Hi, One question regarding EVP_Encrypt APIs.
EVP_EncryptInit_ex(&ctx, cipher, NULL, (unsigned char *)enc_key, (unsigned char *)iv)) Is there a way to pass the iv as NULL during the call to the above API, and then update this later on. I want to do this because of the following reason, I want to initialize the context to use the same key for all calls to encrypt but want to use a different IV value. If I use this API as it is, then for achieving that, I need to call Init_ex each time. I want something like this-> Step-1 EVP_EncryptInit_ex(&ctx, cipher, NULL, (unsigned char *)enc_key->v, NULL) Step-2 EncryptData-> //Can call this many times <Set the IV value> EVP_EncryptUpdate(); EVP_EncrpyFinal(); One solution is to use the same IV for all calls to Encrypt, but I guess this defeats the purpose of random IV. Similarly case for for decrypt also. Thanks, Prashant. -- Prashant Batra Follow the dreams!!
