title: How to find MDK MAC (EMV)?
body: <p>I work on EMV since a while, I develop an application to pass specific emv apdu commands. It's already OK for some commands like select application, generate application cryptogram... The problem concern apdu who need Message Authentication Code, more precisely the master derivation key. My question is in three parts but, feel free to answer one that inspires you :</p>
  
  <p>Can I calculate, derivate or find the MDK by any way ? Which one ?
  Is that MDK MAC the same as MDK AC ? If yes, can I find MDK AC from an ARQC or TC ?
  Any other advice for MACing ?</p>
  
  <p>PS : I'm not a native English speaker, please be indulgent.</p>