/usr/lib/nodejs/browserify-aes/streamCipher.js is in node-browserify-aes 1.1.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | var aes = require('./aes')
var Buffer = require('safe-buffer').Buffer
var Transform = require('cipher-base')
var inherits = require('inherits')
function StreamCipher (mode, key, iv, decrypt) {
Transform.call(this)
this._cipher = new aes.AES(key)
this._prev = Buffer.from(iv)
this._cache = Buffer.allocUnsafe(0)
this._secCache = Buffer.allocUnsafe(0)
this._decrypt = decrypt
this._mode = mode
}
inherits(StreamCipher, Transform)
StreamCipher.prototype._update = function (chunk) {
return this._mode.encrypt(this, chunk, this._decrypt)
}
StreamCipher.prototype._final = function () {
this._cipher.scrub()
}
module.exports = StreamCipher
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