jsrsasign

FEATURES

• Signature - RSA/RSAPSS/ECDSA/DSA digital signtature class wrapper of Java JCE style
• MessageDigest - cryptographic hash calculation class wrapper of Java JCE style
• MAC - message authentication code hash calculation class wrapper of Java JCE style
• ASN.1 encoder/generator
• ASN.1 structure for X.509 ceritificate and CRL generation
• simple ASN.1 data parser
• simple X.509 certificate parser/reader
• KEYUTIL - loading RSA/EC/DSA private/public key from PEM formatted PKCS#1/5/8 and X.509 certificate
• Supported formats and algorithms are listed here.

NEWS

2013-Oct-12:

Release 4.2.1 is now available.

• Add generic PEM private/public key exporting method KEYUTIL.getPEM and it provides support to export to PEM PKCS#8 encrypted private key.

2013-Oct-07:

Node.js npm module of jsrsasign is now registered in the repository. It also includes 'jsjws'.

2013-Oct-06:

Release 4.2.0 is now available.

• DSA/ECDSA algorithms is now supported most of class and methods like Signature, KEYUTIL, KJUR.asn1.x509 DSA
• KJUR.asn1.x509.X509Util.newCertPEM method to provide easy issuance of a certificate by JSON data.

2013-Oct-02:

Release 4.1.6 is now available.

• DSA signature algorithm support (However Signature and KEYUTIL class don't support yet)
• KEYUTIL.generateKeypair method added
• ASN1Util.jsonToASN1HEX method added
• HmacSHA384 support

2013-Sep-23:

Release 4.1.3 is now available.

• ASNUtil.newObject update for tagged object
• PKCS5PKEY class was moved to KEYUTIL class and KEYUTIL class has more generic getKey() method.

2013-Sep-12:

Release 4.1.2 is now available.

• new ASNUtil.newObject method for easy ASN.1 Object generation. Please see API document and test codes for usage.
• Minimized all in one code jsrsasign-4.1.2-all-min.js is also provided.

2013-Aug-25:

Release 4.1.0 is now available.

• RSAPSS support in Signature class.
• add useful init() method for Signature class
• add ECDSA support and getKey methods to PKCS5PKEY class

2013-Aug-17:

Release 4.0.5 is now available.

• Message authentication code (MAC) class added.

2013-Jul-23:

Release 4.0.2 is now available.

• RSAPSS signing and validation fix by Davegithub.com/davedoesdev)

2013-Jul-18:

Release 4.0.0 is now available.

• ECC key generation and ECDSA signing and verification support
• Currently supports secp256r1, secp256k1 and secp384r1 curves
• You can specify other curves such like secp192r1 or NIST P-521 however it can't be signed nor verified properly with other curves. I appreciate if you fix the bugs.

2013-May-29:

Release 3.1.3 is now available.

• Stanford JavaScript Crypto Library support in MessageDigest class.

2013-May-27:

Release 3.1.2 is now available.

• add some methods to 'pkcs5pkey.js' to load encrypted PKCS#8 PEM private key.

2013-May-20:

Release 3.1.1 is now available.

• add some methods to 'pkcs5pkey.js' to generate encrypted PKCS#5 PEM private key.

2013-May-16:

Release 3.1.0 is now available.

• CRL class added to issue CRL.

ONLINE TOOL & DEMO

• JavaScript Certification Authority
• Encrypted PKCS#5 Private Key Viewer
• Online Certificate Viewer

• Sample Application for ECDSA signing with JavaScript(NEW!!!)
• Sample Application for RSA signing with JavaScript
  
  

DOWNLOAD

• Use git to clonse the official jsrsasign repository

  git clone git://github.com/kjur/jsrsasign.git

• Alternatively, you can download a zip file for the latest development version or a previous releases.

SOURCE CODES

The 'jsrsasign' library contains following source codes.

• asn1.js - ASN.1 DER primitive encoder class. (mini)
• asn1x509.js - ASN.1 structured for X.509 certificate. (mini)
• crypto.js - MessageDigest and Signature class like Java JCE. (mini)
• pkcs5pkey.js - encrypted PKCS#5 private key reader. (mini)
• rsasign.js - RSAKey class extension for RSA signing and verification. (mini)
• x509.js - X509 class to read subject public key from a PEM formatted X.509 certificate. (mini)
• rsapem.js - RSAKey class extension to read PKCS#1 RSA private key PEM file (mini)
• asn1hex.js - simple ASN.1 parser to read hexadecimal encoded ASN.1 DER (mini)
• ecdsa-modified.js - modified version of BitcoinJS ECDSA codes (mini)
• ecparam.js - ECC parameters (mini)

API DOCUMENT

LICENSE

• LICENSE.txt - RSA-Sign JavaScript Library LICENSE

PROGRAMMING TUTORIALS

• MessageDigest class tutorial
• Signature class tutorial
• ASN1 DER Primitive Encoder tutorial
• ASN.1 structure classes for X.509 certificate tutorial
• Reading PKCS#5 RSA private key with password tutorial
• Signing and verifying with RSAKey extension (*DEPRECATED*)
• List of programming tutorials

MY RELATED PROJECT

• jsjws - JSON Web Signature(JWS) JavaScript Library

PROJECTS THAT USE JSRSASIGN

jwcrypto

JavaScript implementation of JWS, JWT and JWC. The jycrypto is also used by Mozilla BrowserID/Persona. (used here)

jwt-js

JSON Web Tokens implemented in pure JavaScript. (used here)

npm node-bignumber

A pure javascript implementation of BigIntegers and RSA crypto for Node.js (used here)

npm bignumber-jt

A pure javascript implementation of BigIntegers and RSA crypto. (used here)

NDN.JS

a JavaScript client library for Named Data Networking of Univ. of Memphis. (used here)

cryptio

An easy-to-use encryption system utilizing RSA and AES for javascript. (used here)

jspackcrx

Package Chrome extension files using pure JavaScript. (used here)

xml-signer

xmldsig signatures in a browser (used here)

DEPENDENCY

• Tom Wu's jsbn library - BigInteger, RSA and ECC
• BitcoinJS library - ECDSA signature algorithm
• CryptoJS - symmetric key encryption algorithms, message digest, message authentication codes and PBKDF
• OpenPGP.js - DSA signature algorithm
• Yahoo YUI library - for class inheritance