Ron Hawkins wrote:

>One area where PE encryption, as implemented on z is where it is used

>together with compression. 

 

>The horse must go in front of the cart, meaning compression must happen

>before encryption, because it will be ineffective if you do it after. 

 

Not true with format-preserving data protection. Since the protected data has 
the same format as the original, it should compress just as well. With other 
forms of encryption, sure.

 

And yes, this is a well-integrated feature of PE encryption!


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