libavb_atx: Remove GSK rollback index and increase key size.
am: 43e12d8b29
Change-Id: I05ce1f0b0093affbfbef13faa5fa257acb61162d
diff --git a/avbtool b/avbtool
index 6ebbd8c..a855e84 100755
--- a/avbtool
+++ b/avbtool
@@ -2570,14 +2570,8 @@
signature = bytearray()
if authority_key_path:
padding_and_hash = bytearray()
- algorithm_name = None
- hasher = None
- if is_intermediate_authority:
- hasher = hashlib.sha512()
- algorithm_name = 'SHA512_RSA4096'
- else:
- hasher = hashlib.sha256()
- algorithm_name = 'SHA256_RSA2048'
+ algorithm_name = 'SHA512_RSA4096'
+ hasher = hashlib.sha512()
padding_and_hash.extend(ALGORITHMS[algorithm_name].padding)
hasher.update(signed_data)
padding_and_hash.extend(hasher.digest())
@@ -2602,14 +2596,15 @@
Raises:
AvbError: If an argument is incorrect.
"""
- if len(product_id) != 16:
+ EXPECTED_PRODUCT_ID_SIZE = 16
+ if len(product_id) != EXPECTED_PRODUCT_ID_SIZE:
raise AvbError('Invalid Product ID length.')
output.write(struct.pack('<I', 1)) # Format Version
write_rsa_key(output, Crypto.PublicKey.RSA.importKey(root_authority_key))
output.write(product_id)
def make_atx_metadata(self, output, intermediate_key_certificate,
- product_key_certificate, google_key_version):
+ product_key_certificate):
"""Implements the 'make_atx_metadata' command.
Android Things metadata are included in vbmeta images to facilitate
@@ -2624,20 +2619,18 @@
product_key_certificate: A certificate file as output by
make_atx_certificate with
is_intermediate_authority set to false.
- google_key_version: The version of the Google Signing Key used in the
- associated vbmeta image.
Raises:
AvbError: If an argument is incorrect.
"""
- if len(intermediate_key_certificate) != 1108:
+ EXPECTED_CERTIFICATE_SIZE = 1620
+ if len(intermediate_key_certificate) != EXPECTED_CERTIFICATE_SIZE:
raise AvbError('Invalid intermediate key certificate length.')
- if len(product_key_certificate) != 852:
+ if len(product_key_certificate) != EXPECTED_CERTIFICATE_SIZE:
raise AvbError('Invalid product key certificate length.')
output.write(struct.pack('<I', 1)) # Format Version
output.write(intermediate_key_certificate)
output.write(product_key_certificate)
- output.write(struct.pack('<Q', google_key_version))
def calc_hash_level_offsets(image_size, block_size, digest_size):
@@ -3098,10 +3091,6 @@
help='Path to product key certificate file',
type=argparse.FileType('rb'),
required=True)
- sub_parser.add_argument('--google_key_version',
- help=('Version of the Google signing key'),
- type=parse_number,
- default=0)
sub_parser.set_defaults(func=self.make_atx_metadata)
args = parser.parse_args(argv[1:])
@@ -3203,8 +3192,7 @@
"""Implements the 'make_atx_metadata' sub-command."""
self.avb.make_atx_metadata(args.output,
args.intermediate_key_certificate.read(),
- args.product_key_certificate.read(),
- args.google_key_version)
+ args.product_key_certificate.read())
if __name__ == '__main__':
diff --git a/libavb_atx/avb_atx_types.h b/libavb_atx/avb_atx_types.h
index ae1b438..6d69859 100644
--- a/libavb_atx/avb_atx_types.h
+++ b/libavb_atx/avb_atx_types.h
@@ -39,46 +39,36 @@
/* Size in bytes of an Android Things product ID. */
#define AVB_ATX_PRODUCT_ID_SIZE 16
-/* Size in bytes of a serialized public key with a 2048-bit modulus. */
-#define AVB_ATX_PUBLIC_KEY_SIZE_2048 (sizeof(AvbRSAPublicKeyHeader) + 512)
-
/* Size in bytes of a serialized public key with a 4096-bit modulus. */
-#define AVB_ATX_PUBLIC_KEY_SIZE_4096 (sizeof(AvbRSAPublicKeyHeader) + 1024)
+#define AVB_ATX_PUBLIC_KEY_SIZE (sizeof(AvbRSAPublicKeyHeader) + 1024)
/* Data structure of Android Things permanent attributes. */
typedef struct AvbAtxPermanentAttributes {
uint32_t version;
- uint8_t product_root_public_key[AVB_ATX_PUBLIC_KEY_SIZE_4096];
+ uint8_t product_root_public_key[AVB_ATX_PUBLIC_KEY_SIZE];
uint8_t product_id[AVB_ATX_PRODUCT_ID_SIZE];
} AVB_ATTR_PACKED AvbAtxPermanentAttributes;
/* Data structure of signed fields in an Android Things certificate. */
typedef struct AvbAtxCertificateSignedData {
uint32_t version;
- uint8_t public_key[AVB_ATX_PUBLIC_KEY_SIZE_2048];
+ uint8_t public_key[AVB_ATX_PUBLIC_KEY_SIZE];
uint8_t subject[AVB_SHA256_DIGEST_SIZE];
uint8_t usage[AVB_SHA256_DIGEST_SIZE];
uint64_t key_version;
} AVB_ATTR_PACKED AvbAtxCertificateSignedData;
-/* Data structure of a certificate signed by a 4096-bit key. */
-typedef struct AvbAtxCertificate4096 {
+/* Data structure of an Android Things certificate. */
+typedef struct AvbAtxCertificate {
AvbAtxCertificateSignedData signed_data;
uint8_t signature[AVB_RSA4096_NUM_BYTES];
-} AVB_ATTR_PACKED AvbAtxCertificate4096;
-
-/* Data structure of a certificate signed by a 2048-bit key. */
-typedef struct AvbAtxCertificate2048 {
- AvbAtxCertificateSignedData signed_data;
- uint8_t signature[AVB_RSA2048_NUM_BYTES];
-} AVB_ATTR_PACKED AvbAtxCertificate2048;
+} AVB_ATTR_PACKED AvbAtxCertificate;
/* Data structure of Android Things public key metadata in vbmeta. */
typedef struct AvbAtxPublicKeyMetadata {
uint32_t version;
- AvbAtxCertificate4096 product_intermediate_key_certificate;
- AvbAtxCertificate2048 product_signing_key_certificate;
- uint64_t google_signing_key_version;
+ AvbAtxCertificate product_intermediate_key_certificate;
+ AvbAtxCertificate product_signing_key_certificate;
} AVB_ATTR_PACKED AvbAtxPublicKeyMetadata;
#ifdef __cplusplus
diff --git a/libavb_atx/avb_atx_validate.c b/libavb_atx/avb_atx_validate.c
index 7a29d66..fb200c1 100644
--- a/libavb_atx/avb_atx_validate.c
+++ b/libavb_atx/avb_atx_validate.c
@@ -74,17 +74,16 @@
return true;
}
-/* Verifies signature and fields of a PIK certificate. */
-static bool verify_pik_certificate(
- AvbAtxCertificate4096* certificate,
- uint8_t authority[AVB_ATX_PUBLIC_KEY_SIZE_4096],
- uint64_t minimum_version) {
+/* Verifies the format, key version, usage, and signature of a certificate. */
+static bool verify_certificate(AvbAtxCertificate* certificate,
+ uint8_t authority[AVB_ATX_PUBLIC_KEY_SIZE],
+ uint64_t minimum_key_version,
+ uint8_t expected_usage[AVB_SHA256_DIGEST_SIZE]) {
const AvbAlgorithmData* algorithm_data;
uint8_t certificate_hash[AVB_SHA512_DIGEST_SIZE];
- uint8_t expected_usage[AVB_SHA256_DIGEST_SIZE];
if (certificate->signed_data.version != 1) {
- avb_error("Unsupported PIK certificate format.\n");
+ avb_error("Unsupported certificate format.\n");
return false;
}
algorithm_data = avb_get_algorithm_data(AVB_ALGORITHM_TYPE_SHA512_RSA4096);
@@ -92,25 +91,39 @@
sizeof(AvbAtxCertificateSignedData),
certificate_hash);
if (!avb_rsa_verify(authority,
- AVB_ATX_PUBLIC_KEY_SIZE_4096,
+ AVB_ATX_PUBLIC_KEY_SIZE,
certificate->signature,
AVB_RSA4096_NUM_BYTES,
certificate_hash,
AVB_SHA512_DIGEST_SIZE,
algorithm_data->padding,
algorithm_data->padding_len)) {
- avb_error("Invalid PIK certificate signature.\n");
+ avb_error("Invalid certificate signature.\n");
return false;
}
- sha256_str("com.google.android.things.vboot.ca", expected_usage);
+ if (certificate->signed_data.key_version < minimum_key_version) {
+ avb_error("Key rollback detected.\n");
+ return false;
+ }
if (0 != avb_safe_memcmp(certificate->signed_data.usage,
expected_usage,
AVB_SHA256_DIGEST_SIZE)) {
- avb_error("Invalid PIK certificate usage.\n");
+ avb_error("Invalid certificate usage.\n");
return false;
}
- if (certificate->signed_data.key_version < minimum_version) {
- avb_error("PIK rollback detected.\n");
+ return true;
+}
+
+/* Verifies signature and fields of a PIK certificate. */
+static bool verify_pik_certificate(AvbAtxCertificate* certificate,
+ uint8_t authority[AVB_ATX_PUBLIC_KEY_SIZE],
+ uint64_t minimum_version) {
+ uint8_t expected_usage[AVB_SHA256_DIGEST_SIZE];
+
+ sha256_str("com.google.android.things.vboot.ca", expected_usage);
+ if (!verify_certificate(
+ certificate, authority, minimum_version, expected_usage)) {
+ avb_error("Invalid PIK certificate.\n");
return false;
}
return true;
@@ -118,31 +131,17 @@
/* Verifies signature and fields of a PSK certificate. */
static bool verify_psk_certificate(
- AvbAtxCertificate2048* certificate,
- uint8_t authority[AVB_ATX_PUBLIC_KEY_SIZE_2048],
+ AvbAtxCertificate* certificate,
+ uint8_t authority[AVB_ATX_PUBLIC_KEY_SIZE],
uint64_t minimum_version,
uint8_t product_id[AVB_ATX_PRODUCT_ID_SIZE]) {
- const AvbAlgorithmData* algorithm_data;
- uint8_t certificate_hash[AVB_SHA256_DIGEST_SIZE];
uint8_t expected_subject[AVB_SHA256_DIGEST_SIZE];
uint8_t expected_usage[AVB_SHA256_DIGEST_SIZE];
- if (certificate->signed_data.version != 1) {
- avb_error("Unsupported PSK certificate format.\n");
- return false;
- }
- algorithm_data = avb_get_algorithm_data(AVB_ALGORITHM_TYPE_SHA256_RSA2048);
- sha256((const uint8_t*)&certificate->signed_data,
- sizeof(AvbAtxCertificateSignedData),
- certificate_hash);
- if (!avb_rsa_verify(authority,
- AVB_ATX_PUBLIC_KEY_SIZE_2048,
- certificate->signature,
- AVB_RSA2048_NUM_BYTES,
- certificate_hash,
- AVB_SHA256_DIGEST_SIZE,
- algorithm_data->padding,
- algorithm_data->padding_len)) {
- avb_error("Invalid PSK certificate signature.\n");
+
+ sha256_str("com.google.android.things.vboot", expected_usage);
+ if (!verify_certificate(
+ certificate, authority, minimum_version, expected_usage)) {
+ avb_error("Invalid PSK certificate.\n");
return false;
}
sha256(product_id, AVB_ATX_PRODUCT_ID_SIZE, expected_subject);
@@ -152,17 +151,6 @@
avb_error("Product ID mismatch.\n");
return false;
}
- sha256_str("com.google.android.things.vboot", expected_usage);
- if (0 != avb_safe_memcmp(certificate->signed_data.usage,
- expected_usage,
- AVB_SHA256_DIGEST_SIZE)) {
- avb_error("Invalid PSK certificate usage.\n");
- return false;
- }
- if (certificate->signed_data.key_version < minimum_version) {
- avb_error("PSK rollback detected.\n");
- return false;
- }
return true;
}
@@ -179,7 +167,8 @@
AvbAtxPublicKeyMetadata metadata;
uint64_t minimum_version;
- /* Be pessimistic so we can exit early without having to remember to clear. */
+ /* Be pessimistic so we can exit early without having to remember to clear.
+ */
*out_is_trusted = false;
/* Read and verify permanent attributes. */
@@ -240,30 +229,18 @@
}
/* Verify the PSK is the same key that verified vbmeta. */
- if (public_key_length != AVB_ATX_PUBLIC_KEY_SIZE_2048) {
+ if (public_key_length != AVB_ATX_PUBLIC_KEY_SIZE) {
avb_error("Public key length mismatch.\n");
return AVB_IO_RESULT_OK;
}
if (0 != avb_safe_memcmp(
metadata.product_signing_key_certificate.signed_data.public_key,
public_key_data,
- AVB_ATX_PUBLIC_KEY_SIZE_2048)) {
+ AVB_ATX_PUBLIC_KEY_SIZE)) {
avb_error("Public key mismatch.\n");
return AVB_IO_RESULT_OK;
}
- /* Verify the GSK minimum version. */
- result = ops->read_rollback_index(
- ops, AVB_ATX_GSK_VERSION_LOCATION, &minimum_version);
- if (result != AVB_IO_RESULT_OK) {
- avb_error("Failed to read GSK minimum version.\n");
- return result;
- }
- if (metadata.google_signing_key_version < minimum_version) {
- avb_error("Google signing key rollback detected.\n");
- return AVB_IO_RESULT_OK;
- }
-
*out_is_trusted = true;
return AVB_IO_RESULT_OK;
}
diff --git a/libavb_atx/avb_atx_validate.h b/libavb_atx/avb_atx_validate.h
index 07c154e..41faac1 100644
--- a/libavb_atx/avb_atx_validate.h
+++ b/libavb_atx/avb_atx_validate.h
@@ -40,7 +40,6 @@
/* Rollback index locations for Android Things key versions. */
#define AVB_ATX_PIK_VERSION_LOCATION 0x1000
#define AVB_ATX_PSK_VERSION_LOCATION 0x1001
-#define AVB_ATX_GSK_VERSION_LOCATION 0x1002
/* An implementation of validate_vbmeta_public_key for Android Things. See
* libavb/avb_ops.h for details on validate_vbmeta_public_key in general. This
@@ -59,10 +58,6 @@
* - Product Signing Key (PSK): This key is a rotated authority for a specific
* Android Things product. It is certified by a
* PIK and must match |public_key_data|.
- * - Google Signing Key (GSK): This key is a rotated authority for system and
- * boot partitions built by Google. The key is
- * already verified as part of vbmeta so only the
- * key version needs verification here.
* - Product ID: This value is provided in permanent attributes and is unique
* to a specific Android Things product. This value must match
* the subject of the PSK certificate.
diff --git a/test/avb_atx_generate_test_data b/test/avb_atx_generate_test_data
new file mode 100755
index 0000000..019c845
--- /dev/null
+++ b/test/avb_atx_generate_test_data
@@ -0,0 +1,81 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation
+# files (the "Software"), to deal in the Software without
+# restriction, including without limitation the rights to use, copy,
+# modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+
+# This shell-script generates ATX test data in the working directory.
+# An avbtool executable is assumed to reside in the parent directory
+# of this script.
+#
+# The *atx* test data in the test/data/ directory was generated with
+# this script. It is consistent with the expectations of avbtool unit
+# tests and ATX unit tests. This script exists as a record of how the
+# data was generated and as a convenience if it ever needs to be
+# generated again.
+#
+# Typical usage:
+#
+# $ cd test/data; ../avb_atx_generate_test_data
+
+set -e
+
+TMP_FILE=$(mktemp /tmp/atx_generator.XXXXXXXXXX)
+trap "rm -f '${TMP_FILE}'" EXIT
+
+AVBTOOL=$(dirname "$0")/../avbtool
+
+echo AVBTOOL = ${AVBTOOL}
+
+# Get a random product ID.
+head -c 16 /dev/urandom > atx_product_id.bin
+
+# Generate key pairs.
+openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM \
+ -out testkey_atx_prk.pem
+openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM \
+ -out testkey_atx_pik.pem
+openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM \
+ -out testkey_atx_psk.pem
+
+# Construct permanent attributes.
+${AVBTOOL} make_atx_permanent_attributes --output=atx_permanent_attributes.bin \
+ --product_id=atx_product_id.bin --root_authority_key=testkey_atx_prk.pem
+
+# Construct a PIK certificate.
+echo -n "fake PIK subject" > ${TMP_FILE}
+${AVBTOOL} make_atx_certificate --output=atx_pik_certificate.bin \
+ --subject=${TMP_FILE} --subject_key=testkey_atx_pik.pem \
+ --subject_is_intermediate_authority --subject_key_version 42 \
+ --authority_key=testkey_atx_prk.pem
+
+# Construct a PSK certificate.
+${AVBTOOL} make_atx_certificate --output=atx_psk_certificate.bin \
+ --subject=atx_product_id.bin --subject_key=testkey_atx_psk.pem \
+ --subject_key_version 42 --authority_key=testkey_atx_pik.pem
+
+# Construct metadata.
+${AVBTOOL} make_atx_metadata --output=atx_metadata.bin \
+ --intermediate_key_certificate=atx_pik_certificate.bin \
+ --product_key_certificate=atx_psk_certificate.bin
+
diff --git a/test/avb_atx_validate_unittest.cc b/test/avb_atx_validate_unittest.cc
index 6efa856..1436b0b 100644
--- a/test/avb_atx_validate_unittest.cc
+++ b/test/avb_atx_validate_unittest.cc
@@ -42,8 +42,8 @@
const char kMetadataPath[] = "test/data/atx_metadata.bin";
const char kPermanentAttributesPath[] =
"test/data/atx_permanent_attributes.bin";
-const char kPRKPrivateKeyPath[] = "test/data/testkey_rsa4096.pem";
-const char kPIKPrivateKeyPath[] = "test/data/testkey_rsa2048.pem";
+const char kPRKPrivateKeyPath[] = "test/data/testkey_atx_prk.pem";
+const char kPIKPrivateKeyPath[] = "test/data/testkey_atx_pik.pem";
class ScopedRSA {
public:
@@ -59,24 +59,16 @@
}
}
- // PKCS #1 v1.5 signature using SHA512 if |rsa_| is 4096 bits, SHA256
- // otherwise. Returns true on success.
+ // PKCS #1 v1.5 signature using SHA512. Returns true on success.
bool Sign(const void* data_to_sign, size_t length, uint8_t signature[]) {
- bool use_sha512 = (RSA_size(rsa_) == AVB_RSA4096_NUM_BYTES);
uint8_t digest[AVB_SHA512_DIGEST_SIZE];
- unsigned int digest_size =
- use_sha512 ? AVB_SHA512_DIGEST_SIZE : AVB_SHA256_DIGEST_SIZE;
const unsigned char* data_to_sign_buf =
reinterpret_cast<const unsigned char*>(data_to_sign);
- if (use_sha512) {
- SHA512(data_to_sign_buf, length, digest);
- } else {
- SHA256(data_to_sign_buf, length, digest);
- }
+ SHA512(data_to_sign_buf, length, digest);
unsigned int signature_length = 0;
- return (1 == RSA_sign(use_sha512 ? NID_sha512 : NID_sha256,
+ return (1 == RSA_sign(NID_sha512,
digest,
- digest_size,
+ AVB_SHA512_DIGEST_SIZE,
signature,
&signature_length,
rsa_));
@@ -98,9 +90,8 @@
ReadDefaultData();
ops_.set_delegate(this);
ops_.set_permanent_attributes(attributes_);
- ops_.set_stored_rollback_indexes({{AVB_ATX_PIK_VERSION_LOCATION, 0},
- {AVB_ATX_PSK_VERSION_LOCATION, 0},
- {AVB_ATX_GSK_VERSION_LOCATION, 0}});
+ ops_.set_stored_rollback_indexes(
+ {{AVB_ATX_PIK_VERSION_LOCATION, 0}, {AVB_ATX_PSK_VERSION_LOCATION, 0}});
}
// FakeAvbOpsDelegate methods.
@@ -137,9 +128,7 @@
if ((fail_read_pik_rollback_index_ &&
rollback_index_slot == AVB_ATX_PIK_VERSION_LOCATION) ||
(fail_read_psk_rollback_index_ &&
- rollback_index_slot == AVB_ATX_PSK_VERSION_LOCATION) ||
- (fail_read_gsk_rollback_index_ &&
- rollback_index_slot == AVB_ATX_GSK_VERSION_LOCATION)) {
+ rollback_index_slot == AVB_ATX_PSK_VERSION_LOCATION)) {
return AVB_IO_RESULT_ERROR_IO;
}
return ops_.read_rollback_index(
@@ -188,7 +177,7 @@
return avb_atx_validate_vbmeta_public_key(
ops_.avb_ops(),
metadata_.product_signing_key_certificate.signed_data.public_key,
- AVB_ATX_PUBLIC_KEY_SIZE_2048,
+ AVB_ATX_PUBLIC_KEY_SIZE,
reinterpret_cast<const uint8_t*>(&metadata_),
sizeof(metadata_),
is_trusted);
@@ -208,7 +197,7 @@
void SignPSKCertificate() {
memset(metadata_.product_signing_key_certificate.signature,
0,
- AVB_RSA2048_NUM_BYTES);
+ AVB_RSA4096_NUM_BYTES);
ScopedRSA key(kPIKPrivateKeyPath);
ASSERT_TRUE(key.Sign(&metadata_.product_signing_key_certificate.signed_data,
sizeof(AvbAtxCertificateSignedData),
@@ -222,7 +211,6 @@
bool fail_read_permanent_attributes_hash_{false};
bool fail_read_pik_rollback_index_{false};
bool fail_read_psk_rollback_index_{false};
- bool fail_read_gsk_rollback_index_{false};
private:
void ReadDefaultData() {
@@ -251,7 +239,7 @@
std::string old_psk_sig(
reinterpret_cast<char*>(
metadata_.product_signing_key_certificate.signature),
- AVB_RSA2048_NUM_BYTES);
+ AVB_RSA4096_NUM_BYTES);
SignPIKCertificate();
SignPSKCertificate();
std::string new_pik_sig(
@@ -261,7 +249,7 @@
std::string new_psk_sig(
reinterpret_cast<char*>(
metadata_.product_signing_key_certificate.signature),
- AVB_RSA2048_NUM_BYTES);
+ AVB_RSA4096_NUM_BYTES);
EXPECT_EQ(old_pik_sig, new_pik_sig);
EXPECT_EQ(old_psk_sig, new_psk_sig);
bool is_trusted = false;
@@ -307,7 +295,7 @@
return avb_atx_validate_vbmeta_public_key(
ops_.avb_ops(),
metadata_.product_signing_key_certificate.signed_data.public_key,
- AVB_ATX_PUBLIC_KEY_SIZE_2048,
+ AVB_ATX_PUBLIC_KEY_SIZE,
reinterpret_cast<const uint8_t*>(&metadata_),
GetParam(),
is_trusted);
@@ -407,8 +395,7 @@
{{AVB_ATX_PIK_VERSION_LOCATION,
metadata_.product_intermediate_key_certificate.signed_data.key_version +
1},
- {AVB_ATX_PSK_VERSION_LOCATION, 0},
- {AVB_ATX_GSK_VERSION_LOCATION, 0}});
+ {AVB_ATX_PSK_VERSION_LOCATION, 0}});
bool is_trusted = true;
EXPECT_EQ(AVB_IO_RESULT_OK, Validate(&is_trusted));
EXPECT_FALSE(is_trusted);
@@ -484,8 +471,8 @@
ops_.set_stored_rollback_indexes(
{{AVB_ATX_PIK_VERSION_LOCATION, 0},
{AVB_ATX_PSK_VERSION_LOCATION,
- metadata_.product_signing_key_certificate.signed_data.key_version + 1},
- {AVB_ATX_GSK_VERSION_LOCATION, 0}});
+ metadata_.product_signing_key_certificate.signed_data.key_version +
+ 1}});
bool is_trusted = true;
EXPECT_EQ(AVB_IO_RESULT_OK, Validate(&is_trusted));
EXPECT_FALSE(is_trusted);
@@ -518,43 +505,25 @@
AvbAtxValidateTestWithPublicKeyLength,
::testing::Values(0,
1,
- AVB_ATX_PUBLIC_KEY_SIZE_2048 - 1,
- AVB_ATX_PUBLIC_KEY_SIZE_2048 + 1,
- AVB_ATX_PUBLIC_KEY_SIZE_4096,
+ AVB_ATX_PUBLIC_KEY_SIZE - 1,
+ AVB_ATX_PUBLIC_KEY_SIZE + 1,
+ AVB_ATX_PUBLIC_KEY_SIZE - 512,
-1));
TEST_F(AvbAtxValidateTest, PSKMismatch) {
- uint8_t bad_key[AVB_ATX_PUBLIC_KEY_SIZE_2048] = {};
+ uint8_t bad_key[AVB_ATX_PUBLIC_KEY_SIZE] = {};
bool is_trusted = true;
EXPECT_EQ(AVB_IO_RESULT_OK,
avb_atx_validate_vbmeta_public_key(
ops_.avb_ops(),
bad_key,
- AVB_ATX_PUBLIC_KEY_SIZE_2048,
+ AVB_ATX_PUBLIC_KEY_SIZE,
reinterpret_cast<const uint8_t*>(&metadata_),
sizeof(metadata_),
&is_trusted));
EXPECT_FALSE(is_trusted);
}
-TEST_F(AvbAtxValidateTest, FailReadGSKRollbackIndex) {
- fail_read_gsk_rollback_index_ = true;
- bool is_trusted = true;
- EXPECT_EQ(AVB_IO_RESULT_ERROR_IO, Validate(&is_trusted));
- EXPECT_FALSE(is_trusted);
-}
-
-TEST_F(AvbAtxValidateTest, GSKRollback) {
- ops_.set_stored_rollback_indexes(
- {{AVB_ATX_PIK_VERSION_LOCATION, 0},
- {AVB_ATX_PSK_VERSION_LOCATION, 0},
- {AVB_ATX_GSK_VERSION_LOCATION,
- metadata_.google_signing_key_version + 1}});
- bool is_trusted = true;
- EXPECT_EQ(AVB_IO_RESULT_OK, Validate(&is_trusted));
- EXPECT_FALSE(is_trusted);
-}
-
// A fixture for testing avb_slot_verify() with ATX.
class AvbAtxSlotVerifyTest : public BaseAvbToolTest, public FakeAvbOpsDelegate {
public:
@@ -571,8 +540,7 @@
{2, 0},
{3, 0},
{AVB_ATX_PIK_VERSION_LOCATION, 0},
- {AVB_ATX_PSK_VERSION_LOCATION, 0},
- {AVB_ATX_GSK_VERSION_LOCATION, 0}});
+ {AVB_ATX_PSK_VERSION_LOCATION, 0}});
ops_.set_stored_is_device_unlocked(false);
}
@@ -665,13 +633,13 @@
std::string metadata_option = "--public_key_metadata=";
metadata_option += kMetadataPath;
GenerateVBMetaImage("vbmeta_a.img",
- "SHA256_RSA2048",
+ "SHA512_RSA4096",
0,
- base::FilePath("test/data/testkey_rsa2048.pem"),
+ base::FilePath("test/data/testkey_atx_psk.pem"),
metadata_option);
ops_.set_expected_public_key(
- PublicKeyAVB(base::FilePath("test/data/testkey_rsa2048.pem")));
+ PublicKeyAVB(base::FilePath("test/data/testkey_atx_psk.pem")));
AvbSlotVerifyData* slot_data = NULL;
const char* requested_partitions[] = {"boot", NULL};
diff --git a/test/avbtool_unittest.cc b/test/avbtool_unittest.cc
index 924dfbb..be53d55 100644
--- a/test/avbtool_unittest.cc
+++ b/test/avbtool_unittest.cc
@@ -1424,21 +1424,24 @@
}
TEST_F(AvbToolTest, MakeAtxPikCertificate) {
+ base::FilePath subject_path = testdir_.Append("tmp_subject");
+ ASSERT_TRUE(base::WriteFile(subject_path, "fake PIK subject", 16));
base::FilePath pubkey_path = testdir_.Append("tmp_pubkey.pem");
EXPECT_COMMAND(
0,
- "openssl pkey -pubout -in test/data/testkey_rsa2048.pem -out %s",
+ "openssl pkey -pubout -in test/data/testkey_atx_pik.pem -out %s",
pubkey_path.value().c_str());
base::FilePath output_path = testdir_.Append("tmp_certificate.bin");
EXPECT_COMMAND(0,
"./avbtool make_atx_certificate"
- " --subject test/data/small_blob.bin"
+ " --subject %s"
" --subject_key %s"
" --subject_key_version 42"
" --subject_is_intermediate_authority"
- " --authority_key test/data/testkey_rsa4096.pem"
+ " --authority_key test/data/testkey_atx_prk.pem"
" --output %s",
+ subject_path.value().c_str(),
pubkey_path.value().c_str(),
output_path.value().c_str());
@@ -1451,7 +1454,7 @@
base::FilePath pubkey_path = testdir_.Append("tmp_pubkey.pem");
EXPECT_COMMAND(
0,
- "openssl pkey -pubout -in test/data/testkey_rsa2048.pem -out %s",
+ "openssl pkey -pubout -in test/data/testkey_atx_psk.pem -out %s",
pubkey_path.value().c_str());
base::FilePath output_path = testdir_.Append("tmp_certificate.bin");
@@ -1460,7 +1463,7 @@
" --subject test/data/atx_product_id.bin"
" --subject_key %s"
" --subject_key_version 42"
- " --authority_key test/data/testkey_rsa2048.pem"
+ " --authority_key test/data/testkey_atx_pik.pem"
" --output %s",
pubkey_path.value().c_str(),
output_path.value().c_str());
@@ -1474,7 +1477,7 @@
base::FilePath pubkey_path = testdir_.Append("tmp_pubkey.pem");
EXPECT_COMMAND(
0,
- "openssl pkey -pubout -in test/data/testkey_rsa4096.pem -out %s",
+ "openssl pkey -pubout -in test/data/testkey_atx_prk.pem -out %s",
pubkey_path.value().c_str());
base::FilePath output_path = testdir_.Append("tmp_attributes.bin");
@@ -1499,7 +1502,6 @@
"./avbtool make_atx_metadata"
" --intermediate_key_certificate test/data/atx_pik_certificate.bin"
" --product_key_certificate test/data/atx_psk_certificate.bin"
- " --google_key_version 42"
" --output %s",
output_path.value().c_str());
diff --git a/test/data/atx_metadata.bin b/test/data/atx_metadata.bin
index 3b53bbc..0915664 100644
--- a/test/data/atx_metadata.bin
+++ b/test/data/atx_metadata.bin
Binary files differ
diff --git a/test/data/atx_permanent_attributes.bin b/test/data/atx_permanent_attributes.bin
index be63c86..fe53db2 100644
--- a/test/data/atx_permanent_attributes.bin
+++ b/test/data/atx_permanent_attributes.bin
Binary files differ
diff --git a/test/data/atx_pik_certificate.bin b/test/data/atx_pik_certificate.bin
index d0b4a7b..6e01e6c 100644
--- a/test/data/atx_pik_certificate.bin
+++ b/test/data/atx_pik_certificate.bin
Binary files differ
diff --git a/test/data/atx_product_id.bin b/test/data/atx_product_id.bin
index d5648fa..59f5893 100644
--- a/test/data/atx_product_id.bin
+++ b/test/data/atx_product_id.bin
@@ -1 +1 @@
-tùAö®÷ ìí=±]
\ No newline at end of file
+?8˾VÌ=л5
§Ò
\ No newline at end of file
diff --git a/test/data/atx_psk_certificate.bin b/test/data/atx_psk_certificate.bin
index abec3ce..6710ae4 100644
--- a/test/data/atx_psk_certificate.bin
+++ b/test/data/atx_psk_certificate.bin
Binary files differ
diff --git a/test/data/testkey_atx_pik.pem b/test/data/testkey_atx_pik.pem
new file mode 100644
index 0000000..5f34cb9
--- /dev/null
+++ b/test/data/testkey_atx_pik.pem
@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQDoTSKaxoiUJhZ9
+Wb4fT59s9ZZsyIjewnmAhS/+gPTeOY7L+cpo+iDSeTAOOAw++ZcQZiGeQLwLO6DK
+Aq2ujqi8ycwMx49aZsMcAKwyIMl2SoMZOgducS27z+Mzv4+FBoLV52eYVr+Idiat
+b2ogciK8TEviBF7URyQa6wsdGrY4HwG7kEBL1NiZngkl24U+HNHlzn9L3/C6pg39
+g5KIQyNNjIFzTqGnr1Q0lCNLCR/UP8NtQ0koUL26MeDJk8qANTkI3ihpw27CFmWy
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++/elaBvvebPrl6un9drAO2qVXMinjCXJTiWaJdlNZkTeYCeGqXHt4xeZJUGeWdVa
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+WM8yjCL8U3+kfP4L6uIgmAuVcmbrX68=
+-----END PRIVATE KEY-----
diff --git a/test/data/testkey_atx_prk.pem b/test/data/testkey_atx_prk.pem
new file mode 100644
index 0000000..17a8cce
--- /dev/null
+++ b/test/data/testkey_atx_prk.pem
@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQDDKUwjFhCsMsE8
+1cWrodnnEz9+0eZhXaOhYNpXS7LmD+FQv0f/Ca/NSS2CM3ah/ihfiWKzwPERrxUJ
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+MSKHJYIcbmEACtr9tALUhZo5SkjMLrQ=
+-----END PRIVATE KEY-----
diff --git a/test/data/testkey_atx_psk.pem b/test/data/testkey_atx_psk.pem
new file mode 100644
index 0000000..71bfebf
--- /dev/null
+++ b/test/data/testkey_atx_psk.pem
@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQCy2mHwjC3ylCFF
+dzNkZPKOiZzrUiPawe8OFcTJOySMv0/P4fILDiZuhC1VLwMHquR6kQhvyP9ffeHl
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+-----END PRIVATE KEY-----