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Add EncFile module, for encrypted wallet files

This commit is contained in:
Jeff Garzik 2013-08-01 14:28:26 -04:00
parent 415ba958c6
commit 90c5e84291
1 changed files with 38 additions and 0 deletions
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util/EncFile.js Normal file
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var fs = require('fs');
var crypto = require('crypto');
var zlib = require('zlib');
exports.readFileSync = function(enc_method, enc_passphrase, filename)
{
var crypted = fs.readFileSync(filename, 'binary');
var decipher = crypto.createDecipher(enc_method, enc_passphrase);
var dec = decipher.update(crypted, 'binary', 'binary');
dec += decipher.final('binary');
return dec;
};
exports.readJFileSync = function(enc_method, enc_passphrase, filename)
{
var raw = this.readFileSync(enc_method, enc_passphrase, filename);
return JSON.parse(raw);
};
exports.writeFileSync = function(enc_method, enc_passphrase, filename, data)
{
var cipher = crypto.createCipher(enc_method, enc_passphrase);
var crypted = cipher.update(data, 'binary', 'binary');
crypted += cipher.final('binary');
fs.writeFileSync(filename, crypted, 'binary');
return true;
};
exports.writeJFileSync = function(enc_method, enc_passphrase, filename, obj)
{
var raw = JSON.stringify(obj);
return this.writeFileSync(enc_method, enc_passphrase, filename, raw);
};