On 14/02/2019 16:42, Patrice Guérin wrote: > Hello, > > I have two questions : > > * I use OBJ_NAME_do_all_sorted() with OBJ_NAME_TYPE_CIPHER_METH to get the > list of supported cipher methods > Is there a difference between lowercase and uppercase names ? > I've noticed that some do not have uppercase name (ex. aes-128-ccm) > Is there a prefered name to use ?
Objects have a "short name" and a "long name". In many cases the two are identical. In others they have minor differences such as uppercase vs lowercase. It doesn't matter - both forms refer to the same object. You can use either. > * In the case of GCM usage (with examples found in the OpenSSL wiki), > Is the specific control action to set the tag on decryption can be done at > the beginning rather than juste before EVP_DecryptFinal_ex() ? Yes, as long as it's done after EVP_DecryptInit_ex(). Matt -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
