Hi, I have encrypted a free text in C++ using a EVP calls with CFB mode and 32 bytes of IV (Hex String). Then i am passing this cipher text to my another end which is using a python(PyCrypto library) code to decrypt a cipher text using same Key and IV. But i am getting error "IV must be of 16 bytes" in python. I tried to convert 32 bytes of Hex string to 16 bytes ascii string but nothing works. Please help me to resolve this. -- View this message in context: http://openssl.6102.n7.nabble.com/Problem-in-decryption-using-python-which-cipher-text-is-encrypted-in-c-tp63826.html Sent from the OpenSSL - User mailing list archive at Nabble.com.