ripemd160

What is ripemd160?

The ripemd160 npm package is a JavaScript implementation of the RIPEMD-160 cryptographic hash function. It allows users to generate 160-bit hash values from input data. This hash function is commonly used for integrity checks, digital signatures, and other cryptographic operations.

What are ripemd160's main functionalities?

Hashing Data

This feature allows users to create a RIPEMD-160 hash of any given string or buffer. The example code demonstrates how to hash the string 'hello world' and output the result in hexadecimal format.

"use strict";\nconst ripemd160 = require('ripemd160');\nconst hash = new ripemd160().update('hello world').digest('hex');\nconsole.log(hash); // Outputs the RIPEMD-160 hash of 'hello world' in hexadecimal format

Other packages similar to ripemd160

sha1

The sha1 package is another npm package that provides a JavaScript implementation of the SHA-1 hash function. SHA-1 is also a cryptographic hash function but produces a 160-bit hash value, similar in length to RIPEMD-160. However, SHA-1 is considered less secure than RIPEMD-160 due to vulnerabilities that have been discovered over time.

sha256

The sha256 package is used for computing SHA-256 hashes. SHA-256 is part of the SHA-2 family of cryptographic hash functions and produces a 256-bit hash. It is more secure than both RIPEMD-160 and SHA-1, but it generates a longer hash value.

md5

The md5 package is a JavaScript implementation of the MD5 hash function. MD5 produces a 128-bit hash value and is widely used for checksums and fingerprints. However, MD5 is considered cryptographically broken and unsuitable for further use due to its vulnerabilities to collision attacks.

README

ripemd160

JavaScript component to compute the RIPEMD-160 hash of strings or bytes. This hash is commonly used in crypto currencies like Bitcoin.

Usage

Install

npm install --save ripemd160

ripemd160(input)

input should be either a string, Buffer, or an Array. It returns a Buffer.

example 1:

var ripemd16 = require('ripemd160')

var data = 'hello'
var result = ripemd160(data)
console.log(result.toString('hex'))
// => 108f07b8382412612c048d07d13f814118445acd

** example 2**:

var ripemd16 = require('ripemd160')

var data = new Buffer('hello', 'utf8')
var result = ripemd160(data)
console.log(result.toString('hex'))
// => 108f07b8382412612c048d07d13f814118445acd

converting Buffers

If you're not familiar with the Node.js ecosystem, type Buffer is a common way that a developer can pass around binary data. Buffer also exists in the Browserify environment. Converting to and from Buffers is very easy.

to buffer

// from string
var buf = new Buffer('some string', 'utf8')

// from hex string
var buf = new Buffer('3f5a4c22', 'hex')

// from array
var buf = new Buffer([1, 2, 3, 4])

from buffer

// to string
var str = buf.toString('utf8')

// to hex string
var hex = buf.toString('hex')

// to array
var arr = [].slice.call(buf)

Testing

Install dev deps:

npm install --development

Test in Node.js:

npm run test

Test in a Browser:

Testing in the browser uses the excellent Mochify. Mochify can use either PhantomJS or an actual browser. You must have Selenium installed if you want to use an actual browser. The easiest way is to npm install -g start-selenium and then run start-selenium.

Then run:

npm run browser-test

License

Licensed: BSD3-Clause