http://www.rfc-editor.org/rfc/rfc7253.txt
RFC 7253: The OCB Authenticated-Encryption Algorithm, T. Krovetz, P. Rogaway2014-05-01T23:00:00-00:00This document specifies OCB, a shared-key blockcipher-based encryption scheme that provides confidentiality and authenticity for plaintexts and authenticity for associated data. This document is a product of the Crypto Forum Research Group (CFRG).