Sha256: 3509ea529c4b4a81c89cd5037d7aebdad7320e618028f91dc11c811fc20a8cbc
Contents?: true
Size: 713 Bytes
Versions: 8
Compression:
Stored size: 713 Bytes
Contents
var aes = require('./aes')
var Transform = require('cipher-base')
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._update = function (chunk) {
return this._mode.encrypt(this, chunk, this._decrypt)
}
StreamCipher.prototype._final = function () {
this._cipher.scrub()
}
Version data entries
8 entries across 8 versions & 3 rubygems