mbedtls_svc_key_id_t
Encoding of key identifiers as seen inside the PSA Crypto implementation. When PSA Crypto is built as a library inside an application, this type is identical to #psa_key_id_t. When PSA Crypto is built as a service that can store keys on behalf of multiple clients, this type encodes the #psa_key_id_t value seen by each client application as well as extra information that identifies the client that owns the key.