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I read Dan Rollins excellent article &quot;Easy String Encryption Using CryptoAPI in C++&quot;:<br />
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<a href="https://www.experts-exchange.com/articles/1193/Easy-String-Encryption-Using-CryptoAPI-in-C.html" rel="ugc">https://www.experts-exchange.com/articles/1193/Easy-String-Encryption-Using-CryptoAPI-in-C.html</a><br />
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I got the class to compile and run no problem. But in my application it encrypts the string, but will not decrypt. The CryptoAPI &nbsp;function CryptDecrypt fails with error NTE_BAD_LEN. I tried increasing the output buffer size to a much larger value, but then it simply returns an incorrect decryption of the input string. I have even tried just passing simple char and LPCSTR values to it, and it is no-go. <br />
<br />
I am thinking this might be an issue with unicode, but I admit that I am a bit lost. Any help would be appreciated.
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I read Dan Rollins excellent article "Easy String Encryption Using CryptoAPI in C++":

http://www.experts-exchange.com/articles/1193/Easy-String-Encryption-Using-CryptoAPI-in-C.html

I got the class to compile and run no problem. But in my application it encrypts the string, but will not decrypt. The CryptoAPI  function CryptDecrypt fails with error NTE_BAD_LEN. I tried increasing the output buffer size to a much larger value, but then it simply returns an incorrect decryption of the input string. I have even tried just passing simple char and LPCSTR values to it, and it is no-go. 

I am thinking this might be an issue with unicode, but I admit that I am a bit lost. Any help would be appreciated.

Using CryptoAPI in C++ in an MFC unicode application

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Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.

Encryption

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