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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,
#include <memory>
#include "nss.h"
#include "pk11pub.h"
#include "sechash.h"
#include "json_reader.h"
#include "databuffer.h"
#include "gtest/gtest.h"
#include "nss_scoped_ptrs.h"
#include "pk11_signature_test.h"
#include "pk11_rsapss_vectors.h"
#include "testvectors_base/test-structs.h"
namespace nss_test {
CK_MECHANISM_TYPE RsaPssMapCombo(SECOidTag hashOid) {
switch (hashOid) {
case SEC_OID_SHA1:
return CKM_SHA1_RSA_PKCS_PSS;
case SEC_OID_SHA224:
return CKM_SHA224_RSA_PKCS_PSS;
case SEC_OID_SHA256:
return CKM_SHA256_RSA_PKCS_PSS;
case SEC_OID_SHA384:
return CKM_SHA384_RSA_PKCS_PSS;
case SEC_OID_SHA512:
return CKM_SHA512_RSA_PKCS_PSS;
default:
break;
}
return CKM_INVALID_MECHANISM;
}
class Pkcs11RsaPssTestBase : public Pk11SignatureTest {
public:
Pkcs11RsaPssTestBase(SECOidTag hashOid, CK_RSA_PKCS_MGF_TYPE mgf, int sLen)
: Pk11SignatureTest(CKM_RSA_PKCS_PSS, hashOid, RsaPssMapCombo(hashOid)) {
pss_params_.hashAlg = PK11_AlgtagToMechanism(hashOid);
pss_params_.mgf = mgf;
pss_params_.sLen = sLen;
params_.type = siBuffer;
params_.data = reinterpret_cast<unsigned char*>(&pss_params_);
params_.len = sizeof(pss_params_);
}
const SECItem* parameters() const { return ¶ms_; }
void Verify(const RsaPssTestVector& vec) {
Pkcs11SignatureTestParams params = {
DataBuffer(), DataBuffer(vec.public_key.data(), vec.public_key.size()),
DataBuffer(vec.msg.data(), vec.msg.size()),
DataBuffer(vec.sig.data(), vec.sig.size())};
Pk11SignatureTest::Verify(params, vec.valid);
}
private:
CK_RSA_PKCS_PSS_PARAMS pss_params_;
SECItem params_;
};
class Pkcs11RsaPssTest : public Pkcs11RsaPssTestBase {
public:
Pkcs11RsaPssTest()
: Pkcs11RsaPssTestBase(SEC_OID_SHA1, CKG_MGF1_SHA1, SHA1_LENGTH) {}
};
class Pkcs11RsaPssTestWycheproof : public ::testing::Test {
public:
struct TestVector {
uint64_t id;
std::vector<uint8_t> msg;
std::vector<uint8_t> sig;
bool valid;
};
Pkcs11RsaPssTestWycheproof() {}
void Run(const std::string& file) {
WycheproofHeader("rsa_pss_" + file, "RSASSA-PSS",
"rsassa_pss_verify_schema.json",
[this](JsonReader& r) { RunGroup(r); });
}
static void ReadTestAttr(TestVector& t, const std::string& n, JsonReader& r) {
if (n == "msg") {
t.msg = r.ReadHex();
} else if (n == "sig") {
t.sig = r.ReadHex();
} else {
FAIL() << "unknown key in test: " << n;
}
}
private:
class Pkcs11RsaPssTestWrap : public Pkcs11RsaPssTestBase {
public:
Pkcs11RsaPssTestWrap(SECOidTag hash, CK_RSA_PKCS_MGF_TYPE mgf, int s_len)
: Pkcs11RsaPssTestBase(hash, mgf, s_len) {}
void TestBody() {}
void Verify(const Pkcs11SignatureTestParams& params, bool valid) {
Pk11SignatureTest::Verify(params, valid);
}
};
void RunTests(const std::vector<uint8_t>& public_key, SECOidTag hash,
CK_RSA_PKCS_MGF_TYPE mgf, int s_len,
const std::vector<TestVector>& tests) {
ASSERT_NE(0u, public_key.size());
ASSERT_NE(SEC_OID_UNKNOWN, hash);
ASSERT_NE(CKM_INVALID_MECHANISM, mgf);
ASSERT_NE(0u, tests.size());
for (auto& v : tests) {
std::cout << "Running tcid: " << v.id << std::endl;
Pkcs11RsaPssTestWrap test(hash, mgf, s_len);
Pkcs11SignatureTestParams params = {
DataBuffer(), DataBuffer(public_key.data(), public_key.size()),
DataBuffer(v.msg.data(), v.msg.size()),
DataBuffer(v.sig.data(), v.sig.size())};
test.Verify(params, v.valid);
}
}
void RunGroup(JsonReader& r) {
std::vector<uint8_t> public_key;
SECOidTag hash = SEC_OID_UNKNOWN;
CK_RSA_PKCS_MGF_TYPE mgf = CKM_INVALID_MECHANISM;
int s_len = 0;
std::vector<TestVector> tests;
while (r.NextItem()) {
std::string n = r.ReadLabel();
if (n == "") {
break;
}
if (n == "e" || n == "keyAsn" || n == "keyPem" || n == "n") {
(void)r.ReadString();
} else if (n == "keyDer") {
public_key = r.ReadHex();
} else if (n == "keysize") {
(void)r.ReadInt();
} else if (n == "mgf") {
std::string s = r.ReadString();
ASSERT_EQ(s, "MGF1");
} else if (n == "mgfSha") {
std::string s = r.ReadString();
if (s == "SHA-1") {
mgf = CKG_MGF1_SHA1;
} else if (s == "SHA-224") {
mgf = CKG_MGF1_SHA224;
} else if (s == "SHA-256") {
mgf = CKG_MGF1_SHA256;
} else if (s == "SHA-384") {
mgf = CKG_MGF1_SHA384;
} else if (s == "SHA-512") {
mgf = CKG_MGF1_SHA512;
} else {
FAIL() << "unsupported MGF hash";
}
} else if (n == "sLen") {
s_len = static_cast<unsigned int>(r.ReadInt());
} else if (n == "sha") {
std::string s = r.ReadString();
if (s == "SHA-1") {
hash = SEC_OID_SHA1;
} else if (s == "SHA-224") {
hash = SEC_OID_SHA224;
} else if (s == "SHA-256") {
hash = SEC_OID_SHA256;
} else if (s == "SHA-384") {
hash = SEC_OID_SHA384;
} else if (s == "SHA-512") {
hash = SEC_OID_SHA512;
} else {
FAIL() << "unsupported hash";
}
} else if (n == "type") {
ASSERT_EQ("RsassaPssVerify", r.ReadString());
} else if (n == "tests") {
WycheproofReadTests(r, &tests, ReadTestAttr);
} else {
FAIL() << "unknown test group attribute: " << n;
}
}
RunTests(public_key, hash, mgf, s_len, tests);
}
};
TEST_F(Pkcs11RsaPssTest, GenerateAndSignAndVerify) {
// Sign data with a 1024-bit RSA key, using PSS/SHA-256.
SECOidTag hashOid = SEC_OID_SHA256;
CK_MECHANISM_TYPE hash_mech = CKM_SHA256;
CK_RSA_PKCS_MGF_TYPE mgf = CKG_MGF1_SHA256;
PK11RSAGenParams rsaGenParams = {1024, 0x10001};
// Generate RSA key pair.
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
SECKEYPublicKey* pub_keyRaw = nullptr;
ScopedSECKEYPrivateKey privKey(
PK11_GenerateKeyPair(slot.get(), CKM_RSA_PKCS_KEY_PAIR_GEN, &rsaGenParams,
&pub_keyRaw, false, false, nullptr));
ASSERT_TRUE(!!privKey && pub_keyRaw);
ScopedSECKEYPublicKey pub_key(pub_keyRaw);
// Generate random data to sign.
uint8_t dataBuf[50];
SECItem data = {siBuffer, dataBuf, sizeof(dataBuf)};
unsigned int hLen = HASH_ResultLenByOidTag(hashOid);
SECStatus rv = PK11_GenerateRandomOnSlot(slot.get(), data.data, data.len);
EXPECT_EQ(rv, SECSuccess);
// Allocate memory for the signature.
std::vector<uint8_t> sigBuf(PK11_SignatureLen(privKey.get()));
SECItem sig = {siBuffer, &sigBuf[0],
static_cast<unsigned int>(sigBuf.size())};
// Set up PSS parameters.
CK_RSA_PKCS_PSS_PARAMS pss_params = {hash_mech, mgf, hLen};
SECItem params = {siBuffer, reinterpret_cast<unsigned char*>(&pss_params),
sizeof(pss_params)};
// Sign.
rv = PK11_SignWithMechanism(privKey.get(), mechanism(), ¶ms, &sig, &data);
EXPECT_EQ(rv, SECSuccess);
// Verify.
rv = PK11_VerifyWithMechanism(pub_key.get(), mechanism(), ¶ms, &sig,
&data, nullptr);
EXPECT_EQ(rv, SECSuccess);
// Verification with modified data must fail.
data.data[0] ^= 0xff;
rv = PK11_VerifyWithMechanism(pub_key.get(), mechanism(), ¶ms, &sig,
&data, nullptr);
EXPECT_EQ(rv, SECFailure);
// Verification with original data but the wrong signature must fail.
data.data[0] ^= 0xff; // Revert previous changes.
sig.data[0] ^= 0xff;
rv = PK11_VerifyWithMechanism(pub_key.get(), mechanism(), ¶ms, &sig,
&data, nullptr);
EXPECT_EQ(rv, SECFailure);
}
TEST_F(Pkcs11RsaPssTest, NoLeakWithInvalidExponent) {
// Attempt to generate an RSA key with a public exponent of 1. This should
// fail, but it shouldn't leak memory.
PK11RSAGenParams rsaGenParams = {1024, 0x01};
// Generate RSA key pair.
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
SECKEYPublicKey* pub_key = nullptr;
SECKEYPrivateKey* privKey =
PK11_GenerateKeyPair(slot.get(), CKM_RSA_PKCS_KEY_PAIR_GEN, &rsaGenParams,
&pub_key, false, false, nullptr);
EXPECT_FALSE(privKey);
EXPECT_FALSE(pub_key);
}
class Pkcs11RsaPssVectorTest
: public Pkcs11RsaPssTest,
public ::testing::WithParamInterface<Pkcs11SignatureTestParams> {};
TEST_P(Pkcs11RsaPssVectorTest, Verify) {
Pk11SignatureTest::Verify(GetParam());
}
TEST_P(Pkcs11RsaPssVectorTest, SignAndVerify) { SignAndVerify(GetParam()); }
#define VECTOR(pkcs8, spki, data, sig) \
{ \
DataBuffer(pkcs8, sizeof(pkcs8)), DataBuffer(spki, sizeof(spki)), \
DataBuffer(data, sizeof(data)), DataBuffer(sig, sizeof(sig)) \
}
#define VECTOR_N(n) \
VECTOR(kTestVector##n##Pkcs8, kTestVector##n##Spki, kTestVector##n##Data, \
kTestVector##n##Sig)
static const Pkcs11SignatureTestParams kRsaPssVectors[] = {
// RSA-PSS test vectors, pss-vect.txt, Example 1.1: A 1024-bit RSA Key Pair
VECTOR_N(1),
// RSA-PSS test vectors, pss-vect.txt, Example 2.1: A 1025-bit RSA Key Pair
VECTOR_N(2),
// RSA-PSS test vectors, pss-vect.txt, Example 3.1: A 1026-bit RSA Key Pair
VECTOR_N(3),
// RSA-PSS test vectors, pss-vect.txt, Example 4.1: A 1027-bit RSA Key Pair
VECTOR_N(4),
// RSA-PSS test vectors, pss-vect.txt, Example 5.1: A 1028-bit RSA Key Pair
VECTOR_N(5),
// RSA-PSS test vectors, pss-vect.txt, Example 6.1: A 1029-bit RSA Key Pair
VECTOR_N(6),
// RSA-PSS test vectors, pss-vect.txt, Example 7.1: A 1030-bit RSA Key Pair
VECTOR_N(7),
// RSA-PSS test vectors, pss-vect.txt, Example 8.1: A 1031-bit RSA Key Pair
VECTOR_N(8),
// RSA-PSS test vectors, pss-vect.txt, Example 9.1: A 1536-bit RSA Key Pair
VECTOR_N(9),
// RSA-PSS test vectors, pss-vect.txt, Example 10.1: A 2048-bit RSA Key Pair
VECTOR_N(10)};
INSTANTIATE_TEST_SUITE_P(RsaPssSignVerify, Pkcs11RsaPssVectorTest,
::testing::ValuesIn(kRsaPssVectors));
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss2048Sha1) { Run("2048_sha1_mgf1_20"); }
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss2048Sha256_0) {
Run("2048_sha256_mgf1_0");
}
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss2048Sha256_32) {
Run("2048_sha256_mgf1_32");
}
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss3072Sha256) {
Run("3072_sha256_mgf1_32");
}
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss4096Sha256) {
Run("4096_sha256_mgf1_32");
}
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPss4096Sha512) {
Run("4096_sha512_mgf1_32");
}
TEST_F(Pkcs11RsaPssTestWycheproof, RsaPssMisc) { Run("misc"); }
} // namespace nss_test