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# js-sha1
[](https://travis-ci.org/emn178/js-sha1)
[](https://coveralls.io/r/emn178/js-sha1?branch=master)
[](https://nodei.co/npm/js-sha1/)
A simple SHA1 hash function for JavaScript supports UTF-8 encoding.
## Demo
[SHA1 Online](http://emn178.github.io/online-tools/sha1.html)
## Download
[Compress](https://raw.github.com/emn178/js-sha1/master/build/sha1.min.js)
[Uncompress](https://raw.github.com/emn178/js-sha1/master/src/sha1.js)
## Installation
You can also install js-sha1 by using Bower.
bower install js-sha1
For node.js, you can use this command to install:
npm install js-sha1
## Usage
You could use like this:
```JavaScript
sha1('Message to hash');
var hash = sha1.create();
hash.update('Message to hash');
hash.hex();
```
If you use node.js, you should require the module first:
```JavaScript
sha1 = require('js-sha1');
```
It supports AMD:
```JavaScript
require(['your/path/sha1.js'], function(sha1) {
// ...
});
```
## Example
```JavaScript
sha1(''); // da39a3ee5e6b4b0d3255bfef95601890afd80709
sha1('The quick brown fox jumps over the lazy dog'); // 2fd4e1c67a2d28fced849ee1bb76e7391b93eb12
sha1('The quick brown fox jumps over the lazy dog.'); // 408d94384216f890ff7a0c3528e8bed1e0b01621
// It also supports UTF-8 encoding
sha1('中文'); // 7be2d2d20c106eee0836c9bc2b939890a78e8fb3
// It also supports byte `Array`, `Uint8Array`, `ArrayBuffer`
sha1([]); // da39a3ee5e6b4b0d3255bfef95601890afd80709
sha1(new Uint8Array([])); // da39a3ee5e6b4b0d3255bfef95601890afd80709
// Different output
sha1(''); // da39a3ee5e6b4b0d3255bfef95601890afd80709
sha1.hex(''); // da39a3ee5e6b4b0d3255bfef95601890afd80709
sha1.array(''); // [218, 57, 163, 238, 94, 107, 75, 13, 50, 85, 191, 239, 149, 96, 24, 144, 175, 216, 7, 9]
sha1.digest(''); // [218, 57, 163, 238, 94, 107, 75, 13, 50, 85, 191, 239, 149, 96, 24, 144, 175, 216, 7, 9]
sha1.arrayBuffer(''); // ArrayBuffer
```
## License
The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
## Contact
The project's website is located at https://github.com/emn178/js-sha1
Author: Chen, Yi-Cyuan (emn178@gmail.com)
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