PKCS (Public-Key Cryptography Standards) Last modified: 2022-12-01 PKCS are a group of public-key cryptography standards. Decrypt PKCS#12 First of all, you need to format the PKCS file to make the John to recognize it. pfx2john example.pfx > hash.txt Copied! Crack the password using the formatted text. john --wordlist=wordlist.txt hash.txt Copied!