Chiebot-Mirror
/
boringssl
8
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Mirror of BoringSSL (grpc依赖) https://boringssl.googlesource.com/boringssl
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
866 Commits
61 Branches
23 Tags
511 MiB
 
 
 
 
 
 
Tag: Branch: Tree: 1f51cfc7d7
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '1f51cfc7d7'
${ noResults }
boringssl/crypto/trust_token/trust_token_test.cc

884 lines
34 KiB
Raw Blame History

/* Copyright (c) 2020, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <algorithm>
#include <limits>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
#include <gtest/gtest.h>
#include <openssl/bytestring.h>
#include <openssl/curve25519.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
#include <openssl/trust_token.h>
#include "../ec_extra/internal.h"
#include "../fipsmodule/ec/internal.h"
#include "../internal.h"
#include "../test/test_util.h"
#include "internal.h"
BSSL_NAMESPACE_BEGIN
namespace {
TEST(TrustTokenTest, KeyGenExp1) {
uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
size_t priv_key_len, pub_key_len;
ASSERT_TRUE(TRUST_TOKEN_generate_key(
TRUST_TOKEN_experiment_v1(), priv_key, &priv_key_len,
TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
ASSERT_EQ(292u, priv_key_len);
ASSERT_EQ(301u, pub_key_len);
}
TEST(TrustTokenTest, KeyGenExp2VOPRF) {
uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
size_t priv_key_len, pub_key_len;
ASSERT_TRUE(TRUST_TOKEN_generate_key(
TRUST_TOKEN_experiment_v2_voprf(), priv_key, &priv_key_len,
TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
ASSERT_EQ(52u, priv_key_len);
ASSERT_EQ(101u, pub_key_len);
}
TEST(TrustTokenTest, KeyGenExp2PMB) {
uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
size_t priv_key_len, pub_key_len;
ASSERT_TRUE(TRUST_TOKEN_generate_key(
TRUST_TOKEN_experiment_v2_pmb(), priv_key, &priv_key_len,
TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
ASSERT_EQ(292u, priv_key_len);
ASSERT_EQ(295u, pub_key_len);
}
// Test that H in |TRUST_TOKEN_experiment_v1| was computed correctly.
TEST(TrustTokenTest, HExp1) {
const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
ASSERT_TRUE(group);
const uint8_t kHGen[] = "generator";
const uint8_t kHLabel[] = "PMBTokens Experiment V1 HashH";
bssl::UniquePtr<EC_POINT> expected_h(EC_POINT_new(group));
ASSERT_TRUE(expected_h);
ASSERT_TRUE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
group, &expected_h->raw, kHLabel, sizeof(kHLabel), kHGen, sizeof(kHGen)));
uint8_t expected_bytes[1 + 2 * EC_MAX_BYTES];
size_t expected_len =
EC_POINT_point2oct(group, expected_h.get(), POINT_CONVERSION_UNCOMPRESSED,
expected_bytes, sizeof(expected_bytes), nullptr);
uint8_t h[97];
ASSERT_TRUE(pmbtoken_exp1_get_h_for_testing(h));
EXPECT_EQ(Bytes(h), Bytes(expected_bytes, expected_len));
}
// Test that H in |TRUST_TOKEN_experiment_v2_pmb| was computed correctly.
TEST(TrustTokenTest, HExp2) {
const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
ASSERT_TRUE(group);
const uint8_t kHGen[] = "generator";
const uint8_t kHLabel[] = "PMBTokens Experiment V2 HashH";
bssl::UniquePtr<EC_POINT> expected_h(EC_POINT_new(group));
ASSERT_TRUE(expected_h);
ASSERT_TRUE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
group, &expected_h->raw, kHLabel, sizeof(kHLabel), kHGen, sizeof(kHGen)));
uint8_t expected_bytes[1 + 2 * EC_MAX_BYTES];
size_t expected_len =
EC_POINT_point2oct(group, expected_h.get(), POINT_CONVERSION_UNCOMPRESSED,
expected_bytes, sizeof(expected_bytes), nullptr);
uint8_t h[97];
ASSERT_TRUE(pmbtoken_exp2_get_h_for_testing(h));
EXPECT_EQ(Bytes(h), Bytes(expected_bytes, expected_len));
}
static std::vector<const TRUST_TOKEN_METHOD *> AllMethods() {
return {
TRUST_TOKEN_experiment_v1(),
TRUST_TOKEN_experiment_v2_voprf(),
TRUST_TOKEN_experiment_v2_pmb()
};
}
class TrustTokenProtocolTestBase : public ::testing::Test {
public:
explicit TrustTokenProtocolTestBase(const TRUST_TOKEN_METHOD *method_arg)
: method_(method_arg) {}
// KeyID returns the key ID associated with key index |i|.
static uint32_t KeyID(size_t i) {
// Use a different value from the indices to that we do not mix them up.
return 7 + i;
}
const TRUST_TOKEN_METHOD *method() { return method_; }
protected:
void SetupContexts() {
client.reset(TRUST_TOKEN_CLIENT_new(method(), client_max_batchsize));
ASSERT_TRUE(client);
issuer.reset(TRUST_TOKEN_ISSUER_new(method(), issuer_max_batchsize));
ASSERT_TRUE(issuer);
for (size_t i = 0; i < method()->max_keys; i++) {
uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
size_t priv_key_len, pub_key_len, key_index;
ASSERT_TRUE(TRUST_TOKEN_generate_key(
method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, KeyID(i)));
ASSERT_TRUE(TRUST_TOKEN_CLIENT_add_key(client.get(), &key_index, pub_key,
pub_key_len));
ASSERT_EQ(i, key_index);
ASSERT_TRUE(
TRUST_TOKEN_ISSUER_add_key(issuer.get(), priv_key, priv_key_len));
}
uint8_t public_key[32], private_key[64];
ED25519_keypair(public_key, private_key);
bssl::UniquePtr<EVP_PKEY> priv(EVP_PKEY_new_raw_private_key(
EVP_PKEY_ED25519, nullptr, private_key, 32));
ASSERT_TRUE(priv);
bssl::UniquePtr<EVP_PKEY> pub(
EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, nullptr, public_key, 32));
ASSERT_TRUE(pub);
TRUST_TOKEN_CLIENT_set_srr_key(client.get(), pub.get());
TRUST_TOKEN_ISSUER_set_srr_key(issuer.get(), priv.get());
RAND_bytes(metadata_key, sizeof(metadata_key));
ASSERT_TRUE(TRUST_TOKEN_ISSUER_set_metadata_key(issuer.get(), metadata_key,
sizeof(metadata_key)));
}
const TRUST_TOKEN_METHOD *method_;
uint16_t client_max_batchsize = 10;
uint16_t issuer_max_batchsize = 10;
bssl::UniquePtr<TRUST_TOKEN_CLIENT> client;
bssl::UniquePtr<TRUST_TOKEN_ISSUER> issuer;
uint8_t metadata_key[32];
};
class TrustTokenProtocolTest
: public TrustTokenProtocolTestBase,
public testing::WithParamInterface<const TRUST_TOKEN_METHOD *> {
public:
TrustTokenProtocolTest() : TrustTokenProtocolTestBase(GetParam()) {}
};
INSTANTIATE_TEST_SUITE_P(TrustTokenAllProtocolTest, TrustTokenProtocolTest,
testing::ValuesIn(AllMethods()));
TEST_P(TrustTokenProtocolTest, InvalidToken) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
size_t key_index;
size_t tokens_issued;
ASSERT_TRUE(
TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg, &msg_len, 1));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/KeyID(0), /*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
for (TRUST_TOKEN *token : tokens.get()) {
// Corrupt the token.
token->data[0] ^= 0x42;
uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
client.get(), &redeem_msg, &msg_len, token, NULL, 0, 0));
bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
TRUST_TOKEN *rtoken;
uint8_t *client_data;
size_t client_data_len;
uint64_t redemption_time;
ASSERT_FALSE(TRUST_TOKEN_ISSUER_redeem(
issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
&client_data_len, &redemption_time, redeem_msg, msg_len, 600));
bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
}
}
TEST_P(TrustTokenProtocolTest, TruncatedIssuanceRequest) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
msg_len = 10;
size_t tokens_issued;
ASSERT_FALSE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/KeyID(0), /*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
}
TEST_P(TrustTokenProtocolTest, TruncatedIssuanceResponse) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/KeyID(0), /*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
resp_len = 10;
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_FALSE(tokens);
}
TEST_P(TrustTokenProtocolTest, ExtraDataIssuanceResponse) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *request = NULL, *response = NULL;
size_t request_len, response_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &request,
&request_len, 10));
bssl::UniquePtr<uint8_t> free_request(request);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(issuer.get(), &response, &response_len,
&tokens_issued, request, request_len,
/*public_metadata=*/KeyID(0),
/*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_response(response);
std::vector<uint8_t> response2(response, response + response_len);
response2.push_back(0);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index,
response2.data(), response2.size()));
ASSERT_FALSE(tokens);
}
TEST_P(TrustTokenProtocolTest, TruncatedRedemptionRequest) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/KeyID(0), /*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
for (TRUST_TOKEN *token : tokens.get()) {
const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
client.get(), &redeem_msg, &msg_len, token, kClientData,
sizeof(kClientData) - 1, kRedemptionTime));
bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
msg_len = 10;
TRUST_TOKEN *rtoken;
uint8_t *client_data;
size_t client_data_len;
uint64_t redemption_time;
ASSERT_FALSE(TRUST_TOKEN_ISSUER_redeem(
issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
&client_data_len, &redemption_time, redeem_msg, msg_len, 600));
}
}
TEST_P(TrustTokenProtocolTest, TruncatedRedemptionResponse) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/KeyID(0), /*private_metadata=*/0,
/*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
for (TRUST_TOKEN *token : tokens.get()) {
const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
uint64_t kRedemptionTime = 0;
uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
client.get(), &redeem_msg, &msg_len, token, kClientData,
sizeof(kClientData) - 1, kRedemptionTime));
bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
TRUST_TOKEN *rtoken;
uint8_t *client_data;
size_t client_data_len;
uint64_t redemption_time;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem(
issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
&client_data_len, &redemption_time, redeem_msg, msg_len, 600));
bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
bssl::UniquePtr<uint8_t> free_client_data(client_data);
bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
ASSERT_EQ(redemption_time, kRedemptionTime);
ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
Bytes(client_data, client_data_len));
resp_len = 10;
// If the protocol doesn't use SRRs, TRUST_TOKEN_CLIENT_finish_redemtpion
// leaves all SRR validation to the caller.
uint8_t *srr = NULL, *sig = NULL;
size_t srr_len, sig_len;
bool expect_failure = !method()->has_srr;
ASSERT_EQ(expect_failure, TRUST_TOKEN_CLIENT_finish_redemption(
client.get(), &srr, &srr_len, &sig, &sig_len,
redeem_resp, resp_len));
bssl::UniquePtr<uint8_t> free_srr(srr);
bssl::UniquePtr<uint8_t> free_sig(sig);
}
}
TEST_P(TrustTokenProtocolTest, IssuedWithBadKeyID) {
client.reset(TRUST_TOKEN_CLIENT_new(method(), client_max_batchsize));
ASSERT_TRUE(client);
issuer.reset(TRUST_TOKEN_ISSUER_new(method(), issuer_max_batchsize));
ASSERT_TRUE(issuer);
// We configure the client and the issuer with different key IDs and test
// that the client notices.
const uint32_t kClientKeyID = 0;
const uint32_t kIssuerKeyID = 42;
uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
size_t priv_key_len, pub_key_len, key_index;
ASSERT_TRUE(TRUST_TOKEN_generate_key(
method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, kClientKeyID));
ASSERT_TRUE(TRUST_TOKEN_CLIENT_add_key(client.get(), &key_index, pub_key,
pub_key_len));
ASSERT_EQ(0UL, key_index);
ASSERT_TRUE(TRUST_TOKEN_generate_key(
method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, kIssuerKeyID));
ASSERT_TRUE(TRUST_TOKEN_ISSUER_add_key(issuer.get(), priv_key, priv_key_len));
uint8_t public_key[32], private_key[64];
ED25519_keypair(public_key, private_key);
bssl::UniquePtr<EVP_PKEY> priv(
EVP_PKEY_new_raw_private_key(EVP_PKEY_ED25519, nullptr, private_key, 32));
ASSERT_TRUE(priv);
bssl::UniquePtr<EVP_PKEY> pub(
EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, nullptr, public_key, 32));
ASSERT_TRUE(pub);
TRUST_TOKEN_CLIENT_set_srr_key(client.get(), pub.get());
TRUST_TOKEN_ISSUER_set_srr_key(issuer.get(), priv.get());
RAND_bytes(metadata_key, sizeof(metadata_key));
ASSERT_TRUE(TRUST_TOKEN_ISSUER_set_metadata_key(issuer.get(), metadata_key,
sizeof(metadata_key)));
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/42, /*private_metadata=*/0, /*max_issuance=*/10));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_FALSE(tokens);
}
class TrustTokenMetadataTest
: public TrustTokenProtocolTestBase,
public testing::WithParamInterface<
std::tuple<const TRUST_TOKEN_METHOD *, int, bool>> {
public:
TrustTokenMetadataTest()
: TrustTokenProtocolTestBase(std::get<0>(GetParam())) {}
int public_metadata() { return std::get<1>(GetParam()); }
bool private_metadata() { return std::get<2>(GetParam()); }
};
TEST_P(TrustTokenMetadataTest, SetAndGetMetadata) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
bool result = TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
public_metadata(), private_metadata(), /*max_issuance=*/1);
if (!method()->has_private_metadata && private_metadata()) {
ASSERT_FALSE(result);
return;
}
ASSERT_TRUE(result);
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
for (TRUST_TOKEN *token : tokens.get()) {
const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
const uint8_t kExpectedSRRV1[] =
"\xa4\x68\x6d\x65\x74\x61\x64\x61\x74\x61\xa2\x66\x70\x75\x62\x6c\x69"
"\x63\x00\x67\x70\x72\x69\x76\x61\x74\x65\x00\x6a\x74\x6f\x6b\x65\x6e"
"\x2d\x68\x61\x73\x68\x58\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x6b\x63\x6c\x69\x65\x6e\x74\x2d\x64\x61\x74\x61"
"\x70\x54\x45\x53\x54\x20\x43\x4c\x49\x45\x4e\x54\x20\x44\x41\x54\x41"
"\x70\x65\x78\x70\x69\x72\x79\x2d\x74\x69\x6d\x65\x73\x74\x61\x6d\x70"
"\x1a\x00\xcc\x15\x7a";
const uint8_t kExpectedSRRV2[] =
"\xa4\x68\x6d\x65\x74\x61\x64\x61\x74\x61\xa2\x66\x70\x75\x62\x6c\x69"
"\x63\x00\x67\x70\x72\x69\x76\x61\x74\x65\x00\x6a\x74\x6f\x6b\x65\x6e"
"\x2d\x68\x61\x73\x68\x58\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x6b\x63\x6c\x69\x65\x6e\x74\x2d\x64\x61\x74\x61"
"\x70\x54\x45\x53\x54\x20\x43\x4c\x49\x45\x4e\x54\x20\x44\x41\x54\x41"
"\x70\x65\x78\x70\x69\x72\x79\x2d\x74\x69\x6d\x65\x73\x74\x61\x6d\x70"
"\x00";
const uint8_t *expected_srr = kExpectedSRRV1;
size_t expected_srr_len = sizeof(kExpectedSRRV1) - 1;
if (!method()->has_srr) {
expected_srr = kExpectedSRRV2;
expected_srr_len = sizeof(kExpectedSRRV2) - 1;
}
uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
client.get(), &redeem_msg, &msg_len, token, kClientData,
sizeof(kClientData) - 1, kRedemptionTime));
bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
TRUST_TOKEN *rtoken;
uint8_t *client_data;
size_t client_data_len;
uint64_t redemption_time;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem(
issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
&client_data_len, &redemption_time, redeem_msg, msg_len, 600));
bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
bssl::UniquePtr<uint8_t> free_client_data(client_data);
bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
ASSERT_EQ(redemption_time, kRedemptionTime);
ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
Bytes(client_data, client_data_len));
uint8_t *srr = NULL, *sig = NULL;
size_t srr_len, sig_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_finish_redemption(
client.get(), &srr, &srr_len, &sig, &sig_len, redeem_resp, resp_len));
bssl::UniquePtr<uint8_t> free_srr(srr);
bssl::UniquePtr<uint8_t> free_sig(sig);
if (!method()->has_srr) {
size_t b64_len;
ASSERT_TRUE(EVP_EncodedLength(&b64_len, expected_srr_len));
b64_len -= 1;
const char kSRRHeader[] = "body=:";
ASSERT_LT(sizeof(kSRRHeader) - 1 + b64_len, srr_len);
ASSERT_EQ(Bytes(kSRRHeader, sizeof(kSRRHeader) - 1),
Bytes(srr, sizeof(kSRRHeader) - 1));
uint8_t *decoded_srr =
(uint8_t *)OPENSSL_malloc(expected_srr_len + 2);
ASSERT_TRUE(decoded_srr);
ASSERT_LE(
int(expected_srr_len),
EVP_DecodeBlock(decoded_srr, srr + sizeof(kSRRHeader) - 1, b64_len));
srr = decoded_srr;
srr_len = expected_srr_len;
free_srr.reset(srr);
}
const uint8_t kTokenHashDSTLabel[] = "TrustTokenV0 TokenHash";
uint8_t token_hash[SHA256_DIGEST_LENGTH];
SHA256_CTX sha_ctx;
SHA256_Init(&sha_ctx);
SHA256_Update(&sha_ctx, kTokenHashDSTLabel, sizeof(kTokenHashDSTLabel));
SHA256_Update(&sha_ctx, token->data, token->len);
SHA256_Final(token_hash, &sha_ctx);
// Check the token hash is in the SRR.
ASSERT_EQ(Bytes(token_hash), Bytes(srr + 41, sizeof(token_hash)));
uint8_t decode_private_metadata;
ASSERT_TRUE(TRUST_TOKEN_decode_private_metadata(
method(), &decode_private_metadata, metadata_key,
sizeof(metadata_key), token_hash, sizeof(token_hash), srr[27]));
ASSERT_EQ(srr[18], public_metadata());
ASSERT_EQ(decode_private_metadata, private_metadata());
// Clear out the metadata bits.
srr[18] = 0;
srr[27] = 0;
// Clear out the token hash.
OPENSSL_memset(srr + 41, 0, sizeof(token_hash));
ASSERT_EQ(Bytes(expected_srr, expected_srr_len),
Bytes(srr, srr_len));
}
}
TEST_P(TrustTokenMetadataTest, RawSetAndGetMetadata) {
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
bool result = TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
public_metadata(), private_metadata(), /*max_issuance=*/1);
if (!method()->has_private_metadata && private_metadata()) {
ASSERT_FALSE(result);
return;
}
ASSERT_TRUE(result);
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
EXPECT_EQ(1u, sk_TRUST_TOKEN_num(tokens.get()));
for (TRUST_TOKEN *token : tokens.get()) {
const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
uint8_t *redeem_msg = NULL;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
client.get(), &redeem_msg, &msg_len, token, kClientData,
sizeof(kClientData) - 1, kRedemptionTime));
bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
uint32_t public_value;
uint8_t private_value;
TRUST_TOKEN *rtoken;
uint8_t *client_data;
size_t client_data_len;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem_raw(
issuer.get(), &public_value, &private_value, &rtoken,
&client_data, &client_data_len, redeem_msg, msg_len));
bssl::UniquePtr<uint8_t> free_client_data(client_data);
bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
Bytes(client_data, client_data_len));
ASSERT_EQ(public_value, static_cast<uint32_t>(public_metadata()));
ASSERT_EQ(private_value, private_metadata());
}
}
TEST_P(TrustTokenMetadataTest, TooManyRequests) {
if (!method()->has_private_metadata && private_metadata()) {
return;
}
issuer_max_batchsize = 1;
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
public_metadata(), private_metadata(), /*max_issuance=*/1));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
ASSERT_EQ(tokens_issued, issuer_max_batchsize);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
ASSERT_TRUE(tokens);
ASSERT_EQ(sk_TRUST_TOKEN_num(tokens.get()), 1UL);
}
TEST_P(TrustTokenMetadataTest, TruncatedProof) {
if (!method()->has_private_metadata && private_metadata()) {
return;
}
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
public_metadata(), private_metadata(), /*max_issuance=*/1));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
CBS real_response;
CBS_init(&real_response, issue_resp, resp_len);
uint16_t count;
uint32_t parsed_public_metadata;
bssl::ScopedCBB bad_response;
ASSERT_TRUE(CBB_init(bad_response.get(), 0));
ASSERT_TRUE(CBS_get_u16(&real_response, &count));
ASSERT_TRUE(CBB_add_u16(bad_response.get(), count));
ASSERT_TRUE(CBS_get_u32(&real_response, &parsed_public_metadata));
ASSERT_TRUE(CBB_add_u32(bad_response.get(), parsed_public_metadata));
const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
size_t token_length =
TRUST_TOKEN_NONCE_SIZE + 2 * (1 + 2 * BN_num_bytes(&group->field));
if (method() == TRUST_TOKEN_experiment_v1()) {
token_length += 4;
}
if (method() == TRUST_TOKEN_experiment_v2_voprf()) {
token_length = 1 + 2 * BN_num_bytes(&group->field);
}
for (size_t i = 0; i < count; i++) {
ASSERT_TRUE(CBB_add_bytes(bad_response.get(), CBS_data(&real_response),
token_length));
ASSERT_TRUE(CBS_skip(&real_response, token_length));
}
CBS tmp;
ASSERT_TRUE(CBS_get_u16_length_prefixed(&real_response, &tmp));
CBB dleq;
ASSERT_TRUE(CBB_add_u16_length_prefixed(bad_response.get(), &dleq));
ASSERT_TRUE(CBB_add_bytes(&dleq, CBS_data(&tmp), CBS_len(&tmp) - 2));
ASSERT_TRUE(CBB_flush(bad_response.get()));
uint8_t *bad_buf;
size_t bad_len;
ASSERT_TRUE(CBB_finish(bad_response.get(), &bad_buf, &bad_len));
bssl::UniquePtr<uint8_t> free_bad(bad_buf);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, bad_buf,
bad_len));
ASSERT_FALSE(tokens);
}
TEST_P(TrustTokenMetadataTest, ExcessDataProof) {
if (!method()->has_private_metadata && private_metadata()) {
return;
}
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
public_metadata(), private_metadata(), /*max_issuance=*/1));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
CBS real_response;
CBS_init(&real_response, issue_resp, resp_len);
uint16_t count;
uint32_t parsed_public_metadata;
bssl::ScopedCBB bad_response;
ASSERT_TRUE(CBB_init(bad_response.get(), 0));
ASSERT_TRUE(CBS_get_u16(&real_response, &count));
ASSERT_TRUE(CBB_add_u16(bad_response.get(), count));
ASSERT_TRUE(CBS_get_u32(&real_response, &parsed_public_metadata));
ASSERT_TRUE(CBB_add_u32(bad_response.get(), parsed_public_metadata));
const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
size_t token_length =
TRUST_TOKEN_NONCE_SIZE + 2 * (1 + 2 * BN_num_bytes(&group->field));
if (method() == TRUST_TOKEN_experiment_v1()) {
token_length += 4;
}
if (method() == TRUST_TOKEN_experiment_v2_voprf()) {
token_length = 1 + 2 * BN_num_bytes(&group->field);
}
for (size_t i = 0; i < count; i++) {
ASSERT_TRUE(CBB_add_bytes(bad_response.get(), CBS_data(&real_response),
token_length));
ASSERT_TRUE(CBS_skip(&real_response, token_length));
}
CBS tmp;
ASSERT_TRUE(CBS_get_u16_length_prefixed(&real_response, &tmp));
CBB dleq;
ASSERT_TRUE(CBB_add_u16_length_prefixed(bad_response.get(), &dleq));
ASSERT_TRUE(CBB_add_bytes(&dleq, CBS_data(&tmp), CBS_len(&tmp)));
ASSERT_TRUE(CBB_add_u16(&dleq, 42));
ASSERT_TRUE(CBB_flush(bad_response.get()));
uint8_t *bad_buf;
size_t bad_len;
ASSERT_TRUE(CBB_finish(bad_response.get(), &bad_buf, &bad_len));
bssl::UniquePtr<uint8_t> free_bad(bad_buf);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, bad_buf,
bad_len));
ASSERT_FALSE(tokens);
}
INSTANTIATE_TEST_SUITE_P(
TrustTokenAllMetadataTest, TrustTokenMetadataTest,
testing::Combine(testing::ValuesIn(AllMethods()),
testing::Values(TrustTokenProtocolTest::KeyID(0),
TrustTokenProtocolTest::KeyID(1),
TrustTokenProtocolTest::KeyID(2)),
testing::Bool()));
class TrustTokenBadKeyTest
: public TrustTokenProtocolTestBase,
public testing::WithParamInterface<
std::tuple<const TRUST_TOKEN_METHOD *, bool, int>> {
public:
TrustTokenBadKeyTest()
: TrustTokenProtocolTestBase(std::get<0>(GetParam())) {}
bool private_metadata() { return std::get<1>(GetParam()); }
int corrupted_key() { return std::get<2>(GetParam()); }
};
TEST_P(TrustTokenBadKeyTest, BadKey) {
// For versions without private metadata, only corruptions of 'xs' (the 4th
// entry in |scalars| below) result in a bad key, as the other scalars are
// unused internally.
if (!method()->has_private_metadata &&
(private_metadata() || corrupted_key() != 4)) {
return;
}
ASSERT_NO_FATAL_FAILURE(SetupContexts());
uint8_t *issue_msg = NULL, *issue_resp = NULL;
size_t msg_len, resp_len;
ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
&msg_len, 10));
bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
struct trust_token_issuer_key_st *key = &issuer->keys[0];
EC_SCALAR *scalars[] = {&key->key.x0, &key->key.y0, &key->key.x1,
&key->key.y1, &key->key.xs, &key->key.ys};
// Corrupt private key scalar.
scalars[corrupted_key()]->words[0] ^= 42;
size_t tokens_issued;
ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
/*public_metadata=*/7, private_metadata(), /*max_issuance=*/1));
bssl::UniquePtr<uint8_t> free_msg(issue_resp);
size_t key_index;
bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
resp_len));
// If the unused private key is corrupted, then the DLEQ proof should succeed.
if ((corrupted_key() / 2 == 0 && private_metadata() == true) ||
(corrupted_key() / 2 == 1 && private_metadata() == false)) {
ASSERT_TRUE(tokens);
} else {
ASSERT_FALSE(tokens);
}
}
INSTANTIATE_TEST_SUITE_P(TrustTokenAllBadKeyTest, TrustTokenBadKeyTest,
testing::Combine(testing::ValuesIn(AllMethods()),
testing::Bool(),
testing::Values(0, 1, 2, 3, 4, 5)));
} // namespace
BSSL_NAMESPACE_END