STRIBOB is an algorithm for Authenticated Encryption with Associated data (AEAD), and is a second round CAESAR Competition proposal. The algorithm was designed by Markku-Juhani O. Saarinen and Billy Brumley.

Here's the doc: The STRIBOBr2 Authenticated Encryption Algorithm:

This a permalink that always points to the latest version of the STRIBOB CAESAR document.

Software implementations are available under at the BRUTUS GitHub repository. The source code should be drop-in compatible with SUPERCOP. The official (SUPERCOP) source code still hasn't been updated to match with Round 2 specifications to our knowledge.