While this message may be more helpful, it will break some cases, such as when there are multiple ciphers that could be used and we can just skip CAST5 and move on. Return NULL when CAST5 unsupported, just like for other unsupported ciphers.
While this message may be more helpful, it will break some cases, such as when there are multiple ciphers that could be used and we can just skip CAST5 and move on. Return NULL when CAST5 unsupported, just like for other unsupported ciphers.