418     KeymasterKeyBlob master_key;  in CreateAuthEncryptedKeyBlob()  local
424     error = DeriveMasterKey(&master_key, info);  in CreateAuthEncryptedKeyBlob()
434                 master_key, *this /* random */);  in CreateAuthEncryptedKeyBlob()
438                 sw_enforced, hidden, SecureDeletionData{}, master_key,  in CreateAuthEncryptedKeyBlob()
692     KeymasterKeyBlob master_key;  in ParseKeyBlob()  local
693     error = DeriveMasterKey(&master_key, deserialized_key->encrypted_key);  in ParseKeyBlob()
717             DecryptKey(*deserialized_key, hidden, sdd, master_key);  in ParseKeyBlob()
802         KeymasterKeyBlob* master_key,  in DeriveMasterKey()  argument
813     if (!master_key->Reset(kAesKeySize)) {  in DeriveMasterKey()
822                           master_key->writable_data(), kAesKeySize);  in DeriveMasterKey()
836                 .key = master_key->writable_data(),  in DeriveMasterKey()