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/*
* Copyright 2019, 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 ANDROID_HARDWARE_IDENTITY_WRITABLEIDENTITYCREDENTIAL_H
#define ANDROID_HARDWARE_IDENTITY_WRITABLEIDENTITYCREDENTIAL_H
#include <aidl/android/hardware/identity/BnWritableIdentityCredential.h>
#include <android/hardware/identity/support/IdentityCredentialSupport.h>
#include <cppbor.h>
#include <set>
#include "IdentityCredentialStore.h"
#include "SecureHardwareProxy.h"
namespace aidl::android::hardware::identity {
using ::android::sp;
using ::android::hardware::identity::SecureHardwareProvisioningProxy;
using ::std::set;
using ::std::string;
using ::std::vector;
class WritableIdentityCredential : public BnWritableIdentityCredential {
public:
// For a new credential, call initialize() right after construction.
//
// For an updated credential, call initializeForUpdate() right after construction.
//
WritableIdentityCredential(sp<SecureHardwareProvisioningProxy> hwProxy, const string& docType,
bool testCredential)
: hwProxy_(hwProxy), docType_(docType), testCredential_(testCredential) {}
~WritableIdentityCredential();
// Creates the Credential Key. Returns false on failure.
bool initialize();
// Used when updating a credential. Returns false on failure.
bool initializeForUpdate(const vector<uint8_t>& encryptedCredentialKeys);
// Methods from IWritableIdentityCredential follow.
ndk::ScopedAStatus getAttestationCertificate(const vector<uint8_t>& attestationApplicationId,
const vector<uint8_t>& attestationChallenge,
vector<Certificate>* outCertificateChain) override;
ndk::ScopedAStatus setExpectedProofOfProvisioningSize(
int32_t expectedProofOfProvisioningSize) override;
ndk::ScopedAStatus startPersonalization(int32_t accessControlProfileCount,
const vector<int32_t>& entryCounts) override;
ndk::ScopedAStatus addAccessControlProfile(
int32_t id, const Certificate& readerCertificate, bool userAuthenticationRequired,
int64_t timeoutMillis, int64_t secureUserId,
SecureAccessControlProfile* outSecureAccessControlProfile) override;
ndk::ScopedAStatus beginAddEntry(const vector<int32_t>& accessControlProfileIds,
const string& nameSpace, const string& name,
int32_t entrySize) override;
ndk::ScopedAStatus addEntryValue(const vector<uint8_t>& content,
vector<uint8_t>* outEncryptedContent) override;
ndk::ScopedAStatus finishAddingEntries(
vector<uint8_t>* outCredentialData,
vector<uint8_t>* outProofOfProvisioningSignature) override;
private:
// Set by constructor.
sp<SecureHardwareProvisioningProxy> hwProxy_;
string docType_;
bool testCredential_;
// This is set in initialize().
bool startPersonalizationCalled_;
bool firstEntry_;
// This is set in getAttestationCertificate().
bool getAttestationCertificateAlreadyCalled_ = false;
// These fields are initialized during startPersonalization()
size_t numAccessControlProfileRemaining_;
vector<int32_t> remainingEntryCounts_;
cppbor::Array signedDataAccessControlProfiles_;
cppbor::Map signedDataNamespaces_;
cppbor::Array signedDataCurrentNamespace_;
size_t expectedProofOfProvisioningSize_;
// This field is initialized in addAccessControlProfile
set<int32_t> accessControlProfileIds_;
// These fields are initialized during beginAddEntry()
size_t entryRemainingBytes_;
string entryNameSpace_;
string entryName_;
vector<int32_t> entryAccessControlProfileIds_;
vector<uint8_t> entryBytes_;
set<string> allNameSpaces_;
};
} // namespace aidl::android::hardware::identity
#endif // ANDROID_HARDWARE_IDENTITY_WRITABLEIDENTITYCREDENTIAL_H
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