81 lines
3.3 KiB
C++
81 lines
3.3 KiB
C++
/*
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* Copyright 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SYSTEM_KEYMASTER_RSA_KEYMASTER1_KEY_H_
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#define SYSTEM_KEYMASTER_RSA_KEYMASTER1_KEY_H_
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#include <openssl/rsa.h>
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#include <keymaster/rsa_key_factory.h>
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#include "keymaster1_engine.h"
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#include "rsa_key.h"
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namespace keymaster {
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class SoftKeymasterContext;
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/**
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* RsaKeymaster1KeyFactory is a KeyFactory that creates and loads keys which are actually backed by
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* a hardware keymaster1 module, but which does not support all keymaster1 digests. If unsupported
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* digests are found during generation or import, KM_DIGEST_NONE is added to the key description,
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* then the operations handle the unsupported digests in software.
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*
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* If unsupported digests are requested and KM_PAD_RSA_PSS or KM_PAD_RSA_OAEP is also requested, but
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* KM_PAD_NONE is not present KM_PAD_NONE will be added to the description, to allow for
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* software padding as well as software digesting.
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*/
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class RsaKeymaster1KeyFactory : public RsaKeyFactory {
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public:
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RsaKeymaster1KeyFactory(const SoftKeymasterContext* context, const Keymaster1Engine* engine);
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keymaster_error_t GenerateKey(const AuthorizationSet& key_description,
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KeymasterKeyBlob* key_blob, AuthorizationSet* hw_enforced,
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AuthorizationSet* sw_enforced) const override;
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keymaster_error_t ImportKey(const AuthorizationSet& key_description,
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keymaster_key_format_t input_key_material_format,
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const KeymasterKeyBlob& input_key_material,
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KeymasterKeyBlob* output_key_blob, AuthorizationSet* hw_enforced,
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AuthorizationSet* sw_enforced) const override;
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keymaster_error_t LoadKey(const KeymasterKeyBlob& key_material,
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const AuthorizationSet& additional_params,
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const AuthorizationSet& hw_enforced,
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const AuthorizationSet& sw_enforced,
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UniquePtr<Key>* key) const override;
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OperationFactory* GetOperationFactory(keymaster_purpose_t purpose) const override;
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private:
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const Keymaster1Engine* engine_;
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std::unique_ptr<OperationFactory> sign_factory_;
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std::unique_ptr<OperationFactory> decrypt_factory_;
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std::unique_ptr<OperationFactory> verify_factory_;
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std::unique_ptr<OperationFactory> encrypt_factory_;
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};
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class RsaKeymaster1Key : public RsaKey {
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public:
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RsaKeymaster1Key(RSA* rsa_key, const AuthorizationSet& hw_enforced,
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const AuthorizationSet& sw_enforced, keymaster_error_t* error)
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: RsaKey(rsa_key, hw_enforced, sw_enforced, error) {}
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};
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} // namespace keymaster
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#endif // SYSTEM_KEYMASTER_RSA_KEYMASTER1_KEY_H_
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