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/*
* Copyright 2024 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Detached unit tests for the cryptobox */
#ifndef RSPAMD_RSPAMD_CXX_UNIT_CRYPTOBOX_HXX
#define RSPAMD_RSPAMD_CXX_UNIT_CRYPTOBOX_HXX
#include "libcryptobox/cryptobox.h"
#include <string>
#include <string_view>
#include <vector>
#include <iosfwd>
namespace std// NOLINT(cert-dcl58-cpp)
{
template<typename T>
ostream &operator<<(ostream &stream, const vector<T> &in)
{
stream << "[";
for (size_t i = 0; i < in.size(); ++i) {
if (i != 0) { stream << ", "; }
stream << in[i];
}
stream << "]";
return stream;
}
}// namespace std
TEST_SUITE("rspamd_cryptobox")
{
TEST_CASE("rspamd_cryptobox_keypair")
{
rspamd_sk_t sk;
rspamd_pk_t pk;
rspamd_cryptobox_keypair(pk, sk);
}
TEST_CASE("rspamd_cryptobox_keypair_sig")
{
rspamd_sig_sk_t sk;
rspamd_sig_pk_t pk;
rspamd_cryptobox_keypair_sig(pk, sk);
}
TEST_CASE("rspamd_cryptobox_hash")
{
rspamd_cryptobox_hash_state_t p = {0};
std::string key{"key"};
rspamd_cryptobox_hash_init(&p, reinterpret_cast<const unsigned char *>(key.data()), key.size());
std::string data{"key"};
rspamd_cryptobox_hash_update(&p, reinterpret_cast<const unsigned char *>(data.data()), data.size());
unsigned char out1[rspamd_cryptobox_HASHBYTES];
rspamd_cryptobox_hash_final(&p, out1);
unsigned char out2[rspamd_cryptobox_HASHBYTES];
rspamd_cryptobox_hash(out2,
reinterpret_cast<const unsigned char *>(data.data()), data.size(),
reinterpret_cast<const unsigned char *>(key.data()), key.size());
CHECK(memcmp(out1, out2, sizeof(out1)) == 0);
}
TEST_CASE("rspamd_cryptobox_fast_hash")
{
rspamd_cryptobox_fast_hash_state_s *st = rspamd_cryptobox_fast_hash_new();
uint64_t seed = 10;
rspamd_cryptobox_fast_hash_init(st, seed);
std::string data{"key"};
rspamd_cryptobox_fast_hash_update(st,
reinterpret_cast<const unsigned char *>(data.data()),
data.size());
uint64_t out1 = rspamd_cryptobox_fast_hash_final(st);
CHECK(out1 == 358126267837521635);
uint64_t out2 = rspamd_cryptobox_fast_hash(reinterpret_cast<const unsigned char *>(data.data()),
data.size(), seed);
CHECK(out1 == out2);
rspamd_cryptobox_fast_hash_free(st);
}
TEST_CASE("rspamd_cryptobox_pbkdf")
{
std::string pass{"passpa"};
std::string salt{"salt"};
uint8_t key1[256] = {0};
gsize key_len1 = sizeof(key1);
uint8_t key2[256] = {0};
gsize key_len2 = sizeof(key2);
unsigned int complexity = 10;
enum rspamd_cryptobox_pbkdf_type type = RSPAMD_CRYPTOBOX_PBKDF2;
CHECK(rspamd_cryptobox_pbkdf(pass.data(), pass.size(),
reinterpret_cast<const unsigned char *>(salt.data()), salt.size(),
key1, key_len1, complexity, type));
CHECK(rspamd_cryptobox_pbkdf(pass.data(), pass.size(),
reinterpret_cast<const unsigned char *>(salt.data()), salt.size(),
key2, key_len2, complexity, type));
CHECK(memcmp(key1, key2, key_len1) == 0);
type = RSPAMD_CRYPTOBOX_CATENA;
CHECK(rspamd_cryptobox_pbkdf(pass.data(), pass.size(),
reinterpret_cast<const unsigned char *>(salt.data()), salt.size(),
key1, key_len1, complexity, type));
CHECK(rspamd_cryptobox_pbkdf(pass.data(), pass.size(),
reinterpret_cast<const unsigned char *>(salt.data()), salt.size(),
key2, key_len2, complexity, type));
CHECK(memcmp(key1, key2, key_len1) == 0);
}
TEST_CASE("rspamd_cryptobox_encrypt_inplace_25519")
{
unsigned char data[256];
gsize len = sizeof(data);
rspamd_nonce_t nonce;
rspamd_pk_t pk;
rspamd_sk_t sk;
rspamd_mac_t sig;
ottery_rand_bytes(nonce, sizeof(nonce));
rspamd_cryptobox_keypair(pk, sk);
memset(sig, 0, sizeof(sig));
rspamd_cryptobox_encrypt_inplace(data, len, nonce, pk, sk, sig);
CHECK(rspamd_cryptobox_decrypt_inplace(data, len, nonce, pk, sk, sig));
}
TEST_CASE("rspamd_cryptobox_sign_25519")
{
rspamd_sig_sk_t sk;
rspamd_sig_pk_t pk;
unsigned char sig[256];
unsigned long long siglen;
std::string m{"data to be signed"};
rspamd_cryptobox_keypair_sig(pk, sk);
rspamd_cryptobox_sign(sig, &siglen,
reinterpret_cast<const unsigned char *>(m.data()), m.size(), sk);
bool check_result = rspamd_cryptobox_verify(sig, siglen,
reinterpret_cast<const unsigned char *>(m.data()), m.size(),
pk);
CHECK(check_result == true);
}
TEST_CASE("rspamd_keypair_encryption")
{
auto *kp = rspamd_keypair_new(RSPAMD_KEYPAIR_KEX);
std::string data{"data to be encrypted"};
unsigned char *out;
gsize outlen;
GError *err = nullptr;
auto ret = rspamd_keypair_encrypt(kp, reinterpret_cast<const unsigned char *>(data.data()), data.size(),
&out, &outlen, &err);
CHECK(ret);
CHECK(err == nullptr);
unsigned char *decrypted;
gsize decrypted_len;
ret = rspamd_keypair_decrypt(kp, out, outlen, &decrypted, &decrypted_len, &err);
CHECK(ret);
CHECK(err == nullptr);
CHECK(decrypted_len == data.size());
CHECK(data == std::string_view{reinterpret_cast<const char *>(decrypted), decrypted_len});
g_free(out);
g_free(decrypted);
}
TEST_CASE("rspamd x25519 scalarmult")
{
rspamd_sk_t sk;
// Use a fixed zero secret key
memset(sk, 0, sizeof(sk));
// Use a well known public key
const char *pk = "k4nz984k36xmcynm1hr9kdbn6jhcxf4ggbrb1quay7f88rpm9kay";
gsize outlen;
auto *pk_decoded = rspamd_decode_base32(pk, strlen(pk), &outlen, RSPAMD_BASE32_DEFAULT);
unsigned char expected[32] = {95, 76, 225, 188, 0, 26, 146, 94, 70, 249,
90, 189, 35, 51, 1, 42, 9, 37, 94, 254, 204, 55, 198, 91, 180, 90,
46, 217, 140, 226, 211, 90};
const auto expected_arr = std::vector(std::begin(expected), std::end(expected));
CHECK(outlen == 32);
unsigned char out[32];
/* Clamp integer */
sk[0] &= 248;
sk[31] &= 127;
sk[31] |= 64;
CHECK(crypto_scalarmult(out, sk, pk_decoded) != -1);
auto out_arr = std::vector(std::begin(out), std::end(out));
CHECK(out_arr == expected_arr);
}
TEST_CASE("rspamd x25519 ecdh")
{
rspamd_sk_t sk;
// Use a fixed zero secret key
memset(sk, 0, sizeof(sk));
// Use a well known public key
const char *pk = "k4nz984k36xmcynm1hr9kdbn6jhcxf4ggbrb1quay7f88rpm9kay";
gsize outlen;
auto *pk_decoded = rspamd_decode_base32(pk, strlen(pk), &outlen, RSPAMD_BASE32_DEFAULT);
unsigned char expected[32] = {61, 109, 220, 195, 100, 174, 127, 237, 148,
122, 154, 61, 165, 83, 93, 105, 127, 166, 153, 112, 103, 224, 2, 200,
136, 243, 73, 51, 8, 163, 150, 7};
const auto expected_arr = std::vector(std::begin(expected), std::end(expected));
CHECK(outlen == 32);
unsigned char out[32];
rspamd_cryptobox_nm(out, pk_decoded, sk);
auto out_arr = std::vector(std::begin(out), std::end(out));
CHECK(out_arr == expected_arr);
}
}
#endif
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