- 1 year ago
C++ Windows CryptDecrypt always return successful
If the CryptDecrypt
function in C++ Windows always returns success, it is possible that the decryption is actually failing but the function is returning the success code. Here are some things you can try to troubleshoot the issue:
Check the return value of the
CryptDecrypt
function. If it returnsTRUE
but the output buffer is empty, this could indicate a problem with the decryption.Check the last error code using the
GetLastError
function. If theCryptDecrypt
function fails, it should set the last error code to a non-zero value. You can use this error code to determine the cause of the failure.Make sure you are passing in the correct parameters to the
CryptDecrypt
function. Double check that the encryption and decryption algorithms match and that the key is the same.Try encrypting and decrypting a simple string or file to see if the problem is with the specific data you are trying to decrypt.
If none of the above steps work, try using a different encryption library or method to see if that resolves the issue.
By following these steps, you should be able to troubleshoot why CryptDecrypt
always returns success in your C++ Windows application.