The Skipjack protocol is powerful and more secure!  
SkipjackIC is not a public key solution such as PGP and RSA. With SJIC, each transaction carries its own key, enfolded within it. Which means that even if one transaction is compromised, that information cannot be used to compromise another transaction since each key is unique to each transaction. And it is nearly impossible to break even one transaction, even by brute force techniques.  

One measure of security is often taken by judging key space - the bigger the key space the better. To get a sense of the scale of the SkipjackIC standard, compare it to PGP or RSA that supports a key space of 2 to the 2048th power.  

By comparison, SJIC supports a minimum key space of 225 to the 2000th power. That is an almost unimaginable number, comparable perhaps to the number of atoms in the universe! This is part of what makes it so resistant to a brute force attack. It is more likely that you will get struck by lightening once a day for every day of your life than it is for a hacker to compromise our security.  

So right from the start, your credit card transactions are protected by the strongest encryption protocol in the industry.