file-encryptor
v0.1.1
Published
Encrypts files using Node's built-in Cipher class.
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file-encryptor
Encrypts files using Node's built-in Cipher class. Encryption is stream-based for low memory footprint.
Getting Started
Install the module:
npm install file-encryptor
Use it in your script:
var encryptor = require('file-encryptor');
var key = 'My Super Secret Key';
// Encrypt file.
encryptor.encryptFile('input_file.txt', 'encrypted.dat', key, function(err) {
// Encryption complete.
});
...
// Decrypt file.
encryptor.decryptFile('encrypted.dat', 'output_file.txt', key, function(err) {
// Decryption complete.
});
The input file will be streamed through the Cipher and to the output file. If the output files does not exists, it will be created. If the output file already exists, it will be truncated.
Change Cipher Algorithm
By default the "aes192" cipher algorithm is used. This can be changed by passing a new algorithm string as an option.
Available algorithms can be found by executing:
openssl list-cipher-algorithms
Setting algorithm option:
var key = 'My Super Secret Key';
var options = { algorithm: 'aes256' };
encryptor.encryptFile('input_file.txt', 'encrypted.dat', key, options, function(err) {
// Decryption complete;
});
...
encryptor.decryptFile('encrypted.dat', 'outputfile.txt', key, options, function(err) {
// Encryption complete;
});
License
Copyright (c) 2013 Modulus Licensed under the MIT license.