pidcrypt

Pidcrypt (JS encryption library) for node.js/browserify

Update 2022: I no longer use or maintain this library. While I will try to merge PRs, CryptoJS is probably a better choice for any new projects

This is a copy of the pidCrypt javascript crypto library with some modifications to make it compatible with node.js and browserify. Pidcrypt submodules are all accessible via require, and will automatically pull in any other submodule dependencies if needed.

Installation

npm install --save pidcrypt

Usage:

Encrypting text via AES (CBC)

AES CBC is a relatively easy to use symmetric encryption method that has the added convenience of being compatible with openssl (included on almost any *nix machine as well)

// Require seedrandom.js first to increase randomness for stronger encryption
require("pidcrypt/seedrandom")
  
var pidCrypt = require("pidcrypt")
require("pidcrypt/aes_cbc")

var aes = new pidCrypt.AES.CBC()

var pw =  "some password";
var encrypted = aes.encryptText("some text", pw); 

console.log("Encrypted text is: '%s'", encrypted);
// Encrypted text is: 'U2FsdGVkX19yGT01gBIBMJCEM7cBW6vc3ND06CyKu1w='

var decrypted = aes.decryptText(encrypted, pw);

console.log("Original text was: '%s'", decrypted);
// Original text was 'some text'

To perform the same encryption via openssl you'd use:

echo "some text" | openssl enc -aes-256-cbc -a -pass 'pass:some password'

Decyrpting text via AES (CBC)

// Require seedrandom.js first to increase randomness for stronger encryption
require("pidcrypt/seedrandom")
  
var pidCrypt = require("pidcrypt")
require("pidcrypt/aes_cbc")

var aes = new pidCrypt.AES.CBC()

var pw =  "some password";

var encryptedText = 'U2FsdGVkX19yGT01gBIBMJCEM7cBW6vc3ND06CyKu1w=';

var decrypted = aes.decryptText(encryptedText, pw);

console.log("Decrypted text is: '%s'", decrypted);
// Decrypted text is: 'some text'

To decrypt this via openssl you'd use:

echo U2FsdGVkX19yGT01gBIBMJCEM7cBW6vc3ND06CyKu1w= | openssl enc -aes-256-cbc -d -a -pass 'pass:some password'

Other encryption formats

You can load any of the modules included with pidcrypt in the same manner as the aes_cbc module. For convenience here are all the included encryption/decryption modules:

• aes_cbc
• aes_ctr
• asn1
• jsbn
• md5
• prng4
• rsa
• sha1
• sha256
• sha512

You can use any module in the same manner as above:

// load pidcrypt
var pidCrypt = require("pidcrypt");

// grab your module
require("pidcrypt/<your module>");

// do stuff as per the pidcrypt documentation for that module...

See documentation on the pidcrypt site for more details.