Web Front-end
JS Tutorial
JavaScript implements base64 md5 sha1 password encryption_javascript skills
JavaScript implements base64 md5 sha1 password encryption_javascript skills
1. base64 encryption
Introduce the base64.js file into the page, and the calling method is:
<!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 encryption
To reference the md5.js file in the page, the calling method is
<!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 encryption
It is said that this is the most secure encryption
Introducing sha1.js into the page, the calling method is
<!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>Very popular javascript md5 encryption
The MD5 encryption of javascript I saw on the Internet is relatively good, so I excerpted it for reference
<HTML>
<HEAD>
<META http-equiv='Content-Type' content='text/html; charset=gb'>
<TITLE>非常流行的JS的md加密办法</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>
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1664
14
1422
52
1316
25
1267
29
1239
24
Demystifying JavaScript: What It Does and Why It Matters
Apr 09, 2025 am 12:07 AM
JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
The Evolution of JavaScript: Current Trends and Future Prospects
Apr 10, 2025 am 09:33 AM
The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.
JavaScript Engines: Comparing Implementations
Apr 13, 2025 am 12:05 AM
Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.
Python vs. JavaScript: The Learning Curve and Ease of Use
Apr 16, 2025 am 12:12 AM
Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.
JavaScript: Exploring the Versatility of a Web Language
Apr 11, 2025 am 12:01 AM
JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.
How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)
Apr 11, 2025 am 08:22 AM
This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base
Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)
Apr 11, 2025 am 08:23 AM
I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing
From C/C to JavaScript: How It All Works
Apr 14, 2025 am 12:05 AM
The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.
