Vendor specific EAP methods may be registered with:
PLUGIN_CALLBACK(eap_method_register, <constructor>),
PLUGIN_PROVIDE(EAP_SERVER_VENDOR, <type>, <vendor>),
Same for client implementations via EAP_PEER_VENDOR.
References #969.
We previously didn't pass the key size during algorithm registration, but this
resulted in benchmarking with the "default" key size the crypter uses when
passing 0 as key size.
Clang does not initialize padding in union members so hashing the
complete "arg" union could lead to different hashes if the hashed
plugin_feature_t does not have static storage duration.
Fixes#549.
Nonce generators (nonce_gen_t) can be used to get or allocate nonces.
Users can request nonce generators from the crypto factory while nonce
plugins register/remove themselves to/from the crypto factory.
Tobias Brunner