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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 "secerr.h"
#include "nss_scoped_ptrs.h"
#include "gtest/gtest.h"
#include "util.h"
namespace nss_test {
class Pkcs11SeedCbcTest : public ::testing::Test {
protected:
enum class Action { Encrypt, Decrypt };
SECStatus EncryptDecryptSeed(Action action, unsigned int input_size,
unsigned int output_size) {
// Generate a random key.
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
ScopedPK11SymKey sym_key(
PK11_KeyGen(slot.get(), kMech, nullptr, 16, nullptr));
EXPECT_TRUE(!!sym_key);
std::vector<uint8_t> data(input_size);
std::vector<uint8_t> init_vector(16);
std::vector<uint8_t> output(output_size);
SECItem params = {siBuffer, init_vector.data(),
(unsigned int)init_vector.size()};
// Try to encrypt/decrypt.
unsigned int output_len = 0;
if (action == Action::Encrypt) {
return PK11_Encrypt(sym_key.get(), kMech, ¶ms, output.data(),
&output_len, output_size, data.data(), data.size());
} else {
return PK11_Decrypt(sym_key.get(), kMech, ¶ms, output.data(),
&output_len, output_size, data.data(), data.size());
}
}
const CK_MECHANISM_TYPE kMech = CKM_SEED_CBC;
};
// The intention here is to test the arguments of these functions
// The resulted content is already tested in EncryptDeriveTests.
// SEED_CBC needs an IV of 16 bytes.
// The input data size must be multiple of 16.
// If not, some padding should be added.
// The output size must be at least the size of input data.
TEST_F(Pkcs11SeedCbcTest, SeedCBC_ValidArgs) {
EXPECT_EQ(SECSuccess, EncryptDecryptSeed(Action::Encrypt, 16, 16));
EXPECT_EQ(SECSuccess, EncryptDecryptSeed(Action::Decrypt, 16, 16));
// No problem if maxLen is bigger than input data.
EXPECT_EQ(SECSuccess, EncryptDecryptSeed(Action::Encrypt, 16, 32));
EXPECT_EQ(SECSuccess, EncryptDecryptSeed(Action::Decrypt, 16, 32));
}
TEST_F(Pkcs11SeedCbcTest, SeedCBC_InvalidArgs) {
// maxLen lower than input data.
EXPECT_EQ(SECFailure, EncryptDecryptSeed(Action::Encrypt, 16, 10));
EXPECT_EQ(SECFailure, EncryptDecryptSeed(Action::Decrypt, 16, 10));
// input data not multiple of SEED_BLOCK_SIZE (16)
EXPECT_EQ(SECFailure, EncryptDecryptSeed(Action::Encrypt, 17, 32));
EXPECT_EQ(SECFailure, EncryptDecryptSeed(Action::Decrypt, 17, 32));
}
} // namespace nss_test
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