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/*
* Copyright 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SYSTEM_KEYMASTER_RSA_KEY_FACTORY_H_
#define SYSTEM_KEYMASTER_RSA_KEY_FACTORY_H_
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <keymaster/asymmetric_key_factory.h>
namespace keymaster {
class RsaKeyFactory : public AsymmetricKeyFactory {
public:
RsaKeyFactory(const KeymasterContext* context) : AsymmetricKeyFactory(context) {}
keymaster_error_t GenerateKey(const AuthorizationSet& key_description,
KeymasterKeyBlob* key_blob, AuthorizationSet* hw_enforced,
AuthorizationSet* sw_enforced) const override;
keymaster_error_t ImportKey(const AuthorizationSet& key_description,
keymaster_key_format_t input_key_material_format,
const KeymasterKeyBlob& input_key_material,
KeymasterKeyBlob* output_key_blob, AuthorizationSet* hw_enforced,
AuthorizationSet* sw_enforced) const override;
keymaster_error_t CreateEmptyKey(const AuthorizationSet& hw_enforced,
const AuthorizationSet& sw_enforced,
UniquePtr<AsymmetricKey>* key) const override;
OperationFactory* GetOperationFactory(keymaster_purpose_t purpose) const override;
keymaster_algorithm_t keymaster_key_type() const override { return KM_ALGORITHM_RSA; }
int evp_key_type() const override { return EVP_PKEY_RSA; }
protected:
keymaster_error_t UpdateImportKeyDescription(const AuthorizationSet& key_description,
keymaster_key_format_t import_key_format,
const KeymasterKeyBlob& import_key_material,
AuthorizationSet* updated_description,
uint64_t* public_exponent,
uint32_t* key_size) const;
};
} // namespace keymaster
#endif // SYSTEM_KEYMASTER_RSA_KEY_FACTORY_H_
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