blob: c967a959fa7721f883f5952c10593ff1b4f547c0 (
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function encryptByte (self, byteParam, decrypt) {
var pad = self._cipher.encryptBlock(self._prev)
var out = pad[0] ^ byteParam
self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])])
return out
}
exports.encrypt = function (self, chunk, decrypt) {
var len = chunk.length
var out = new Buffer(len)
var i = -1
while (++i < len) {
out[i] = encryptByte(self, chunk[i], decrypt)
}
return out
}
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