Updates on ACE

ACE is a permutation based authenticated encryption (AE) and hash algorithm which provides 128-bit security for AE and hash with a single hardware circuit. In this note, we report updates on ACE since its selection as a round 2 candidate of the NIST lightweight cryptography standardization competition [3]. This report includes: new third party cryptanalysis and implementation results, applications of ACE in IEEE 802.11X and CoAP handshake protocols for Internet of Things, and comparisons with current NIST standards. We do not plan any future tweaks for ACE.