VMAC and UMAC are highly efficient MACs. VMAC-AE and UMAC-AE use those MACs in conjunction with AES in counter mode to provide authenticated encryption. The sepcifications of UMAC-AE and VMAC-AE allow for a single key to be used for both authentication and encryption, thus saving memory and key-managment with respect to traditional methods. Specification status: In dvelopment. To be submitted to IETF as Internet-Draft. Code status: Written, lightly tested. To be improved for speed and validation. Technical paper status: In development.