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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* 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.
*/
#include <gtest/gtest.h>
#include <hicn/transport/auth/crypto_hash.h>
#include <hicn/transport/auth/signer.h>
#include <hicn/transport/auth/verifier.h>
#include <hicn/transport/core/content_object.h>
#include <openssl/rand.h>
using BN_ptr = std::unique_ptr<BIGNUM, decltype(&::BN_free)>;
using RSA_ptr = std::unique_ptr<RSA, decltype(&::RSA_free)>;
using EC_KEY_ptr = std::unique_ptr<EC_KEY, decltype(&::EC_KEY_free)>;
using DSA_ptr = std::unique_ptr<DSA, decltype(&::DSA_free)>;
namespace transport {
namespace auth {
namespace {
class AuthTest : public ::testing::Test {
protected:
const std::string PASSPHRASE = "hunter2";
AuthTest() = default;
~AuthTest() {}
void SetUp() override {}
void TearDown() override {}
};
} // namespace
TEST_F(AuthTest, VoidVerifier) {
// Create a content object
core::ContentObject packet(HF_INET6_TCP_AH);
// Fill it with bogus data
uint8_t buffer[256] = {0};
packet.appendPayload(buffer, 256);
// Verify that VoidVerifier validates the packet
std::shared_ptr<Verifier> verifier = std::make_shared<VoidVerifier>();
EXPECT_EQ(verifier->verifyPacket(&packet), true);
EXPECT_EQ(verifier->verifyPackets(&packet), VerificationPolicy::ACCEPT);
}
TEST_F(AuthTest, AsymmetricRSA) {
// Create the RSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
std::shared_ptr<EVP_PKEY> pubKey(EVP_PKEY_new(), EVP_PKEY_free);
RSA_ptr rsa(RSA_new(), ::RSA_free);
BN_ptr pub_exp(BN_new(), ::BN_free);
BN_set_word(pub_exp.get(), RSA_F4);
if (1 != RSA_generate_key_ex(rsa.get(), 2048u, pub_exp.get(), NULL))
throw errors::RuntimeException("can't generate the key");
RSA_ptr rsa_pub(RSAPublicKey_dup(rsa.get()), ::RSA_free);
RSA_ptr rsa_priv(RSAPrivateKey_dup(rsa.get()), ::RSA_free);
if (1 != EVP_PKEY_set1_RSA(pubKey.get(), rsa_pub.get()))
throw errors::RuntimeException("can't generate the key");
if (1 != EVP_PKEY_set1_RSA(privateKey.get(), rsa_priv.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::RSA_SHA256, privateKey, pubKey);
// Create a content object
core::ContentObject packet(HF_INET6_TCP_AH, signer->getSignatureSize());
// Fill it with bogus data
uint8_t buffer[256] = {0};
packet.appendPayload(buffer, 256);
// Sign the packet
signer->signPacket(&packet);
// Create the RSA verifier
std::shared_ptr<Verifier> verifier =
std::make_shared<AsymmetricVerifier>(pubKey);
EXPECT_EQ(packet.getFormat(), HF_INET6_TCP_AH);
EXPECT_EQ(signer->getHashType(), CryptoHashType::SHA256);
EXPECT_EQ(signer->getSuite(), CryptoSuite::RSA_SHA256);
EXPECT_EQ(signer->getSignatureSize(), 256u);
EXPECT_EQ(verifier->verifyPackets(&packet), VerificationPolicy::ACCEPT);
}
TEST_F(AuthTest, AsymmetricBufferRSA) {
// Create the RSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
std::shared_ptr<EVP_PKEY> pubKey(EVP_PKEY_new(), EVP_PKEY_free);
RSA_ptr rsa(RSA_new(), ::RSA_free);
BN_ptr pub_exp(BN_new(), ::BN_free);
BN_set_word(pub_exp.get(), RSA_F4);
if (1 != RSA_generate_key_ex(rsa.get(), 2048u, pub_exp.get(), NULL))
throw errors::RuntimeException("can't generate the key");
RSA_ptr rsa_pub(RSAPublicKey_dup(rsa.get()), ::RSA_free);
RSA_ptr rsa_priv(RSAPrivateKey_dup(rsa.get()), ::RSA_free);
if (1 != EVP_PKEY_set1_RSA(pubKey.get(), rsa_pub.get()))
throw errors::RuntimeException("can't generate the key");
if (1 != EVP_PKEY_set1_RSA(privateKey.get(), rsa_priv.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::RSA_SHA256, privateKey, pubKey);
std::string payload = "bonjour";
std::vector<uint8_t> buffer(payload.begin(), payload.end());
signer->signBuffer(buffer);
std::vector<uint8_t> sig = signer->getSignature();
std::shared_ptr<AsymmetricVerifier> verif =
std::make_shared<AsymmetricVerifier>(pubKey);
bool res = verif->verifyBuffer(
buffer, std::vector<uint8_t>(sig.data(), sig.data() + sig.size()),
CryptoHashType::SHA256);
EXPECT_EQ(res, true);
}
TEST_F(AuthTest, AsymmetricBufferDSA) {
// Create the DSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
DSA_ptr dsa(DSA_new(), ::DSA_free);
unsigned char buf[32];
if (RAND_bytes(buf, sizeof(buf)) != 1) {
throw errors::RuntimeException("can't generate the key");
}
if (DSA_generate_parameters_ex(dsa.get(), 1024u, buf, sizeof(buf), NULL, NULL,
NULL) != 1)
throw errors::RuntimeException("can't generate the key");
if (DSA_generate_key(dsa.get()) != 1)
throw errors::RuntimeException("can't generate the key");
if (EVP_PKEY_set1_DSA(privateKey.get(), dsa.get()) != 1)
throw errors::RuntimeException("can't generate the key");
if (1 != EVP_PKEY_set1_DSA(privateKey.get(), dsa.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<X509> cert(X509_new(), ::X509_free);
X509_set_pubkey(cert.get(), privateKey.get());
std::shared_ptr<EVP_PKEY> pubKey(X509_get_pubkey(cert.get()), EVP_PKEY_free);
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::DSA_SHA256, privateKey, pubKey);
std::string payload = "bonjour";
std::vector<uint8_t> buffer(payload.begin(), payload.end());
signer->signBuffer(buffer);
std::vector<uint8_t> sig = signer->getSignature();
std::shared_ptr<AsymmetricVerifier> verif =
std::make_shared<AsymmetricVerifier>(pubKey);
bool res = verif->verifyBuffer(
buffer, std::vector<uint8_t>(sig.data(), sig.data() + sig.size()),
CryptoHashType::SHA256);
EXPECT_EQ(res, true);
}
TEST_F(AuthTest, AsymmetricVerifierDSA) {
// Create the DSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
DSA_ptr dsa(DSA_new(), ::DSA_free);
unsigned char buf[32];
if (RAND_bytes(buf, sizeof(buf)) != 1) {
throw errors::RuntimeException("can't generate the key");
}
if (DSA_generate_parameters_ex(dsa.get(), 1024u, buf, sizeof(buf), NULL, NULL,
NULL) != 1)
throw errors::RuntimeException("can't generate the key");
if (DSA_generate_key(dsa.get()) != 1)
throw errors::RuntimeException("can't generate the key");
if (EVP_PKEY_set1_DSA(privateKey.get(), dsa.get()) != 1)
throw errors::RuntimeException("can't generate the key");
if (1 != EVP_PKEY_set1_DSA(privateKey.get(), dsa.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<X509> cert(X509_new(), ::X509_free);
X509_set_pubkey(cert.get(), privateKey.get());
std::shared_ptr<EVP_PKEY> pubKey(X509_get_pubkey(cert.get()), EVP_PKEY_free);
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::DSA_SHA256, privateKey, pubKey);
// Create a content object
core::ContentObject packet(HF_INET6_TCP_AH, signer->getSignatureSize());
// Fill it with bogus data
uint8_t buffer[256] = {0};
packet.appendPayload(buffer, 256);
// this test has to be done before the signature is compute
// EXPECT_EQ(signer->getSignatureSize(), 256u);
signer->signPacket(&packet);
std::shared_ptr<Verifier> verifier =
std::make_shared<AsymmetricVerifier>(cert);
EXPECT_EQ(packet.getFormat(), HF_INET6_TCP_AH);
EXPECT_EQ(signer->getHashType(), CryptoHashType::SHA256);
EXPECT_EQ(signer->getSuite(), CryptoSuite::DSA_SHA256);
EXPECT_EQ(verifier->verifyPackets(&packet), VerificationPolicy::ACCEPT);
}
TEST_F(AuthTest, AsymmetricBufferECDSA) {
// Create the ECDSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
std::shared_ptr<EVP_PKEY> pubKey(EVP_PKEY_new(), EVP_PKEY_free);
EC_KEY_ptr ec_priv(EC_KEY_new_by_curve_name(NID_secp256k1), ::EC_KEY_free);
EC_KEY_ptr ec_pub(EC_KEY_new(), ::EC_KEY_free);
EC_KEY_set_asn1_flag(ec_priv.get(), OPENSSL_EC_NAMED_CURVE);
if (EC_KEY_generate_key(ec_priv.get()) == 0)
throw errors::RuntimeException("can't generate the ecdsa key");
if (1 != EVP_PKEY_set1_EC_KEY(privateKey.get(), ec_priv.get()))
throw errors::RuntimeException("can't generate the key");
EC_KEY_set_group(ec_pub.get(), EC_KEY_get0_group(ec_priv.get()));
EC_KEY_set_public_key(ec_pub.get(), EC_KEY_get0_public_key(ec_priv.get()));
if (1 != EVP_PKEY_set1_EC_KEY(pubKey.get(), ec_pub.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::ECDSA_SHA256, privateKey, pubKey);
std::string payload = "bonjour";
std::vector<uint8_t> buffer(payload.begin(), payload.end());
signer->signBuffer(buffer);
std::vector<uint8_t> sig = signer->getSignature();
std::shared_ptr<AsymmetricVerifier> verif =
std::make_shared<AsymmetricVerifier>(pubKey);
bool res = verif->verifyBuffer(
buffer, std::vector<uint8_t>(sig.data(), sig.data() + sig.size()),
CryptoHashType::SHA256);
EXPECT_EQ(res, true);
} // namespace auth
TEST_F(AuthTest, AsymmetricVerifierECDSA) {
// Create the ECDSA keys
std::shared_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), EVP_PKEY_free);
std::shared_ptr<EVP_PKEY> pubKey(EVP_PKEY_new(), EVP_PKEY_free);
EC_KEY_ptr ec_priv(EC_KEY_new_by_curve_name(NID_secp256k1), ::EC_KEY_free);
EC_KEY_ptr ec_pub(EC_KEY_new(), ::EC_KEY_free);
EC_KEY_set_asn1_flag(ec_priv.get(), OPENSSL_EC_NAMED_CURVE);
if (EC_KEY_generate_key(ec_priv.get()) == 0)
throw errors::RuntimeException("can't generate the ecdsa key");
if (1 != EVP_PKEY_set1_EC_KEY(privateKey.get(), ec_priv.get()))
throw errors::RuntimeException("can't generate the key");
EC_KEY_set_group(ec_pub.get(), EC_KEY_get0_group(ec_priv.get()));
EC_KEY_set_public_key(ec_pub.get(), EC_KEY_get0_public_key(ec_priv.get()));
if (1 != EVP_PKEY_set1_EC_KEY(pubKey.get(), ec_pub.get()))
throw errors::RuntimeException("can't generate the key");
std::shared_ptr<AsymmetricSigner> signer = std::make_shared<AsymmetricSigner>(
CryptoSuite::ECDSA_SHA256, privateKey, pubKey);
std::shared_ptr<AsymmetricVerifier> verifier =
std::make_shared<AsymmetricVerifier>(pubKey);
for (int i = 0; i < 100; i++) {
core::ContentObject packet(HF_INET6_TCP_AH, signer->getSignatureSize());
// Fill it with bogus data
uint8_t buffer[256] = {0};
packet.appendPayload(buffer, 256);
signer->signPacket(&packet);
EXPECT_EQ(packet.getFormat(), HF_INET6_TCP_AH);
EXPECT_EQ(signer->getHashType(), CryptoHashType::SHA256);
EXPECT_EQ(signer->getSuite(), CryptoSuite::ECDSA_SHA256);
EXPECT_EQ(verifier->verifyPackets(&packet), VerificationPolicy::ACCEPT);
}
}
TEST_F(AuthTest, HMACbuffer) {
// Create the HMAC signer from a passphrase
std::shared_ptr<Signer> signer =
std::make_shared<SymmetricSigner>(CryptoSuite::HMAC_SHA256, PASSPHRASE);
// Create a content object
core::ContentObject packet(HF_INET6_TCP_AH, signer->getSignatureSize());
std::string payload = "bonjour";
std::vector<uint8_t> buffer(payload.begin(), payload.end());
signer->signBuffer(buffer);
std::vector<uint8_t> sig = signer->getSignature();
SymmetricVerifier hmac(PASSPHRASE);
bool res = hmac.verifyBuffer(
buffer, std::vector<uint8_t>(sig.data(), sig.data() + sig.size()),
CryptoHashType::SHA256);
EXPECT_EQ(res, true);
}
TEST_F(AuthTest, HMACVerifier) {
// Create the HMAC signer from a passphrase
std::shared_ptr<SymmetricSigner> signer =
std::make_shared<SymmetricSigner>(CryptoSuite::HMAC_SHA256, PASSPHRASE);
// Create a content object
core::ContentObject packet(HF_INET6_TCP_AH, signer->getSignatureSize());
// Fill it with bogus data
uint8_t buffer[256] = {0};
packet.appendPayload(buffer, 256);
// Sign the packet
signer->signPacket(&packet);
// Create the HMAC verifier
std::shared_ptr<Verifier> verifier =
std::make_shared<SymmetricVerifier>(PASSPHRASE);
EXPECT_EQ(packet.getFormat(), HF_INET6_TCP_AH);
EXPECT_EQ(signer->getHashType(), CryptoHashType::SHA256);
EXPECT_EQ(signer->getSuite(), CryptoSuite::HMAC_SHA256);
EXPECT_EQ(signer->getSignatureSize(), 32u);
EXPECT_EQ(verifier->verifyPackets(&packet), VerificationPolicy::ACCEPT);
}
} // namespace auth
} // namespace transport
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