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 https://github.com/mjosaarinen/brutus/tree/master/crypto_aead/stribob192r2 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.