Hey Gungor, I'd suggest implementing the abstract MessageAuthenticationCode class yourself.
You can use HMAC for orientation on how to do this. As for the counter there's "IncrementCounterByOne" function in CryptoPP or you could just use a 64-bit integer or a CryptoPP Integer. HMAC by itself can't do this and you can't make it do this without implementing the MAC class yourself. If you encounter further problems while doing the implementation you're welcome to ask here again :) BR JPM Am 14.09.2015 um 19:05 schrieb Gungor Basa: > Hello guys, > > I need a function like "mac = HMAC(key || counter)”. What is the best > way to use counter with hashed key function? I tried to use > “SetKeyWithIV” and “SetKeyWithRounds” but I > got AlgorithmParametersBase: parameter “IV" not used > or AlgorithmParametersBase: parameter "Rounds" not used exceptions. > > Thanks > Gungor > -- > -- > You received this message because you are subscribed to the "Crypto++ > Users" Google Group. > To unsubscribe, send an email to > [email protected]. > More information about Crypto++ and this group is available at > http://www.cryptopp.com. > --- > You received this message because you are subscribed to the Google > Groups "Crypto++ Users" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to [email protected]. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
