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Encrypt a string in C # and decrypt it in Delphi

I am writing a web application in ASP.Net that creates a license key for a Windows application written in Delphi. For simplicity, I am going to use the email address and date.

I want to encrypt it in C # and send this information to a person, and then when the Windows application starts up, the person enters the encrypted string.

Each time a Windows application starts, it checks this license, decrypts it and compares it with the current date.

How can I do this to provide C # encryption in Delphi?

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4 answers

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Use the same encryption / decryption algorithm in both delphi and C #.

You can find the code for the encryption algorithm for C # and then convert the code to the decryption algorithm in Delphi. Probably, if you choose the popular encryption, you can find encryption and decryption algorithms in different languages.

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