <input type=button value=md onclick="alert(hex_md(test.value))">
 <script>
 var hexcase = ; /* hex output format. - lowercase; - uppercase */
 var bpad = ""; /* base- pad character. "=" for strict RFC compliance */
 var chrsz = ; /* bits per input character. - ASCII; - Unicode */
 /*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base- encoded strings
 */
 function hex_md(s){ return binlhex(core_md(strbinl(s), s.length * chrsz));}
 function b_md(s){ return binlb(core_md(strbinl(s), s.length * chrsz));}
 function hex_hmac_md(key, data) { return binlhex(core_hmac_md(key, data)); }
 function b_hmac_md(key, data) { return binlb(core_hmac_md(key, data)); }
 /* Backwards compatibility - same as hex_md() */
 function calcMD(s){ return binlhex(core_md(strbinl(s), s.length * chrsz));}
 /* 
 * Perform a simple self-test to see if the VM is working 
 */
 function md_vm_test()
 {
 return hex_md("abc") == "cdfbdfdef";
 }
 /*
 * Calculate the MD of an array of little-endian words, and a bit length
 */
 function core_md(x, len)
 {
 /* append padding */
 x[len >> ] |= x << ((len) % );
 x[(((len + ) >>> ) << ) + ] = len;
 var a = ;
 var b = -;
 var c = -;
 var d = ;
 for(var i = ; i < x.length; i += )
 {
 var olda = a;
 var oldb = b;
 var oldc = c;
 var oldd = d;
 a = md_ff(a, b, c, d, x[i+ ], , -);
 d = md_ff(d, a, b, c, x[i+ ], , -);
 c = md_ff(c, d, a, b, x[i+ ], , );
 b = md_ff(b, c, d, a, x[i+ ], , -);
 a = md_ff(a, b, c, d, x[i+ ], , -);
 d = md_ff(d, a, b, c, x[i+ ], , );
 c = md_ff(c, d, a, b, x[i+ ], , -);
 b = md_ff(b, c, d, a, x[i+ ], , -);
 a = md_ff(a, b, c, d, x[i+ ], , );
 d = md_ff(d, a, b, c, x[i+ ], , -);
 c = md_ff(c, d, a, b, x[i+], , -);
 b = md_ff(b, c, d, a, x[i+], , -);
 a = md_ff(a, b, c, d, x[i+], , );
 d = md_ff(d, a, b, c, x[i+], , -);
 c = md_ff(c, d, a, b, x[i+], , -);
 b = md_ff(b, c, d, a, x[i+], , );
 a = md_gg(a, b, c, d, x[i+ ], , -);
 d = md_gg(d, a, b, c, x[i+ ], , -);
 c = md_gg(c, d, a, b, x[i+], , );
 b = md_gg(b, c, d, a, x[i+ ], , -);
 a = md_gg(a, b, c, d, x[i+ ], , -);
 d = md_gg(d, a, b, c, x[i+], , );
 c = md_gg(c, d, a, b, x[i+], , -);
 b = md_gg(b, c, d, a, x[i+ ], , -);
 a = md_gg(a, b, c, d, x[i+ ], , );
 d = md_gg(d, a, b, c, x[i+], , -);
 c = md_gg(c, d, a, b, x[i+ ], , -);
 b = md_gg(b, c, d, a, x[i+ ], , );
 a = md_gg(a, b, c, d, x[i+], , -);
 d = md_gg(d, a, b, c, x[i+ ], , -);
 c = md_gg(c, d, a, b, x[i+ ], , );
 b = md_gg(b, c, d, a, x[i+], , -);
 a = md_hh(a, b, c, d, x[i+ ], , -);
 d = md_hh(d, a, b, c, x[i+ ], , -);
 c = md_hh(c, d, a, b, x[i+], , );
 b = md_hh(b, c, d, a, x[i+], , -);
 a = md_hh(a, b, c, d, x[i+ ], , -);
 d = md_hh(d, a, b, c, x[i+ ], , );
 c = md_hh(c, d, a, b, x[i+ ], , -);
 b = md_hh(b, c, d, a, x[i+], , -);
 a = md_hh(a, b, c, d, x[i+], , );
 d = md_hh(d, a, b, c, x[i+ ], , -);
 c = md_hh(c, d, a, b, x[i+ ], , -);
 b = md_hh(b, c, d, a, x[i+ ], , );
 a = md_hh(a, b, c, d, x[i+ ], , -);
 d = md_hh(d, a, b, c, x[i+], , -);
 c = md_hh(c, d, a, b, x[i+], , );
 b = md_hh(b, c, d, a, x[i+ ], , -);
 a = md_ii(a, b, c, d, x[i+ ], , -);
 d = md_ii(d, a, b, c, x[i+ ], , );
 c = md_ii(c, d, a, b, x[i+], , -);
 b = md_ii(b, c, d, a, x[i+ ], , -);
 a = md_ii(a, b, c, d, x[i+], , );
 d = md_ii(d, a, b, c, x[i+ ], , -);
 c = md_ii(c, d, a, b, x[i+], , -);
 b = md_ii(b, c, d, a, x[i+ ], , -);
 a = md_ii(a, b, c, d, x[i+ ], , );
 d = md_ii(d, a, b, c, x[i+], , -);
 c = md_ii(c, d, a, b, x[i+ ], , -);
 b = md_ii(b, c, d, a, x[i+], , );
 a = md_ii(a, b, c, d, x[i+ ], , -);
 d = md_ii(d, a, b, c, x[i+], , -);
 c = md_ii(c, d, a, b, x[i+ ], , );
 b = md_ii(b, c, d, a, x[i+ ], , -);
 a = safe_add(a, olda);
 b = safe_add(b, oldb);
 c = safe_add(c, oldc);
 d = safe_add(d, oldd);
 }
 return Array(a, b, c, d);
}
/*
 * These functions implement the four basic operations the algorithm uses.
 */
function md_cmn(q, a, b, x, s, t)
{
 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md_ff(a, b, c, d, x, s, t)
{
 return md_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md_gg(a, b, c, d, x, s, t)
{
 return md_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md_hh(a, b, c, d, x, s, t)
{
 return md_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md_ii(a, b, c, d, x, s, t)
{
 return md_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
/*
 * Calculate the HMAC-MD, of a key and some data
 */
function core_hmac_md(key, data)
{
 var bkey = strbinl(key);
 if(bkey.length > ) bkey = core_md(bkey, key.length * chrsz);
 var ipad = Array(), opad = Array();
 for(var i = ; i < ; i++) 
 {
 ipad[i] = bkey[i] ^ x;
 opad[i] = bkey[i] ^ xCCCC;
 }
 var hash = core_md(ipad.concat(strbinl(data)), + data.length * chrsz);
 return core_md(opad.concat(hash), + );
}
/*
 * Add integers, wrapping at ^. This uses -bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
 var lsw = (x & xFFFF) + (y & xFFFF);
 var msw = (x >> ) + (y >> ) + (lsw >> );
 return (msw << ) | (lsw & xFFFF);
}
/*
 * Bitwise rotate a -bit number to the left.
 */
function bit_rol(num, cnt)
{
 return (num << cnt) | (num >>> ( - cnt));
}
/*
 * Convert a string to an array of little-endian words
 * If chrsz is ASCII, characters > have their hi-byte silently ignored.
 */
function strbinl(str)
{
 var bin = Array();
 var mask = ( << chrsz) - ;
 for(var i = ; i < str.length * chrsz; i += chrsz)
 bin[i>>] |= (str.charCodeAt(i / chrsz) & mask) << (i%);
 return bin;
}
/*
 * Convert an array of little-endian words to a hex string.
 */
function binlhex(binarray)
{
 var hex_tab = hexcase ? "ABCDEF" : "abcdef";
 var str = "";
 for(var i = ; i < binarray.length * ; i++)
 {
 str += hex_tab.charAt((binarray[i>>] >> ((i%)*+)) & xF) +
 hex_tab.charAt((binarray[i>>] >> ((i%)* )) & xF);
 }
 return str;
}
/*
 * Convert an array of little-endian words to a base- string
 */
function binlb(binarray)
{
 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/";
 var str = "";
 for(var i = ; i < binarray.length * ; i += )
 {
 var triplet = (((binarray[i >> ] >> * ( i %)) & xFF) << )
 | (((binarray[i+ >> ] >> * ((i+)%)) & xFF) << )
 | ((binarray[i+ >> ] >> * ((i+)%)) & xFF);
 for(var j = ; j < ; j++)
 {
 if(i * + j * > binarray.length * ) str += bpad;
 else str += tab.charAt((triplet >> *(-j)) & xF);
 }
 }
 return str;
}
</script> 
</BODY></HTML>

以上所述是小編給大家介紹的javascript實(shí)現(xiàn)base64 md5 sha1 密碼加密，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對腳本之家網(wǎng)站的支持！

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