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I would like to encrypt a string with keyA then encrypt the result with keyB then decrypt that result with keyA and finally retrieve original string with keyB.

I am using VB6 and/or VB.net

TylerH
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user3680735
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1 Answers1

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Use CTR mode encryption such as the one used in Bouncy Castle for .NET. CTR uses XOR as last step, and XOR is commutative.

Community
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Maarten Bodewes
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  • Note that I won't go into the details why you want to do such a thing, double encryption is not very useful most of the time (at least not for data, you could however encrypt a data key multiple times). – Maarten Bodewes May 27 '14 at 21:16