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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <memory>
#include "nss.h"
#include "pk11pub.h"
#include "testvectors/kw-vectors.h"
#include "gtest/gtest.h"
#include "nss_scoped_ptrs.h"
#include "json_reader.h"
extern std::string g_source_dir;
namespace nss_test {
class Pkcs11AESKeyWrapKwpTest
: public ::testing::TestWithParam<keywrap_vector> {
protected:
CK_MECHANISM_TYPE mechanism = CKM_AES_KEY_WRAP_KWP;
void WrapUnwrap(unsigned char* kek_data, unsigned int kek_len,
unsigned char* key_data, unsigned int key_data_len,
unsigned char* expected_ciphertext,
unsigned int expected_ciphertext_len,
std::map<Action, Result> tests, uint32_t test_id) {
std::vector<unsigned char> wrapped_key(PR_MAX(1U, expected_ciphertext_len));
std::vector<unsigned char> unwrapped_key(PR_MAX(1U, key_data_len));
std::vector<unsigned char> zeros(PR_MAX(1U, expected_ciphertext_len), 0);
unsigned int wrapped_key_len = 0;
unsigned int unwrapped_key_len = 0;
SECStatus rv;
std::stringstream s;
s << "Test with original ID #" << test_id << " failed." << std::endl;
std::string msg = s.str();
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
ASSERT_NE(nullptr, slot) << msg;
// Import encryption key.
SECItem kek_item = {siBuffer, kek_data, kek_len};
ScopedPK11SymKey kek(PK11_ImportSymKeyWithFlags(
slot.get(), mechanism, PK11_OriginUnwrap, CKA_ENCRYPT, &kek_item,
CKF_DECRYPT, PR_FALSE, nullptr));
EXPECT_TRUE(!!kek) << msg;
// Wrap key
Action test = WRAP;
if (tests.count(test)) {
rv = PK11_Encrypt(kek.get(), mechanism, nullptr /* param */,
wrapped_key.data(), &wrapped_key_len,
wrapped_key.size(), key_data, key_data_len);
ASSERT_EQ(rv, tests[test].expect_rv) << msg;
// If we failed, check that output was not produced.
if (rv == SECFailure) {
EXPECT_TRUE(wrapped_key_len == 0);
EXPECT_TRUE(!memcmp(wrapped_key.data(), zeros.data(), wrapped_key_len));
}
if (tests[test].output_match) {
EXPECT_EQ(expected_ciphertext_len, wrapped_key_len) << msg;
EXPECT_TRUE(!memcmp(expected_ciphertext, wrapped_key.data(),
expected_ciphertext_len))
<< msg;
} else {
// If we produced output, verify that it doesn't match the vector
if (wrapped_key_len) {
EXPECT_FALSE(wrapped_key_len == expected_ciphertext_len &&
!memcmp(wrapped_key.data(), expected_ciphertext,
expected_ciphertext_len))
<< msg;
}
}
}
// Unwrap key
test = UNWRAP;
if (tests.count(test)) {
rv = PK11_Decrypt(kek.get(), mechanism, nullptr /* param */,
unwrapped_key.data(), &unwrapped_key_len,
unwrapped_key.size(), expected_ciphertext,
expected_ciphertext_len);
ASSERT_EQ(rv, tests[test].expect_rv) << msg;
// If we failed, check that output was not produced.
if (rv == SECFailure) {
EXPECT_TRUE(unwrapped_key_len == 0);
EXPECT_TRUE(
!memcmp(unwrapped_key.data(), zeros.data(), unwrapped_key_len));
}
if (tests[test].output_match) {
EXPECT_EQ(unwrapped_key_len, key_data_len) << msg;
EXPECT_TRUE(!memcmp(key_data, unwrapped_key.data(), key_data_len))
<< msg;
} else {
// If we produced output, verify that it doesn't match the vector
if (unwrapped_key_len) {
EXPECT_FALSE(
unwrapped_key_len == expected_ciphertext_len &&
!memcmp(unwrapped_key.data(), key_data, unwrapped_key_len))
<< msg;
}
}
}
}
};
TEST_F(Pkcs11AESKeyWrapKwpTest, TestVectors) {
std::string testvectors =
::g_source_dir + "/../common/testvectors/kwp-vectors.json";
JsonReader r(testvectors);
r.NextItem();
ASSERT_EQ("numberOfTests", r.ReadLabel());
uint64_t expected_count = r.ReadInt();
uint64_t count = 0;
r.NextItem();
ASSERT_EQ("tests", r.ReadLabel());
while (r.NextItemArray()) {
count++;
keywrap_vector testvector;
uint8_t seen = 0;
while (r.NextItem()) {
std::string n = r.ReadLabel();
if (n == "tcId") {
seen |= 1;
testvector.test_id = r.ReadInt();
} else if (n == "key") {
seen |= 2;
testvector.key = r.ReadHex();
} else if (n == "msg") {
seen |= 4;
testvector.msg = r.ReadHex();
} else if (n == "ct") {
seen |= 8;
testvector.ct = r.ReadHex();
} else if (n == "wrapRv") {
seen |= 16;
testvector.tests[Action::WRAP].expect_rv = r.ReadSECStatus();
} else if (n == "wrapMatch") {
seen |= 32;
testvector.tests[Action::WRAP].output_match = r.ReadBool();
} else if (n == "unwrapRv") {
seen |= 64;
testvector.tests[Action::UNWRAP].expect_rv = r.ReadSECStatus();
} else if (n == "unwrapMatch") {
seen |= 128;
testvector.tests[Action::UNWRAP].output_match = r.ReadBool();
}
}
EXPECT_EQ(seen, 255);
WrapUnwrap(testvector.key.data(), testvector.key.size(),
testvector.msg.data(), testvector.msg.size(),
testvector.ct.data(), testvector.ct.size(), testvector.tests,
testvector.test_id);
}
EXPECT_EQ(count, expected_count);
}
} // namespace nss_test
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