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jsrsasign478,0823,321880 kB27a year agoMIT
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jsrsasign is a JavaScript library that provides a comprehensive set of tools for cryptographic operations, including signing and verifying JSON Web Tokens (JWT), handling X.509 certificates, and performing various cryptographic algorithms. It is widely used for secure data transmission and authentication in web applications. While jsrsasign is a robust solution for cryptographic needs, there are several alternatives available in the JavaScript ecosystem. Here are a few notable ones:

  • crypto-js is a widely used library that provides a variety of cryptographic algorithms, including hashing, encryption, and decryption. It is lightweight and easy to use, making it a popular choice for developers who need basic cryptographic functions in their applications. If you require simple cryptographic operations without the complexity of a full-fledged library, crypto-js is a great option.
  • jsencrypt is a lightweight library specifically designed for RSA encryption and decryption in JavaScript. It allows developers to easily encrypt and decrypt messages using public and private keys. If your application requires secure communication using RSA, jsencrypt is a straightforward choice that simplifies the process of implementing RSA encryption.
  • jsonwebtoken is a library focused on creating and verifying JSON Web Tokens (JWT). It is widely used for authentication and information exchange in web applications. If your primary need is to handle JWTs, jsonwebtoken provides a simple and effective way to sign, verify, and decode tokens, making it a popular choice for developers working with authentication.
  • node-jose is a library that provides tools for working with JSON Object Signing and Encryption (JOSE). It supports various cryptographic operations, including signing, verifying, encrypting, and decrypting JSON data. If you need a comprehensive solution for JOSE, node-jose is a powerful library that can handle complex cryptographic scenarios.

For a detailed comparison of these libraries, check out the following link: Comparing crypto-js vs jsencrypt vs jsonwebtoken vs jsrsasign vs node-jose.

README for jsrsasign

jsrsasign

license bower npm version npm downloads jsdeliver downloads CDNJS githubsponsors cryptocurrency

jsrsasign TOP | github | Wiki | DOWNLOADS | TUTORIALS | API REFERENCE | Online Tool | DEMO | NODE TOOL | AddOn | DONATE

The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES JSON Web Signature/Token/Key in pure JavaScript.

Public page is https://kjur.github.io/jsrsasign .

Your bugfix and pull request contribution are always welcomed :)

NOTICE FOR COMMING 11.0.0 RELEASE

The "jsrsasign" library is a long lived JavaScript library from 2010 developed with old JavaScript style and backword compatibility. From coming release 11.0.0, following are planed and suport them gradually:

  • Stop to support Internet Explorer.
  • Stop to support bower.
  • Modern ECMA functions will be introduced such as Promise, let, Array methods or class.
  • API document generator will be changed from Jsdoc Toolkit to JSDoc3.
  • Module bandler will be used such as browserify or webpack.
  • Not to use YUI compressor.
  • Unit test framework will be changed from QUnit and mocha to jest.
  • W3C Web Crypto API support.
  • split into some modules besides jsrsasign have been all in package before 11.0.0.

NEWS

  • 2023-Mar-12: 10.7.0 Release. Now supports custom X.509 extension and custom OIDs by new "Add-on" architecture. (See here in detail)
  • 2021-Nov-21: 10.5.0 Release. Now supports secp521r1(P-521) ECDSA.
  • 2021-Apr-14: Security advisory and update for CVE-2021-30246 RSA signature validation vulnerability published
  • 2020-Oct-05: jsrsasign won Google Open Source Peer Bonus Award. Thank you Google.
  • 2020-Sep-23: 10.0.0 released for CMS SignedData related class including timestamp and CAdES architecture update
  • 2020-Aug-24: 9.1.0 released to new CRL APIs align with certificate
  • 2020-Aug-19: 9.0.0 released for major update of certificate and CSR generation and parsing without backward compatibility. Please see migration guide in detail.
  • 2020-Aug-02: twitter account @jsrsasign started for announcement. please follow.

HIGHLIGHTS

  • Swiss Army Knife style all in one package crypto and PKI library
  • available on Node.js and browsers
  • Long live open source software from 2010
  • very easy API to use
  • powerful various format key loader and ASN.1 API
  • rich document and samples
  • no dependency to other library
  • no dependency to W3C Web Cryptography API nor OpenSSL
  • no dependency on newer ECMAScirpt function. So old browsers also supported.
  • very popular crypto library with 1M+ npm downloads/month
  • supports "Add-on" architecture

INSTALL

Node NPM

> npm install jsrsasign jsrsasign-util

Bower

> bower install jsrsasign

Or include in HTML from many CDN sites

> <script src="https://cdnjs.cloudflare.com/ajax/libs/jsrsasign/8.0.20/jsrsasign-all-min.js"></script>

USAGE

Loading encrypted PKCS#5 private key:

> var rs = require('jsrsasign');
> var rsu = require('jsrsasign-util');
> var pem = rsu.readFile('z1.prv.p5e.pem');
> var prvKey = rs.KEYUTIL.getKey(pem, 'passwd');

Sign string 'aaa' with the loaded private key:

> var sig = new a.Signature({alg: 'SHA1withRSA'});
> sig.init(prvKey);
> sig.updateString('aaa');
> var sigVal = sig.sign();
> sigVal
'd764dcacb...'

MORE TUTORIALS AND SAMPLES

RECENT SECURITY ADVISORY

|published|fixed version|title/advisory|CVE|CVSS| |:---|:---|:---|:---|:---| |2022Jun24|10.5.25|JWS and JWT signature validation vulnerability with special characters|CVE-2022-25898|?| |2021Apr14|10.2.0|RSA signature validation vulnerability on maleable encoded message|CVE-2021-30246|9.1| |2020Jun22|8.0.19|ECDSA signature validation vulnerability by accepting wrong ASN.1 encoding|CVE-2020-14966|5.5| |2020Jun22|8.0.18|RSA RSAES-PKCS1-v1_5 and RSA-OAEP decryption vulnerability with prepending zeros|CVE-2020-14967|4.8| |2020Jun22|8.0.17|RSA-PSS signature validation vulnerability by prepending zeros|CVE-2020-14968|4.2|

Here is full published security advisory list.

DONATIONS

If you like jsrsasign and my other project, you can support their development by donation through any of the platform/services below. Thank you as always.

Github Sponsors

You can sponsor jsrsasign with the GitHub Sponsors program.

Cryptocurrency

You can donate cryptocurrency to jsrsasign using the following addresses:

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