Response to Ward Beullens' new Rainbow attacks

[Bo-Yin Yang]

Dear all,

We would like to point you to our response to Ward Beullens' paper on his new attacks against Rainbow at http://precision.moscito.org/by-publ/recent/response-ward.pdf

We acknowledge that this attack is fundamentally correct and valid, but would like to present our updated security model and analysis wherein we conclude that Rainbow instances as submitted to Round 3 still meets the NIST level 1,3,5 security requirements, without detracting from Ward's work,

Merry Xmas everyone
The Rainbow Team