Merge "Test validity of device-unique attestation chain" am: 14bb840731 (49f82b25) · Commits · e / os / android_hardware_interfaces

keymaster/4.1/vts/functional/DeviceUniqueAttestationTest.cpp

+30 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		#define LOG_TAG "keymaster_hidl_hal_test"
		#include <cutils/log.h>
		#include <vector>

		#include "Keymaster4_1HidlTest.h"

		@@ -178,6 +179,33 @@ void check_attestation_record(AttestationRecord attestation, const HidlBuf& chal
		<< DIFFERENCE(expected_hw_enforced, attestation.hardware_enforced);
		}

		X509_Ptr parse_cert_blob(const std::vector<uint8_t>& blob) {
		const uint8_t* p = blob.data();
		return X509_Ptr(d2i_X509(nullptr /* allocate new */, &p, blob.size()));
		}

		bool check_certificate_chain_signatures(const hidl_vec<hidl_vec<uint8_t>>& cert_chain) {
		// TODO: Check that root is self-signed once b/187803288 is resolved.
		for (size_t i = 0; i < cert_chain.size() - 1; ++i) {
		X509_Ptr key_cert(parse_cert_blob(cert_chain[i]));
		X509_Ptr signing_cert(parse_cert_blob(cert_chain[i + 1]));

		if (!key_cert.get() \|\| !signing_cert.get()) {
		return false;
		}

		EVP_PKEY_Ptr signing_pubkey(X509_get_pubkey(signing_cert.get()));
		if (!signing_pubkey.get()) {
		return false;
		}

		if (!X509_verify(key_cert.get(), signing_pubkey.get())) {
		return false;
		}
		}
		return true;
		}

		} // namespace

		using std::string;
		@@ -243,6 +271,7 @@ TEST_P(DeviceUniqueAttestationTest, Rsa) {

		EXPECT_EQ(ErrorCode::OK, result);
		EXPECT_EQ(2U, cert_chain.size());
		EXPECT_TRUE(check_certificate_chain_signatures(cert_chain));
		if (dumpAttestations) {
		for (auto cert_ : cert_chain) dumpContent(bin2hex(cert_));
		}
		@@ -289,6 +318,7 @@ TEST_P(DeviceUniqueAttestationTest, Ecdsa) {

		EXPECT_EQ(ErrorCode::OK, result);
		EXPECT_EQ(2U, cert_chain.size());
		EXPECT_TRUE(check_certificate_chain_signatures(cert_chain));
		if (dumpAttestations) {
		for (auto cert_ : cert_chain) dumpContent(bin2hex(cert_));
		}