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looking for a way to calculate Mac using the ISO 9797-1 Algorithm 3(Retail MAC)

Looking through Java Cryptography Architecture and code examples, I have learned how to calculate the Mac using Mac class: 

Mac mac = Mac.getInstance("HmacMD5");
mac.init(<secretKeyHere>);
byte[] macHash = mac.doFinal(<encryptedTextHere>);

But I am actually looking for a way to calculate Mac using the ISO 9797-1 Algorithm 3(Retail MAC).

Can someone suggest me a code example in Java?

Solution

  • It is not available in any of the Oracle providers, however if you add the Bouncycastle provider then that mac algorithm will be available, e.g. 

    Security.addProvider(new BouncyCastleProvider()); 
Mac mac = Mac.getInstance("ISO9797ALG3MAC");

    Note: that Mac algorithm has been obsolete for decades.