1 /* 2 * Copyright 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SYSTEM_KEYMASTER_RSA_KEY_H_ 18 #define SYSTEM_KEYMASTER_RSA_KEY_H_ 19 20 #include <openssl/rsa.h> 21 22 #include "asymmetric_key.h" 23 24 namespace keymaster { 25 26 class RsaKey : public AsymmetricKey { 27 public: 28 RsaKey(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced, 29 keymaster_error_t* error) 30 : AsymmetricKey(hw_enforced, sw_enforced, error) {} 31 32 bool InternalToEvp(EVP_PKEY* pkey) const override; 33 bool EvpToInternal(const EVP_PKEY* pkey) override; 34 35 bool SupportedMode(keymaster_purpose_t purpose, keymaster_padding_t padding); 36 bool SupportedMode(keymaster_purpose_t purpose, keymaster_digest_t digest); 37 38 struct RSA_Delete { 39 void operator()(RSA* p) { RSA_free(p); } 40 }; 41 42 RSA* key() const { return rsa_key_.get(); } 43 44 protected: 45 RsaKey(RSA* rsa, const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced, 46 keymaster_error_t* error) 47 : AsymmetricKey(hw_enforced, sw_enforced, error), rsa_key_(rsa) {} 48 49 private: 50 UniquePtr<RSA, RSA_Delete> rsa_key_; 51 }; 52 53 } // namespace keymaster 54 55 #endif // SYSTEM_KEYMASTER_RSA_KEY_H_ 56
