Jul 22, 2018  RSA Key Generation using Javascript. The public key consists of the modulus n and the public (or encryption) exponent e. The private key consists of the private (or decryption) exponent d.

1. Pgp Key
2. Private Key Encryption
3. Secret Key

• Dec 10, 2017  Public Key Cryptography. In contrast to symmetric encryption, public key cryptography (asymmetric encryption) uses pairs of keys (one public, one private) instead of a single shared secret - public keys are for encrypting data, and private keys are for decrypting data. A public key is like an open box with an unbreakable lock. If someone wants.
• This module demonstrates step-by-step encryption or decryption with the RSA method. The sender uses the public key of the recipient for encryption; the recipient uses his associated private key to decrypt. Prime factors. The security of RSA is based on the fact that it is easy to calculate the product n of two large primes p and q.
• Jun 27, 2012  RSA Public Key Cryptography in Javascript. Contribute to blittle/rsajs development by creating an account on GitHub. RSA Public Key Cryptography in Javascript. Contribute to blittle/rsajs development by creating an account on GitHub.

I was recently in a meeting where a person needed to generate a private andpublic key for RSA encryption, but they were using a PC (Windows). This is somethingthat is easily done via a terminal using ssh-keygen on Mac and Linux, however on Windows…this tool is not easily accessible to the non-technical person.

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It then occurred to me (and a head slapped followed), that I have fairly recentlypublished a library for Javascript RSA encryption which includes private andpublic key generation for RSA encryption. Not only that, but this is allavailable online.

So, if anyone needs an online RSA key generator, look no further than http://travistidwell.com/jsencrypt/demo.

This directly maps to the Open Source GitHub repository found at https://github.com/travist/jsencrypt, soanyone can modify this website to make it better.

And here is an iframe of the RSA key generation tool.

FEATURES

The 'jsrsasign' library provides following features in pure JavaScript.

• Signature - RSA/RSAPSS/ECDSA/DSA digital signature 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
• KEYUTIL - loading RSA/EC/DSA private/public key from PEM formatted PKCS#1/5/8 and X.509 certificate
• JSON Web Signature(JWS),JSON Web Token(JWT) andJSON Web Key(JWK)
• Supported formats and algorithms are listed here.

NEWS

2017-Jun-30:

Release 8.0.0 is now available.All deprecated methods, classes and files are removed andall-min.js file get smaller size.

2017-May-21:

Release 7.2.0 is now available.Major refactoring before major release update.Making Many long name methods deprecated andnew short name methods are provided to reducing file size.

2017-Mar-15:

NOTICE: Some people complains that 'jsrsasign' is too huge to use in the web sites.The 'jsrsasign' is 'swiss army knife' style crypto library which has a lot of functionality some users may think not necessary.So I'm planning to remove all of deprecated codes in the next major release 3 month later (may be 8.0.0 in July) to to shrink size. Until then please use subset package.Thanks.

2016-Nov-03:

Release 6.2.0 is now available.Cipher class added.

2016-Sep-24:

Release 6.1.0 is now available.RFC 6960OCSP protocol support added.

2016-Sep-11:

Release 6.0.0 is now available.Now 'jsrsasign' become 'fs' safe so that it will be available for CommonJS or Webpack.

2016-Sep-03:

Slides for jsrsasign introduction is available.

2016-Feb-28:

Release 5.0.6 is now available.Now jsrsasign can be used in strict mode (--use_strict) of Node.JS.

2015-Nov-23:

Release 5.0.4 is now available.There is no library and npm update but sample Node scripts are added. Especially I hope jwtverify tool is very useful for JOSE guys :).

2015-Nov-11:

Release 5.0.2 is now available.RFC 7638 JWK thumbprintsupported.Some file read/save functions added for Node.jsin nodeutil.js.

Old news is here.

DOWNLOAD

• Use git to clone the official jsrsasign repository

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

• Install from bower

  bower install jsrsasign

• Install from NPM

  npm install jsrsasign

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

See 'ChangeLog.txt' in detail.

API DOCUMENT

The 'jsrsasign'(RSA-Sign JavaScript Library) JavaScript APIdocument is available here.

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LICENSE

The 'jsrsasign'(RSA-Sign JavaScript Library) is licensed under the terms of the MIT license reproduced which is simple and easy to understand and places almost no restrictions.

PROGRAMMING TUTORIALS

You can see the list of QUnit unit tests here and I hope they help you understand 'jsrsasign' library and APIs.

PROJECTS THAT USE JSRSASIGN

Private Key Encryption

jwcrypto

JavaScript implementation of JWS, JWT and JWC. The jycrypto is also used byMozilla 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)

cryptico

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

Secret Key

• 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
• Yahoo YUI library - for class inheritance