php+vb6 encryption

[pelegk1]

what ready made strong function that i can use that will encrypt on a vb6 application and decrypted in php?
i need this beacuse i have credit cards that i want to hold on a pc that isnt connected to the net and where the credit card number will be helt encryoted, so even when i transfer it to the server it will be encrypted data.
and on the server i want to decrypt it using a decryption software!
any idea?
thnaks in advance
peleg

[NeoCambell]

After several attempts I found the answer to this problem. We all know that VB6 doesn't have the crypto libs available for .Net. I found a nice set of functions written in both php and VB6 to cross encrypt/decrypt very easily. Have a look at Encryption for C++, Visual Basic, php using PC1 (http://www.expertcore.org/viewtopic.php?f=49&t=1816)

[pelegk1]

but still great you have answered:)