SipHash is a family of pseudorandom functions (a.k.a. keyed hash functions) optimized for speed on short messagesSipHash is secure, fast, and simple (for real):SipHash is simpler and faster than previous cryptographic algorithms (e.g. MACs based on universal hashing)SipHash is competitive in performance with insecure non-cryptographic algorithms (e.g. MurmurHash)
could be used with optiboot
Hmm. "Could be used with a bootloader", I guess. Adding 800+ bytes of crypto code to a 500 byte bootloader would sort of do away with the "opti" designation.
1200 bytes in its current form (the 800 came from an eariler AVR studio code set)