They are researched methods and models of the shaping the codes to authentifications of the messages (the MAC - Message Authentication Code), including with use universal hash function (UMAC - Message Authentication Code using Universal Hashing). By means of scaling the applicable transformations is developed reduced model UMAC (mini-umac) for study conflict characteristic of the formed codes to authentifications of the messages.
COLOR-codes, universal hash-functions, model UMAC, conflict characteristic/
"Model formyrovanyia kodov autentyfykatsyy soobshchenyi s yspolzovanyem unyversalnыkh kheshyruiushchykh funktsyi" ,
Information Processing Systems,