How do you encrypt parts of a file separately using pgp?

Posted by Collin Anderson on Stack Overflow See other posts from Stack Overflow or by Collin Anderson
Published on 2010-03-23T16:59:27Z Indexed on 2010/03/23 17:03 UTC
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pgp

I would like to encrypt credit card numbers on a web server as they come in using PGP. I would then like to be able to export all of the credit card numbers and other information in one file that can be easily decrypted using standard PGP software.

Is it possible to take the encrypted credit card numbers and join them with other encrypted data and be able to decrypt the entire file?

Basically is this true? D(E(x) + E(y)) = x + y

Where '+' means string concatenation.

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How do you encrypt parts of a file separately using pgp? - Developer IT

How do you encrypt parts of a file separately using pgp?

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