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Commit a1285deb authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "identity: Make NoS libeic and AOSP libeic align" am: c9cb222b am:... 

Merge "identity: Make NoS libeic and AOSP libeic align" am: c9cb222b am: 0ccb375b am: aee0ad69

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1816779

Change-Id: Ia535171c753ec98e004ece3b565b34404199e0ed
parents 53423cbe aee0ad69

identity/aidl/default/FakeSecureHardwareProxy.cpp

+57 −25
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ bool FakeSecureHardwareProvisioningProxy::initialize(bool testCredential) { 
bool FakeSecureHardwareProvisioningProxy::initializeForUpdate(

        bool testCredential, string docType, vector<uint8_t> encryptedCredentialKeys) {

    return eicProvisioningInitForUpdate(&ctx_, testCredential, docType.c_str(),

                                        docType.size(),

                                        encryptedCredentialKeys.data(),

                                        encryptedCredentialKeys.size());

}
@@ -92,8 +93,11 @@ optional<vector<uint8_t>> FakeSecureHardwareProvisioningProxy::createCredentialK 
bool FakeSecureHardwareProvisioningProxy::startPersonalization(

        int accessControlProfileCount, vector<int> entryCounts, const string& docType,

        size_t expectedProofOfProvisioningSize) {

    if (!eicProvisioningStartPersonalization(&ctx_, accessControlProfileCount, entryCounts.data(),

                                             entryCounts.size(), docType.c_str(),



    if (!eicProvisioningStartPersonalization(&ctx_, accessControlProfileCount,

                                             entryCounts.data(),

                                             entryCounts.size(),

                                             docType.c_str(), docType.size(),

                                             expectedProofOfProvisioningSize)) {

        return false;

    }
@@ -105,9 +109,11 @@ optional<vector<uint8_t>> FakeSecureHardwareProvisioningProxy::addAccessControlP 
        int id, const vector<uint8_t>& readerCertificate, bool userAuthenticationRequired,

        uint64_t timeoutMillis, uint64_t secureUserId) {

    vector<uint8_t> mac(28);

    uint8_t scratchSpace[512];

    if (!eicProvisioningAddAccessControlProfile(

                &ctx_, id, readerCertificate.data(), readerCertificate.size(),

                userAuthenticationRequired, timeoutMillis, secureUserId, mac.data())) {

                userAuthenticationRequired, timeoutMillis, secureUserId, mac.data(),

                scratchSpace, sizeof(scratchSpace))) {

        return {};

    }

    return mac;
@@ -117,9 +123,15 @@ bool FakeSecureHardwareProvisioningProxy::beginAddEntry(const vector<int>& acces 
                                                        const string& nameSpace, const string& name,

                                                        uint64_t entrySize) {

    uint8_t scratchSpace[512];

    return eicProvisioningBeginAddEntry(&ctx_, accessControlProfileIds.data(),

                                        accessControlProfileIds.size(), nameSpace.c_str(),

                                        name.c_str(), entrySize, scratchSpace, sizeof scratchSpace);

    vector<uint8_t> uint8AccessControlProfileIds;

    for (size_t i = 0; i < accessControlProfileIds.size(); i++) {

        uint8AccessControlProfileIds.push_back(accessControlProfileIds[i] & 0xFF);

    }



    return eicProvisioningBeginAddEntry(&ctx_, uint8AccessControlProfileIds.data(),

                                        uint8AccessControlProfileIds.size(), nameSpace.c_str(),

                                        nameSpace.size(), name.c_str(), name.size(), entrySize,

                                        scratchSpace, sizeof(scratchSpace));

}



// Returns encryptedContent.
@@ -128,11 +140,16 @@ optional<vector<uint8_t>> FakeSecureHardwareProvisioningProxy::addEntryValue( 
        const vector<uint8_t>& content) {

    vector<uint8_t> eicEncryptedContent;

    uint8_t scratchSpace[512];

    vector<uint8_t> uint8AccessControlProfileIds;

    for (size_t i = 0; i < accessControlProfileIds.size(); i++) {

        uint8AccessControlProfileIds.push_back(accessControlProfileIds[i] & 0xFF);

    }



    eicEncryptedContent.resize(content.size() + 28);

    if (!eicProvisioningAddEntryValue(

                &ctx_, accessControlProfileIds.data(), accessControlProfileIds.size(),

                nameSpace.c_str(), name.c_str(), content.data(), content.size(),

                eicEncryptedContent.data(), scratchSpace, sizeof scratchSpace)) {

                &ctx_, uint8AccessControlProfileIds.data(), uint8AccessControlProfileIds.size(),

                nameSpace.c_str(), nameSpace.size(), name.c_str(), name.size(), content.data(),

                content.size(), eicEncryptedContent.data(), scratchSpace, sizeof(scratchSpace))) {

        return {};

    }

    return eicEncryptedContent;
@@ -152,7 +169,7 @@ optional<vector<uint8_t>> FakeSecureHardwareProvisioningProxy::finishGetCredenti 
        const string& docType) {

    vector<uint8_t> encryptedCredentialKeys(116);

    size_t size = encryptedCredentialKeys.size();

    if (!eicProvisioningFinishGetCredentialData(&ctx_, docType.c_str(),

    if (!eicProvisioningFinishGetCredentialData(&ctx_, docType.c_str(), docType.size(),

                                                encryptedCredentialKeys.data(), &size)) {

        return {};

    }
@@ -170,7 +187,7 @@ bool FakeSecureHardwarePresentationProxy::initialize(bool testCredential, string 
                                                     vector<uint8_t> encryptedCredentialKeys) {

    LOG(INFO) << "FakeSecureHardwarePresentationProxy created, sizeof(EicPresentation): "

              << sizeof(EicPresentation);

    return eicPresentationInit(&ctx_, testCredential, docType.c_str(),

    return eicPresentationInit(&ctx_, testCredential, docType.c_str(), docType.size(),

                               encryptedCredentialKeys.data(), encryptedCredentialKeys.size());

}
@@ -181,8 +198,9 @@ FakeSecureHardwarePresentationProxy::generateSigningKeyPair(string docType, time 
    size_t publicKeyCertSize = sizeof(publicKeyCert);

    vector<uint8_t> signingKeyBlob(60);



    if (!eicPresentationGenerateSigningKeyPair(&ctx_, docType.c_str(), now, publicKeyCert,

                                               &publicKeyCertSize, signingKeyBlob.data())) {

    if (!eicPresentationGenerateSigningKeyPair(&ctx_, docType.c_str(), docType.size(), now,

                                               publicKeyCert, &publicKeyCertSize,

                                               signingKeyBlob.data())) {

        return {};

    }
@@ -244,10 +262,12 @@ optional<bool> FakeSecureHardwarePresentationProxy::validateAccessControlProfile 
        int id, const vector<uint8_t>& readerCertificate, bool userAuthenticationRequired,

        int timeoutMillis, uint64_t secureUserId, const vector<uint8_t>& mac) {

    bool accessGranted = false;

    uint8_t scratchSpace[512];

    if (!eicPresentationValidateAccessControlProfile(&ctx_, id, readerCertificate.data(),

                                                     readerCertificate.size(),

                                                     userAuthenticationRequired, timeoutMillis,

                                                     secureUserId, mac.data(), &accessGranted)) {

                                                     secureUserId, mac.data(), &accessGranted,

                                                     scratchSpace, sizeof(scratchSpace))) {

        return {};

    }

    return accessGranted;
@@ -267,7 +287,7 @@ bool FakeSecureHardwarePresentationProxy::calcMacKey( 
    }

    return eicPresentationCalcMacKey(&ctx_, sessionTranscript.data(), sessionTranscript.size(),

                                     readerEphemeralPublicKey.data(), signingKeyBlob.data(),

                                     docType.c_str(), numNamespacesWithValues,

                                     docType.c_str(), docType.size(), numNamespacesWithValues,

                                     expectedProofOfProvisioningSize);

}
@@ -275,10 +295,16 @@ AccessCheckResult FakeSecureHardwarePresentationProxy::startRetrieveEntryValue( 
        const string& nameSpace, const string& name, unsigned int newNamespaceNumEntries,

        int32_t entrySize, const vector<int32_t>& accessControlProfileIds) {

    uint8_t scratchSpace[512];

    vector<uint8_t> uint8AccessControlProfileIds;

    for (size_t i = 0; i < accessControlProfileIds.size(); i++) {

        uint8AccessControlProfileIds.push_back(accessControlProfileIds[i] & 0xFF);

    }



    EicAccessCheckResult result = eicPresentationStartRetrieveEntryValue(

            &ctx_, nameSpace.c_str(), name.c_str(), newNamespaceNumEntries, entrySize,

            accessControlProfileIds.data(), accessControlProfileIds.size(), scratchSpace,

            sizeof scratchSpace);

            &ctx_, nameSpace.c_str(), nameSpace.size(), name.c_str(), name.size(),

            newNamespaceNumEntries, entrySize, uint8AccessControlProfileIds.data(),

            uint8AccessControlProfileIds.size(), scratchSpace,

            sizeof(scratchSpace));

    switch (result) {

        case EIC_ACCESS_CHECK_RESULT_OK:

            return AccessCheckResult::kOk;
@@ -299,12 +325,18 @@ optional<vector<uint8_t>> FakeSecureHardwarePresentationProxy::retrieveEntryValu 
        const vector<uint8_t>& encryptedContent, const string& nameSpace, const string& name,

        const vector<int32_t>& accessControlProfileIds) {

    uint8_t scratchSpace[512];

    vector<uint8_t> uint8AccessControlProfileIds;

    for (size_t i = 0; i < accessControlProfileIds.size(); i++) {

        uint8AccessControlProfileIds.push_back(accessControlProfileIds[i] & 0xFF);

    }



    vector<uint8_t> content;

    content.resize(encryptedContent.size() - 28);

    if (!eicPresentationRetrieveEntryValue(

                &ctx_, encryptedContent.data(), encryptedContent.size(), content.data(),

                nameSpace.c_str(), name.c_str(), accessControlProfileIds.data(),

                accessControlProfileIds.size(), scratchSpace, sizeof scratchSpace)) {

                nameSpace.c_str(), nameSpace.size(), name.c_str(), name.size(),

                uint8AccessControlProfileIds.data(), uint8AccessControlProfileIds.size(),

                scratchSpace, sizeof(scratchSpace))) {

        return {};

    }

    return content;
@@ -324,9 +356,9 @@ optional<vector<uint8_t>> FakeSecureHardwarePresentationProxy::deleteCredential( 
        const string& docType, const vector<uint8_t>& challenge, bool includeChallenge,

        size_t proofOfDeletionCborSize) {

    vector<uint8_t> signatureOfToBeSigned(EIC_ECDSA_P256_SIGNATURE_SIZE);

    if (!eicPresentationDeleteCredential(&ctx_, docType.c_str(), challenge.data(), challenge.size(),

                                         includeChallenge, proofOfDeletionCborSize,

                                         signatureOfToBeSigned.data())) {

    if (!eicPresentationDeleteCredential(&ctx_, docType.c_str(), docType.size(), challenge.data(),

                                         challenge.size(), includeChallenge,

                                         proofOfDeletionCborSize, signatureOfToBeSigned.data())) {

        return {};

    }

    return signatureOfToBeSigned;
@@ -336,8 +368,8 @@ optional<vector<uint8_t>> FakeSecureHardwarePresentationProxy::proveOwnership( 
        const string& docType, bool testCredential, const vector<uint8_t>& challenge,

        size_t proofOfOwnershipCborSize) {

    vector<uint8_t> signatureOfToBeSigned(EIC_ECDSA_P256_SIGNATURE_SIZE);

    if (!eicPresentationProveOwnership(&ctx_, docType.c_str(), testCredential, challenge.data(),

                                       challenge.size(), proofOfOwnershipCborSize,

    if (!eicPresentationProveOwnership(&ctx_, docType.c_str(), docType.size(), testCredential,

                                       challenge.data(), challenge.size(), proofOfOwnershipCborSize,

                                       signatureOfToBeSigned.data())) {

        return {};

    }

identity/aidl/default/libeic/EicCbor.c

+24 −20
Original line number Diff line number Diff line
@@ -91,7 +91,7 @@ size_t eicCborAdditionalLengthBytesFor(size_t size) { 
    return 8;

}



void eicCborBegin(EicCbor* cbor, int majorType, size_t size) {

void eicCborBegin(EicCbor* cbor, int majorType, uint64_t size) {

    uint8_t data[9];



    if (size < 24) {
@@ -132,10 +132,13 @@ void eicCborAppendByteString(EicCbor* cbor, const uint8_t* data, size_t dataSize 
    eicCborAppend(cbor, data, dataSize);

}



void eicCborAppendString(EicCbor* cbor, const char* str) {

    size_t length = eicStrLen(str);

    eicCborBegin(cbor, EIC_CBOR_MAJOR_TYPE_STRING, length);

    eicCborAppend(cbor, (const uint8_t*)str, length);

void eicCborAppendString(EicCbor* cbor, const char* str, size_t strLength) {

    eicCborBegin(cbor, EIC_CBOR_MAJOR_TYPE_STRING, strLength);

    eicCborAppend(cbor, (const uint8_t*)str, strLength);

}



void eicCborAppendStringZ(EicCbor* cbor, const char* str) {

    eicCborAppendString(cbor, str, eicStrLen(str));

}



void eicCborAppendSimple(EicCbor* cbor, uint8_t simpleValue) {
@@ -153,13 +156,13 @@ void eicCborAppendSemantic(EicCbor* cbor, uint64_t value) { 
}



void eicCborAppendUnsigned(EicCbor* cbor, uint64_t value) {

    size_t encoded = value;

    uint64_t encoded = value;

    eicCborBegin(cbor, EIC_CBOR_MAJOR_TYPE_UNSIGNED, encoded);

}



void eicCborAppendNumber(EicCbor* cbor, int64_t value) {

    if (value < 0) {

        size_t encoded = -1 - value;

        uint64_t encoded = -1 - value;

        eicCborBegin(cbor, EIC_CBOR_MAJOR_TYPE_NEGATIVE, encoded);

    } else {

        eicCborAppendUnsigned(cbor, value);
@@ -188,19 +191,19 @@ bool eicCborCalcAccessControl(EicCbor* cborBuilder, int id, const uint8_t* reade 
        }

    }

    eicCborAppendMap(cborBuilder, numPairs);

    eicCborAppendString(cborBuilder, "id");

    eicCborAppendStringZ(cborBuilder, "id");

    eicCborAppendUnsigned(cborBuilder, id);

    if (readerCertificateSize > 0) {

        eicCborAppendString(cborBuilder, "readerCertificate");

        eicCborAppendStringZ(cborBuilder, "readerCertificate");

        eicCborAppendByteString(cborBuilder, readerCertificate, readerCertificateSize);

    }

    if (userAuthenticationRequired) {

        eicCborAppendString(cborBuilder, "userAuthenticationRequired");

        eicCborAppendStringZ(cborBuilder, "userAuthenticationRequired");

        eicCborAppendBool(cborBuilder, userAuthenticationRequired);

        eicCborAppendString(cborBuilder, "timeoutMillis");

        eicCborAppendStringZ(cborBuilder, "timeoutMillis");

        eicCborAppendUnsigned(cborBuilder, timeoutMillis);

        if (secureUserId > 0) {

            eicCborAppendString(cborBuilder, "secureUserId");

            eicCborAppendStringZ(cborBuilder, "secureUserId");

            eicCborAppendUnsigned(cborBuilder, secureUserId);

        }

    }
@@ -214,20 +217,21 @@ bool eicCborCalcAccessControl(EicCbor* cborBuilder, int id, const uint8_t* reade 
    return true;

}



bool eicCborCalcEntryAdditionalData(const int* accessControlProfileIds,

bool eicCborCalcEntryAdditionalData(const uint8_t* accessControlProfileIds,

                                    size_t numAccessControlProfileIds, const char* nameSpace,

                                    const char* name, uint8_t* cborBuffer, size_t cborBufferSize,

                                    size_t* outAdditionalDataCborSize,

                                    size_t nameSpaceLength, const char* name,

                                    size_t nameLength, uint8_t* cborBuffer,

                                    size_t cborBufferSize, size_t* outAdditionalDataCborSize,

                                    uint8_t additionalDataSha256[EIC_SHA256_DIGEST_SIZE]) {

    EicCbor cborBuilder;



    eicCborInit(&cborBuilder, cborBuffer, cborBufferSize);

    eicCborAppendMap(&cborBuilder, 3);

    eicCborAppendString(&cborBuilder, "Namespace");

    eicCborAppendString(&cborBuilder, nameSpace);

    eicCborAppendString(&cborBuilder, "Name");

    eicCborAppendString(&cborBuilder, name);

    eicCborAppendString(&cborBuilder, "AccessControlProfileIds");

    eicCborAppendStringZ(&cborBuilder, "Namespace");

    eicCborAppendString(&cborBuilder, nameSpace, nameSpaceLength);

    eicCborAppendStringZ(&cborBuilder, "Name");

    eicCborAppendString(&cborBuilder, name, nameLength);

    eicCborAppendStringZ(&cborBuilder, "AccessControlProfileIds");

    eicCborAppendArray(&cborBuilder, numAccessControlProfileIds);

    for (size_t n = 0; n < numAccessControlProfileIds; n++) {

        eicCborAppendNumber(&cborBuilder, accessControlProfileIds[n]);

identity/aidl/default/libeic/EicCbor.h

+9 −15
Original line number Diff line number Diff line
@@ -102,13 +102,16 @@ void eicCborAppend(EicCbor* cbor, const uint8_t* data, size_t size); 
#define EIC_CBOR_SEMANTIC_TAG_ENCODED_CBOR 24



/* Begins a new CBOR value. */

void eicCborBegin(EicCbor* cbor, int majorType, size_t size);

void eicCborBegin(EicCbor* cbor, int majorType, uint64_t size);



/* Appends a bytestring. */

void eicCborAppendByteString(EicCbor* cbor, const uint8_t* data, size_t dataSize);



/* Appends a UTF-8 string. */

void eicCborAppendString(EicCbor* cbor, const char* str, size_t strLength);



/* Appends a NUL-terminated UTF-8 string. */

void eicCborAppendString(EicCbor* cbor, const char* str);

void eicCborAppendStringZ(EicCbor* cbor, const char* str);



/* Appends a simple value. */

void eicCborAppendSimple(EicCbor* cbor, uint8_t simpleValue);
@@ -144,22 +147,13 @@ bool eicCborCalcAccessControl(EicCbor* cborBuilder, int id, const uint8_t* reade 
                              size_t readerCertificateSize, bool userAuthenticationRequired,

                              uint64_t timeoutMillis, uint64_t secureUserId);



bool eicCborCalcEntryAdditionalData(const int* accessControlProfileIds,

bool eicCborCalcEntryAdditionalData(const uint8_t* accessControlProfileIds,

                                    size_t numAccessControlProfileIds, const char* nameSpace,

                                    const char* name, uint8_t* cborBuffer, size_t cborBufferSize,

                                    size_t* outAdditionalDataCborSize,

                                    size_t nameSpaceLength, const char* name,

                                    size_t nameLength, uint8_t* cborBuffer,

                                    size_t cborBufferSize, size_t* outAdditionalDataCborSize,

                                    uint8_t additionalDataSha256[EIC_SHA256_DIGEST_SIZE]);



// The maximum size of an encoded Secure Access Control Profile that we

// support. Since the SACP may contain a reader certificate chain these can get

// pretty big.

//

// Currently we allocate space on the stack for this structure which is why we

// have a maximum size. We can get rid of the maximum size by incrementally

// building/verifying the SACP. TODO: actually do this.

//

#define EIC_MAX_CBOR_SIZE_FOR_ACCESS_CONTROL_PROFILE 512



#ifdef __cplusplus

}

#endif

identity/aidl/default/libeic/EicCommon.h

0 → 100644
+44 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2020, 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.

 */



#if !defined(EIC_INSIDE_LIBEIC_H) && !defined(EIC_COMPILATION)

#error "Never include this file directly, include libeic.h instead."

#endif



#ifndef ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H

#define ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H



// Feature version 202009:

//

//         CredentialKeys = [

//              bstr,   ; storageKey, a 128-bit AES key

//              bstr,   ; credentialPrivKey, the private key for credentialKey

//         ]

//

// Feature version 202101:

//

//         CredentialKeys = [

//              bstr,   ; storageKey, a 128-bit AES key

//              bstr,   ; credentialPrivKey, the private key for credentialKey

//              bstr    ; proofOfProvisioning SHA-256

//         ]

//

// where storageKey is 16 bytes, credentialPrivateKey is 32 bytes, and proofOfProvisioning

// SHA-256 is 32 bytes.

#define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202009 52

#define EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202101 86



#endif  // ANDROID_HARDWARE_IDENTITY_EIC_COMMON_H

identity/aidl/default/libeic/EicPresentation.c

+57 −48

File changed.

Preview size limit exceeded, changes collapsed.