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146 lines
6.0 KiB
146 lines
6.0 KiB
/*
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* Copyright 2019, 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 ANDROID_HARDWARE_IDENTITY_IDENTITYCREDENTIAL_H
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#define ANDROID_HARDWARE_IDENTITY_IDENTITYCREDENTIAL_H
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#include <aidl/android/hardware/identity/BnIdentityCredential.h>
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#include <aidl/android/hardware/keymaster/HardwareAuthToken.h>
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#include <aidl/android/hardware/keymaster/VerificationToken.h>
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#include <android/hardware/identity/support/IdentityCredentialSupport.h>
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#include <map>
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#include <set>
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#include <string>
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#include <vector>
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#include <cppbor.h>
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#include "IdentityCredentialStore.h"
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#include "SecureHardwareProxy.h"
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namespace aidl::android::hardware::identity {
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using ::aidl::android::hardware::keymaster::HardwareAuthToken;
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using ::aidl::android::hardware::keymaster::VerificationToken;
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using ::android::sp;
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using ::android::hardware::identity::SecureHardwarePresentationProxy;
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using ::std::map;
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using ::std::set;
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using ::std::string;
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using ::std::vector;
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class IdentityCredential : public BnIdentityCredential {
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public:
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IdentityCredential(sp<SecureHardwareProxyFactory> hwProxyFactory,
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sp<SecureHardwarePresentationProxy> hwProxy,
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const vector<uint8_t>& credentialData)
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: hwProxyFactory_(hwProxyFactory),
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hwProxy_(hwProxy),
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credentialData_(credentialData),
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numStartRetrievalCalls_(0),
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expectedDeviceNameSpacesSize_(0) {}
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// Parses and decrypts credentialData_, return a status code from
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// IIdentityCredentialStore. Must be called right after construction.
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int initialize();
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// Methods from IIdentityCredential follow.
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ndk::ScopedAStatus deleteCredential(vector<uint8_t>* outProofOfDeletionSignature) override;
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ndk::ScopedAStatus deleteCredentialWithChallenge(
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const vector<uint8_t>& challenge,
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vector<uint8_t>* outProofOfDeletionSignature) override;
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ndk::ScopedAStatus proveOwnership(const vector<uint8_t>& challenge,
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vector<uint8_t>* outProofOfOwnershipSignature) override;
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ndk::ScopedAStatus createEphemeralKeyPair(vector<uint8_t>* outKeyPair) override;
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ndk::ScopedAStatus setReaderEphemeralPublicKey(const vector<uint8_t>& publicKey) override;
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ndk::ScopedAStatus createAuthChallenge(int64_t* outChallenge) override;
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ndk::ScopedAStatus setRequestedNamespaces(
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const vector<RequestNamespace>& requestNamespaces) override;
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ndk::ScopedAStatus setVerificationToken(const VerificationToken& verificationToken) override;
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ndk::ScopedAStatus startRetrieval(
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const vector<SecureAccessControlProfile>& accessControlProfiles,
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const HardwareAuthToken& authToken, const vector<uint8_t>& itemsRequest,
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const vector<uint8_t>& signingKeyBlob, const vector<uint8_t>& sessionTranscript,
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const vector<uint8_t>& readerSignature, const vector<int32_t>& requestCounts) override;
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ndk::ScopedAStatus startRetrieveEntryValue(
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const string& nameSpace, const string& name, int32_t entrySize,
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const vector<int32_t>& accessControlProfileIds) override;
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ndk::ScopedAStatus retrieveEntryValue(const vector<uint8_t>& encryptedContent,
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vector<uint8_t>* outContent) override;
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ndk::ScopedAStatus finishRetrieval(vector<uint8_t>* outMac,
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vector<uint8_t>* outDeviceNameSpaces) override;
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ndk::ScopedAStatus generateSigningKeyPair(vector<uint8_t>* outSigningKeyBlob,
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Certificate* outSigningKeyCertificate) override;
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ndk::ScopedAStatus updateCredential(
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shared_ptr<IWritableIdentityCredential>* outWritableCredential) override;
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private:
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ndk::ScopedAStatus deleteCredentialCommon(const vector<uint8_t>& challenge,
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bool includeChallenge,
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vector<uint8_t>* outProofOfDeletionSignature);
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// Set by constructor
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sp<SecureHardwareProxyFactory> hwProxyFactory_;
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sp<SecureHardwarePresentationProxy> hwProxy_;
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vector<uint8_t> credentialData_;
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int numStartRetrievalCalls_;
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// Set by initialize()
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string docType_;
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bool testCredential_;
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vector<uint8_t> encryptedCredentialKeys_;
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// Set by createEphemeralKeyPair()
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vector<uint8_t> ephemeralPublicKey_;
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// Set by setReaderEphemeralPublicKey()
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vector<uint8_t> readerPublicKey_;
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// Set by setRequestedNamespaces()
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vector<RequestNamespace> requestNamespaces_;
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// Set by setVerificationToken().
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VerificationToken verificationToken_;
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// Set at startRetrieval() time.
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vector<uint8_t> signingKeyBlob_;
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vector<uint8_t> sessionTranscript_;
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vector<uint8_t> itemsRequest_;
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vector<int32_t> requestCountsRemaining_;
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map<string, set<string>> requestedNameSpacesAndNames_;
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cppbor::Map deviceNameSpacesMap_;
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cppbor::Map currentNameSpaceDeviceNameSpacesMap_;
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// Calculated at startRetrieval() time.
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size_t expectedDeviceNameSpacesSize_;
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vector<unsigned int> expectedNumEntriesPerNamespace_;
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// Set at startRetrieveEntryValue() time.
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string currentNameSpace_;
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string currentName_;
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vector<int32_t> currentAccessControlProfileIds_;
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size_t entryRemainingBytes_;
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vector<uint8_t> entryValue_;
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void calcDeviceNameSpacesSize(uint32_t accessControlProfileMask);
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};
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} // namespace aidl::android::hardware::identity
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#endif // ANDROID_HARDWARE_IDENTITY_IDENTITYCREDENTIAL_H
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