On 27/04/2020 20:51, Thomas Dwyer III wrote: > The first signing example at > https://wiki.openssl.org/index.php/EVP_Signing_and_Verifying explicitly > calls both EVP_DigestInit_ex() and EVP_DigestSignInit(). Is the former > really necessary? It appears that the implementation of > EVP_DigestSignInit() in all versions of OpenSSL internally invokes > EVP_DigestInit_ex() so I'm confused by this example. Did I miss something? No - it's not necessary. In fact both of those HMAC examples looked a bit more complicated to me than they needed to be for the purposes of an example. So I've updated the page to try and simplify things a bit and removed the double init. Matt
