sha1

a native js function for hashing messages with the SHA-1 algorithm

Installation

npm install sha1

or

ender build sha1

Example

var sha1 = require('sha1');

sha1("message");

This will return the string:

"6f9b9af3cd6e8b8a73c2cdced37fe9f59226e27d"

API

sha1(msg)

Returns the SHA-1 hash of the given message.

• msg String -- the message that you want to hash.

It's as simple as that.

sha1(msg, options)

Returns the binary string or bytes array representation of SHA-1 hash for msg, based on options. There are two mutually exclusive option flags:

• asString true -- return binary string from digest bytes
• asBytes true -- return array of digest bytes

with empty options object, default output is hex-encoded string of digest bytes.

Examples

The following examples demonstate three possible outputs formats.

Get bytes array and put into buffer (straightforward):

var hash_bytes = sha1("message", {asBytes: true});
var result = new Buffer(hash_bytes);

Get binary string and decode into buffer as digest bytes:

var hash_binary = sha1("message", {asString: true});
var result = new Buffer(hash_binary, 'binary');

Get default hex-encoded output and decode into buffer as digest bytes:

var hash_text = sha1("message", {});
var result = new Buffer(hash_text, 'hex');

Credits

This function is taken from CryptoJS. This package only provides easy access to a javascript-only version of the SHA-1 algorithm over npm.

License

(New BSD License / BSD 3-Clause License)

Copyright © 2009, Jeff Mott. All rights reserved.
Copyright © 2011, Paul Vorbach. All rights reserved.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
  list of conditions and the following disclaimer in the documentation and/or
  other materials provided with the distribution.
* Neither the name Crypto-JS nor the names of its contributors may be used to
  endorse or promote products derived from this software without specific prior
  written permission.

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