Sha256: 006764d8bd81175ecc49bcecfb8330918fe153422c38c5514c3803775c1154c2
Contents?: true
Size: 761 Bytes
Versions: 62
Compression:
Stored size: 761 Bytes
Contents
var aes = require('./aes');
var Transform = require('./cipherBase');
var inherits = require('inherits');
inherits(StreamCipher, Transform);
module.exports = StreamCipher;
function StreamCipher(mode, key, iv, decrypt) {
if (!(this instanceof StreamCipher)) {
return new StreamCipher(mode, key, iv);
}
Transform.call(this);
this._cipher = new aes.AES(key);
this._prev = new Buffer(iv.length);
this._cache = new Buffer('');
this._secCache = new Buffer('');
this._decrypt = decrypt;
iv.copy(this._prev);
this._mode = mode;
}
StreamCipher.prototype._transform = function (chunk, _, next) {
next(null, this._mode.encrypt(this, chunk, this._decrypt));
};
StreamCipher.prototype._flush = function (next) {
this._cipher.scrub();
next();
};
Version data entries
62 entries across 62 versions & 1 rubygems