The document describes NORX, a parallel and scalable authenticated encryption scheme. Some key points: - NORX is a parallelizable authenticated encryption scheme that offers high security, efficiency, simplicity and scalability. It can process associated data, payload and trailer data in one pass. - It is based on a monkeyDuplex construction derived from the Keccak/SHA-3 sponge function. The permutation uses only simple bitwise operations, allowing for high performance in software and hardware. - In CAESAR competition second round, NORX is considered a standard submission for authenticated encryption. Analysis so far indicates it achieves good security margins. Software performance is competitive with other AE schemes.