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/* 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 "cryptohi.h"
#include "cpputil.h"
#include "gtest/gtest.h"
#include "json_reader.h"
#include "nss_scoped_ptrs.h"
#include "testvectors/curve25519-vectors.h"
#include "pk11_ecdsa_vectors.h"
#include "pk11_signature_test.h"
#include "pk11_keygen.h"
namespace nss_test {
CK_MECHANISM_TYPE
EcHashToComboMech(SECOidTag hash) {
switch (hash) {
case SEC_OID_SHA1:
return CKM_ECDSA_SHA1;
case SEC_OID_SHA224:
return CKM_ECDSA_SHA224;
case SEC_OID_SHA256:
return CKM_ECDSA_SHA256;
case SEC_OID_SHA384:
return CKM_ECDSA_SHA384;
case SEC_OID_SHA512:
return CKM_ECDSA_SHA512;
default:
break;
}
return CKM_INVALID_MECHANISM;
}
class Pkcs11EcdsaTestBase : public Pk11SignatureTest {
protected:
Pkcs11EcdsaTestBase(SECOidTag hash_oid)
: Pk11SignatureTest(CKM_ECDSA, hash_oid, EcHashToComboMech(hash_oid)) {}
};
struct Pkcs11EcdsaTestParams {
SECOidTag hash_oid_;
Pkcs11SignatureTestParams sig_params_;
};
class Pkcs11EcdsaTest
: public Pkcs11EcdsaTestBase,
public ::testing::WithParamInterface<Pkcs11EcdsaTestParams> {
public:
Pkcs11EcdsaTest() : Pkcs11EcdsaTestBase(GetParam().hash_oid_) {}
};
TEST_P(Pkcs11EcdsaTest, Verify) { Verify(GetParam().sig_params_); }
TEST_P(Pkcs11EcdsaTest, SignAndVerify) {
SignAndVerify(GetParam().sig_params_);
}
TEST_P(Pkcs11EcdsaTest, ImportExport) {
ImportExport(GetParam().sig_params_.pkcs8_);
}
static const Pkcs11EcdsaTestParams kEcdsaVectors[] = {
{SEC_OID_SHA256,
{DataBuffer(kP256Pkcs8, sizeof(kP256Pkcs8)),
DataBuffer(kP256Spki, sizeof(kP256Spki)),
DataBuffer(kP256Data, sizeof(kP256Data)),
DataBuffer(kP256Signature, sizeof(kP256Signature))}},
{SEC_OID_SHA256,
{DataBuffer(kP256Pkcs8ZeroPad, sizeof(kP256Pkcs8ZeroPad)),
DataBuffer(kP256SpkiZeroPad, sizeof(kP256SpkiZeroPad)),
DataBuffer(kP256DataZeroPad, sizeof(kP256DataZeroPad)),
DataBuffer(kP256SignatureZeroPad, sizeof(kP256SignatureZeroPad))}},
{SEC_OID_SHA384,
{DataBuffer(kP384Pkcs8, sizeof(kP384Pkcs8)),
DataBuffer(kP384Spki, sizeof(kP384Spki)),
DataBuffer(kP384Data, sizeof(kP384Data)),
DataBuffer(kP384Signature, sizeof(kP384Signature))}},
{SEC_OID_SHA512,
{DataBuffer(kP521Pkcs8, sizeof(kP521Pkcs8)),
DataBuffer(kP521Spki, sizeof(kP521Spki)),
DataBuffer(kP521Data, sizeof(kP521Data)),
DataBuffer(kP521Signature, sizeof(kP521Signature))}}};
INSTANTIATE_TEST_SUITE_P(EcdsaSignVerify, Pkcs11EcdsaTest,
::testing::ValuesIn(kEcdsaVectors));
class Pkcs11EcdsaSha256Test : public Pkcs11EcdsaTestBase {
public:
Pkcs11EcdsaSha256Test() : Pkcs11EcdsaTestBase(SEC_OID_SHA256) {}
};
// Importing a private key in PKCS#8 format must fail when the outer AlgID
// struct contains neither id-ecPublicKey nor a namedCurve parameter.
TEST_F(Pkcs11EcdsaSha256Test, ImportNoCurveOIDOrAlgorithmParams) {
DataBuffer k(kP256Pkcs8NoCurveOIDOrAlgorithmParams,
sizeof(kP256Pkcs8NoCurveOIDOrAlgorithmParams));
EXPECT_FALSE(ImportPrivateKey(k));
};
// Importing a private key in PKCS#8 format must succeed when only the outer
// AlgID struct contains the namedCurve parameters.
TEST_F(Pkcs11EcdsaSha256Test, ImportOnlyAlgorithmParams) {
DataBuffer k(kP256Pkcs8OnlyAlgorithmParams,
sizeof(kP256Pkcs8OnlyAlgorithmParams));
DataBuffer data(kP256Data, sizeof(kP256Data));
DataBuffer sig;
DataBuffer sig2;
EXPECT_TRUE(ImportPrivateKeyAndSignHashedData(k, data, &sig, &sig2));
};
// Importing a private key in PKCS#8 format must succeed when the outer AlgID
// struct and the inner ECPrivateKey contain the same namedCurve parameters.
// The inner curveOID is always ignored, so only the outer one will be used.
TEST_F(Pkcs11EcdsaSha256Test, ImportMatchingCurveOIDAndAlgorithmParams) {
DataBuffer k(kP256Pkcs8MatchingCurveOIDAndAlgorithmParams,
sizeof(kP256Pkcs8MatchingCurveOIDAndAlgorithmParams));
DataBuffer data(kP256Data, sizeof(kP256Data));
DataBuffer sig;
DataBuffer sig2;
EXPECT_TRUE(ImportPrivateKeyAndSignHashedData(k, data, &sig, &sig2));
};
// Importing a private key in PKCS#8 format must succeed when the outer AlgID
// struct and the inner ECPrivateKey contain dissimilar namedCurve parameters.
// The inner curveOID is always ignored, so only the outer one will be used.
TEST_F(Pkcs11EcdsaSha256Test, ImportDissimilarCurveOIDAndAlgorithmParams) {
DataBuffer k(kP256Pkcs8DissimilarCurveOIDAndAlgorithmParams,
sizeof(kP256Pkcs8DissimilarCurveOIDAndAlgorithmParams));
DataBuffer data(kP256Data, sizeof(kP256Data));
DataBuffer sig;
DataBuffer sig2;
EXPECT_TRUE(ImportPrivateKeyAndSignHashedData(k, data, &sig, &sig2));
};
// Importing a private key in PKCS#8 format must fail when the outer ASN.1
// AlgorithmID struct contains only id-ecPublicKey but no namedCurve parameter.
TEST_F(Pkcs11EcdsaSha256Test, ImportNoAlgorithmParams) {
DataBuffer k(kP256Pkcs8NoAlgorithmParams,
sizeof(kP256Pkcs8NoAlgorithmParams));
EXPECT_FALSE(ImportPrivateKey(k));
};
// Importing a private key in PKCS#8 format must fail when id-ecPublicKey is
// given (so we know it's an EC key) but the namedCurve parameter is unknown.
TEST_F(Pkcs11EcdsaSha256Test, ImportInvalidAlgorithmParams) {
DataBuffer k(kP256Pkcs8InvalidAlgorithmParams,
sizeof(kP256Pkcs8InvalidAlgorithmParams));
EXPECT_FALSE(ImportPrivateKey(k));
};
// Importing a private key in PKCS#8 format with a point not on the curve will
// succeed. Using the contained public key however will fail when trying to
// import it before using it for any operation.
TEST_F(Pkcs11EcdsaSha256Test, ImportPointNotOnCurve) {
DataBuffer k(kP256Pkcs8PointNotOnCurve, sizeof(kP256Pkcs8PointNotOnCurve));
ScopedSECKEYPrivateKey privKey(ImportPrivateKey(k));
ASSERT_TRUE(privKey);
ScopedSECKEYPublicKey pubKey(SECKEY_ConvertToPublicKey(privKey.get()));
ASSERT_TRUE(pubKey);
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
ASSERT_TRUE(slot);
auto handle = PK11_ImportPublicKey(slot.get(), pubKey.get(), false);
EXPECT_EQ(handle, static_cast<decltype(handle)>(CK_INVALID_HANDLE));
};
// Importing a private key in PKCS#8 format must fail when no point is given.
// PK11 currently offers no APIs to derive raw public keys from private values.
TEST_F(Pkcs11EcdsaSha256Test, ImportNoPublicKey) {
DataBuffer k(kP256Pkcs8NoPublicKey, sizeof(kP256Pkcs8NoPublicKey));
EXPECT_FALSE(ImportPrivateKey(k));
};
// Importing a public key in SPKI format must fail when id-ecPublicKey is
// given (so we know it's an EC key) but the namedCurve parameter is missing.
TEST_F(Pkcs11EcdsaSha256Test, ImportSpkiNoAlgorithmParams) {
DataBuffer k(kP256SpkiNoAlgorithmParams, sizeof(kP256SpkiNoAlgorithmParams));
EXPECT_FALSE(ImportPublicKey(k));
}
// Importing a public key in SPKI format with a point not on the curve will
// succeed. Using the public key however will fail when trying to import
// it before using it for any operation.
TEST_F(Pkcs11EcdsaSha256Test, ImportSpkiPointNotOnCurve) {
DataBuffer k(kP256SpkiPointNotOnCurve, sizeof(kP256SpkiPointNotOnCurve));
ScopedSECKEYPublicKey pubKey(ImportPublicKey(k));
ASSERT_TRUE(pubKey);
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
ASSERT_TRUE(slot);
auto handle = PK11_ImportPublicKey(slot.get(), pubKey.get(), false);
EXPECT_EQ(handle, static_cast<decltype(handle)>(CK_INVALID_HANDLE));
}
class Pkcs11EcdsaWycheproofTest : public ::testing::Test {
protected:
void Run(const std::string& name) {
WycheproofHeader(name, "ECDSA", "ecdsa_verify_schema.json",
[this](JsonReader& r) { RunGroup(r); });
}
private:
void RunGroup(JsonReader& r) {
std::vector<EcdsaTestVector> tests;
std::vector<uint8_t> public_key;
SECOidTag hash_oid = SEC_OID_UNKNOWN;
while (r.NextItem()) {
std::string n = r.ReadLabel();
if (n == "") {
break;
}
if (n == "key" || n == "keyPem") {
r.SkipValue();
} else if (n == "keyDer") {
public_key = r.ReadHex();
} else if (n == "sha") {
hash_oid = r.ReadHash();
} else if (n == "type") {
ASSERT_EQ("EcdsaVerify", r.ReadString());
} else if (n == "tests") {
WycheproofReadTests(r, &tests, ReadTestAttr);
} else {
FAIL() << "unknown label in group: " << n;
}
}
for (auto& t : tests) {
std::cout << "Running test " << t.id << std::endl;
t.public_key = public_key;
t.hash_oid = hash_oid;
Derive(t);
}
}
static void ReadTestAttr(EcdsaTestVector& 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 test key: " << n;
}
}
void Derive(const EcdsaTestVector& vec) {
SECItem spki_item = {siBuffer, toUcharPtr(vec.public_key.data()),
static_cast<unsigned int>(vec.public_key.size())};
SECItem sig_item = {siBuffer, toUcharPtr(vec.sig.data()),
static_cast<unsigned int>(vec.sig.size())};
DataBuffer hash;
hash.Allocate(static_cast<size_t>(HASH_ResultLenByOidTag(vec.hash_oid)));
SECStatus rv = PK11_HashBuf(vec.hash_oid, toUcharPtr(hash.data()),
toUcharPtr(vec.msg.data()), vec.msg.size());
ASSERT_EQ(rv, SECSuccess);
SECItem hash_item = {siBuffer, toUcharPtr(hash.data()),
static_cast<unsigned int>(hash.len())};
ScopedCERTSubjectPublicKeyInfo cert_spki(
SECKEY_DecodeDERSubjectPublicKeyInfo(&spki_item));
ASSERT_TRUE(cert_spki);
ScopedSECKEYPublicKey pub_key(SECKEY_ExtractPublicKey(cert_spki.get()));
ASSERT_TRUE(pub_key);
rv = VFY_VerifyDigestDirect(&hash_item, pub_key.get(), &sig_item,
SEC_OID_ANSIX962_EC_PUBLIC_KEY, vec.hash_oid,
nullptr);
EXPECT_EQ(rv, vec.valid ? SECSuccess : SECFailure);
};
};
TEST_F(Pkcs11EcdsaWycheproofTest, P256) { Run("ecdsa_secp256r1_sha256"); }
TEST_F(Pkcs11EcdsaWycheproofTest, P256Sha512) { Run("ecdsa_secp256r1_sha512"); }
TEST_F(Pkcs11EcdsaWycheproofTest, P384) { Run("ecdsa_secp384r1_sha384"); }
TEST_F(Pkcs11EcdsaWycheproofTest, P384Sha512) { Run("ecdsa_secp384r1_sha512"); }
TEST_F(Pkcs11EcdsaWycheproofTest, P521) { Run("ecdsa_secp521r1_sha512"); }
class Pkcs11EcdsaRoundtripTest
: public Pkcs11EcdsaTestBase,
public ::testing::WithParamInterface<SECOidTag> {
public:
Pkcs11EcdsaRoundtripTest() : Pkcs11EcdsaTestBase(SEC_OID_SHA256) {}
protected:
void GenerateExportImportSignVerify(SECOidTag tag) {
Pkcs11KeyPairGenerator generator(CKM_EC_KEY_PAIR_GEN, tag);
ScopedSECKEYPrivateKey priv;
ScopedSECKEYPublicKey pub;
generator.GenerateKey(&priv, &pub, false);
DataBuffer exported;
ExportPrivateKey(&priv, exported);
if (tag != SEC_OID_CURVE25519) {
DataBuffer sig;
DataBuffer sig2;
DataBuffer data(kP256Data, sizeof(kP256Data));
ASSERT_TRUE(
ImportPrivateKeyAndSignHashedData(exported, data, &sig, &sig2));
Verify(pub, data, sig);
}
}
};
TEST_P(Pkcs11EcdsaRoundtripTest, GenerateExportImportSignVerify) {
GenerateExportImportSignVerify(GetParam());
}
INSTANTIATE_TEST_SUITE_P(Pkcs11EcdsaRoundtripTest, Pkcs11EcdsaRoundtripTest,
::testing::Values(SEC_OID_SECG_EC_SECP256R1,
SEC_OID_SECG_EC_SECP384R1,
SEC_OID_SECG_EC_SECP521R1,
SEC_OID_CURVE25519));
} // namespace nss_test