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Diffstat (limited to 'identity/aidl/default/libeic/EicProvisioning.c')
-rw-r--r--identity/aidl/default/libeic/EicProvisioning.c113
1 files changed, 79 insertions, 34 deletions
diff --git a/identity/aidl/default/libeic/EicProvisioning.c b/identity/aidl/default/libeic/EicProvisioning.c
index 3b4148e571..ff009dde6b 100644
--- a/identity/aidl/default/libeic/EicProvisioning.c
+++ b/identity/aidl/default/libeic/EicProvisioning.c
@@ -15,9 +15,23 @@
*/
#include "EicProvisioning.h"
+#include "EicCommon.h"
+
+#include <inttypes.h>
+
+// Global used for assigning ids for provisioning objects.
+//
+static uint32_t gProvisioningLastIdAssigned = 0;
bool eicProvisioningInit(EicProvisioning* ctx, bool testCredential) {
eicMemSet(ctx, '\0', sizeof(EicProvisioning));
+
+ if (!eicNextId(&gProvisioningLastIdAssigned)) {
+ eicDebug("Error getting id for object");
+ return false;
+ }
+ ctx->id = gProvisioningLastIdAssigned;
+
ctx->testCredential = testCredential;
if (!eicOpsRandom(ctx->storageKey, EIC_AES_128_KEY_SIZE)) {
return false;
@@ -27,18 +41,18 @@ bool eicProvisioningInit(EicProvisioning* ctx, bool testCredential) {
}
bool eicProvisioningInitForUpdate(EicProvisioning* ctx, bool testCredential, const char* docType,
- const uint8_t* encryptedCredentialKeys,
+ size_t docTypeLength, const uint8_t* encryptedCredentialKeys,
size_t encryptedCredentialKeysSize) {
- uint8_t credentialKeys[86];
+ uint8_t credentialKeys[EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202101];
// For feature version 202009 it's 52 bytes long and for feature version 202101 it's 86
// bytes (the additional data is the ProofOfProvisioning SHA-256). We need
// to support loading all feature versions.
//
bool expectPopSha256 = false;
- if (encryptedCredentialKeysSize == 52 + 28) {
+ if (encryptedCredentialKeysSize == EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202009 + 28) {
/* do nothing */
- } else if (encryptedCredentialKeysSize == 86 + 28) {
+ } else if (encryptedCredentialKeysSize == EIC_CREDENTIAL_KEYS_CBOR_SIZE_FEATURE_VERSION_202101 + 28) {
expectPopSha256 = true;
} else {
eicDebug("Unexpected size %zd for encryptedCredentialKeys", encryptedCredentialKeysSize);
@@ -46,12 +60,19 @@ bool eicProvisioningInitForUpdate(EicProvisioning* ctx, bool testCredential, con
}
eicMemSet(ctx, '\0', sizeof(EicProvisioning));
+
+ if (!eicNextId(&gProvisioningLastIdAssigned)) {
+ eicDebug("Error getting id for object");
+ return false;
+ }
+ ctx->id = gProvisioningLastIdAssigned;
+
ctx->testCredential = testCredential;
if (!eicOpsDecryptAes128Gcm(eicOpsGetHardwareBoundKey(testCredential), encryptedCredentialKeys,
encryptedCredentialKeysSize,
// DocType is the additionalAuthenticatedData
- (const uint8_t*)docType, eicStrLen(docType), credentialKeys)) {
+ (const uint8_t*)docType, docTypeLength, credentialKeys)) {
eicDebug("Error decrypting CredentialKeys");
return false;
}
@@ -95,9 +116,27 @@ bool eicProvisioningInitForUpdate(EicProvisioning* ctx, bool testCredential, con
return true;
}
+bool eicProvisioningShutdown(EicProvisioning* ctx) {
+ if (ctx->id == 0) {
+ eicDebug("Trying to shut down provsioning with id 0");
+ return false;
+ }
+ eicDebug("Shut down provsioning with id %" PRIu32, ctx->id);
+ eicMemSet(ctx, '\0', sizeof(EicProvisioning));
+ return true;
+}
+
+bool eicProvisioningGetId(EicProvisioning* ctx, uint32_t* outId) {
+ *outId = ctx->id;
+ return true;
+}
+
bool eicProvisioningCreateCredentialKey(EicProvisioning* ctx, const uint8_t* challenge,
size_t challengeSize, const uint8_t* applicationId,
- size_t applicationIdSize, uint8_t* publicKeyCert,
+ size_t applicationIdSize, const uint8_t* attestationKeyBlob,
+ size_t attestationKeyBlobSize,
+ const uint8_t* attestationKeyCert,
+ size_t attestationKeyCertSize, uint8_t* publicKeyCert,
size_t* publicKeyCertSize) {
if (ctx->isUpdate) {
eicDebug("Cannot create CredentialKey on update");
@@ -106,7 +145,9 @@ bool eicProvisioningCreateCredentialKey(EicProvisioning* ctx, const uint8_t* cha
if (!eicOpsCreateCredentialKey(ctx->credentialPrivateKey, challenge, challengeSize,
applicationId, applicationIdSize, ctx->testCredential,
- publicKeyCert, publicKeyCertSize)) {
+ attestationKeyBlob, attestationKeyBlobSize, attestationKeyCert,
+ attestationKeyCertSize, publicKeyCert, publicKeyCertSize)) {
+ eicDebug("Error creating credential key");
return false;
}
return true;
@@ -114,7 +155,7 @@ bool eicProvisioningCreateCredentialKey(EicProvisioning* ctx, const uint8_t* cha
bool eicProvisioningStartPersonalization(EicProvisioning* ctx, int accessControlProfileCount,
const int* entryCounts, size_t numEntryCounts,
- const char* docType,
+ const char* docType, size_t docTypeLength,
size_t expectedProofOfProvisioningSize) {
if (numEntryCounts >= EIC_MAX_NUM_NAMESPACES) {
return false;
@@ -150,7 +191,7 @@ bool eicProvisioningStartPersonalization(EicProvisioning* ctx, int accessControl
// ]
//
eicCborAppendArray(&ctx->cbor, 4);
- eicCborAppendString(&ctx->cbor, "Signature1");
+ eicCborAppendStringZ(&ctx->cbor, "Signature1");
// The COSE Encoded protected headers is just a single field with
// COSE_LABEL_ALG (1) -> COSE_ALG_ECSDA_256 (-7). For simplicitly we just
@@ -174,8 +215,8 @@ bool eicProvisioningStartPersonalization(EicProvisioning* ctx, int accessControl
eicCborEnableSecondaryDigesterSha256(&ctx->cbor, &ctx->proofOfProvisioningDigester);
eicCborAppendArray(&ctx->cbor, 5);
- eicCborAppendString(&ctx->cbor, "ProofOfProvisioning");
- eicCborAppendString(&ctx->cbor, docType);
+ eicCborAppendStringZ(&ctx->cbor, "ProofOfProvisioning");
+ eicCborAppendString(&ctx->cbor, docType, docTypeLength);
eicCborAppendArray(&ctx->cbor, accessControlProfileCount);
@@ -185,12 +226,12 @@ bool eicProvisioningStartPersonalization(EicProvisioning* ctx, int accessControl
bool eicProvisioningAddAccessControlProfile(EicProvisioning* ctx, int id,
const uint8_t* readerCertificate,
size_t readerCertificateSize,
- bool userAuthenticationRequired, uint64_t timeoutMillis,
- uint64_t secureUserId, uint8_t outMac[28]) {
- uint8_t cborBuffer[EIC_MAX_CBOR_SIZE_FOR_ACCESS_CONTROL_PROFILE];
+ bool userAuthenticationRequired,
+ uint64_t timeoutMillis, uint64_t secureUserId,
+ uint8_t outMac[28], uint8_t* scratchSpace,
+ size_t scratchSpaceSize) {
EicCbor cborBuilder;
-
- eicCborInit(&cborBuilder, cborBuffer, EIC_MAX_CBOR_SIZE_FOR_ACCESS_CONTROL_PROFILE);
+ eicCborInit(&cborBuilder, scratchSpace, scratchSpaceSize);
if (!eicCborCalcAccessControl(&cborBuilder, id, readerCertificate, readerCertificateSize,
userAuthenticationRequired, timeoutMillis, secureUserId)) {
@@ -209,7 +250,7 @@ bool eicProvisioningAddAccessControlProfile(EicProvisioning* ctx, int id,
// The ACP CBOR in the provisioning receipt doesn't include secureUserId so build
// it again.
- eicCborInit(&cborBuilder, cborBuffer, EIC_MAX_CBOR_SIZE_FOR_ACCESS_CONTROL_PROFILE);
+ eicCborInit(&cborBuilder, scratchSpace, scratchSpaceSize);
if (!eicCborCalcAccessControl(&cborBuilder, id, readerCertificate, readerCertificateSize,
userAuthenticationRequired, timeoutMillis,
0 /* secureUserId */)) {
@@ -222,9 +263,10 @@ bool eicProvisioningAddAccessControlProfile(EicProvisioning* ctx, int id,
return true;
}
-bool eicProvisioningBeginAddEntry(EicProvisioning* ctx, const int* accessControlProfileIds,
+bool eicProvisioningBeginAddEntry(EicProvisioning* ctx, const uint8_t* accessControlProfileIds,
size_t numAccessControlProfileIds, const char* nameSpace,
- const char* name, uint64_t entrySize, uint8_t* scratchSpace,
+ size_t nameSpaceLength, const char* name, size_t nameLength,
+ uint64_t entrySize, uint8_t* scratchSpace,
size_t scratchSpaceSize) {
uint8_t* additionalDataCbor = scratchSpace;
const size_t additionalDataCborBufSize = scratchSpaceSize;
@@ -233,9 +275,9 @@ bool eicProvisioningBeginAddEntry(EicProvisioning* ctx, const int* accessControl
// We'll need to calc and store a digest of additionalData to check that it's the same
// additionalData being passed in for every eicProvisioningAddEntryValue() call...
if (!eicCborCalcEntryAdditionalData(accessControlProfileIds, numAccessControlProfileIds,
- nameSpace, name, additionalDataCbor,
- additionalDataCborBufSize, &additionalDataCborSize,
- ctx->additionalDataSha256)) {
+ nameSpace, nameSpaceLength, name, nameLength,
+ additionalDataCbor, additionalDataCborBufSize,
+ &additionalDataCborSize, ctx->additionalDataSha256)) {
return false;
}
@@ -244,7 +286,7 @@ bool eicProvisioningBeginAddEntry(EicProvisioning* ctx, const int* accessControl
ctx->curNamespaceNumProcessed = 0;
// Opens the main map: { * Namespace => [ + Entry ] }
eicCborAppendMap(&ctx->cbor, ctx->numEntryCounts);
- eicCborAppendString(&ctx->cbor, nameSpace);
+ eicCborAppendString(&ctx->cbor, nameSpace, nameSpaceLength);
// Opens the per-namespace array: [ + Entry ]
eicCborAppendArray(&ctx->cbor, ctx->entryCounts[ctx->curNamespace]);
}
@@ -252,37 +294,39 @@ bool eicProvisioningBeginAddEntry(EicProvisioning* ctx, const int* accessControl
if (ctx->curNamespaceNumProcessed == ctx->entryCounts[ctx->curNamespace]) {
ctx->curNamespace += 1;
ctx->curNamespaceNumProcessed = 0;
- eicCborAppendString(&ctx->cbor, nameSpace);
+ eicCborAppendString(&ctx->cbor, nameSpace, nameSpaceLength);
// Opens the per-namespace array: [ + Entry ]
eicCborAppendArray(&ctx->cbor, ctx->entryCounts[ctx->curNamespace]);
}
eicCborAppendMap(&ctx->cbor, 3);
- eicCborAppendString(&ctx->cbor, "name");
- eicCborAppendString(&ctx->cbor, name);
+ eicCborAppendStringZ(&ctx->cbor, "name");
+ eicCborAppendString(&ctx->cbor, name, nameLength);
ctx->curEntrySize = entrySize;
ctx->curEntryNumBytesReceived = 0;
- eicCborAppendString(&ctx->cbor, "value");
+ eicCborAppendStringZ(&ctx->cbor, "value");
ctx->curNamespaceNumProcessed += 1;
return true;
}
-bool eicProvisioningAddEntryValue(EicProvisioning* ctx, const int* accessControlProfileIds,
+bool eicProvisioningAddEntryValue(EicProvisioning* ctx, const uint8_t* accessControlProfileIds,
size_t numAccessControlProfileIds, const char* nameSpace,
- const char* name, const uint8_t* content, size_t contentSize,
+ size_t nameSpaceLength, const char* name, size_t nameLength,
+ const uint8_t* content, size_t contentSize,
uint8_t* outEncryptedContent, uint8_t* scratchSpace,
size_t scratchSpaceSize) {
uint8_t* additionalDataCbor = scratchSpace;
const size_t additionalDataCborBufSize = scratchSpaceSize;
size_t additionalDataCborSize;
-
uint8_t calculatedSha256[EIC_SHA256_DIGEST_SIZE];
+
if (!eicCborCalcEntryAdditionalData(accessControlProfileIds, numAccessControlProfileIds,
- nameSpace, name, additionalDataCbor,
- additionalDataCborBufSize, &additionalDataCborSize,
+ nameSpace, nameSpaceLength, name, nameLength,
+ additionalDataCbor, additionalDataCborBufSize,
+ &additionalDataCborSize,
calculatedSha256)) {
return false;
}
@@ -305,7 +349,7 @@ bool eicProvisioningAddEntryValue(EicProvisioning* ctx, const int* accessControl
// If done with this entry, close the map
ctx->curEntryNumBytesReceived += contentSize;
if (ctx->curEntryNumBytesReceived == ctx->curEntrySize) {
- eicCborAppendString(&ctx->cbor, "accessControlProfiles");
+ eicCborAppendStringZ(&ctx->cbor, "accessControlProfiles");
eicCborAppendArray(&ctx->cbor, numAccessControlProfileIds);
for (size_t n = 0; n < numAccessControlProfileIds; n++) {
eicCborAppendNumber(&ctx->cbor, accessControlProfileIds[n]);
@@ -337,6 +381,7 @@ bool eicProvisioningFinishAddingEntries(
}
bool eicProvisioningFinishGetCredentialData(EicProvisioning* ctx, const char* docType,
+ size_t docTypeLength,
uint8_t* encryptedCredentialKeys,
size_t* encryptedCredentialKeysSize) {
EicCbor cbor;
@@ -367,7 +412,7 @@ bool eicProvisioningFinishGetCredentialData(EicProvisioning* ctx, const char* do
if (!eicOpsEncryptAes128Gcm(
eicOpsGetHardwareBoundKey(ctx->testCredential), nonce, cborBuf, cbor.size,
// DocType is the additionalAuthenticatedData
- (const uint8_t*)docType, eicStrLen(docType), encryptedCredentialKeys)) {
+ (const uint8_t*)docType, docTypeLength, encryptedCredentialKeys)) {
eicDebug("Error encrypting CredentialKeys");
return false;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 21:43:11 +0000