/
ssl_auth_unittest.cc
1863 lines (1651 loc) · 72.5 KB
/
ssl_auth_unittest.cc
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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 "secerr.h"
#include "ssl.h"
#include "sslerr.h"
#include "sslproto.h"
extern "C" {
// This is not something that should make you happy.
#include "libssl_internals.h"
}
#include "gtest_utils.h"
#include "nss_scoped_ptrs.h"
#include "tls_connect.h"
#include "tls_filter.h"
#include "tls_parser.h"
namespace nss_test {
TEST_P(TlsConnectGeneric, ServerAuthBigRsa) {
Reset(TlsAgent::kRsa2048);
Connect();
CheckKeys();
}
TEST_P(TlsConnectGeneric, ServerAuthRsaChain) {
Reset("rsa_chain");
Connect();
CheckKeys();
size_t chain_length;
EXPECT_TRUE(client_->GetPeerChainLength(&chain_length));
EXPECT_EQ(2UL, chain_length);
}
TEST_P(TlsConnectTls12Plus, ServerAuthRsaPss) {
static const SSLSignatureScheme kSignatureSchemePss[] = {
ssl_sig_rsa_pss_pss_sha256};
Reset(TlsAgent::kServerRsaPss);
client_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
server_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
Connect();
CheckKeys(ssl_kea_ecdh, ssl_grp_ec_curve25519, ssl_auth_rsa_pss,
ssl_sig_rsa_pss_pss_sha256);
}
// PSS doesn't work with TLS 1.0 or 1.1 because we can't signal it.
TEST_P(TlsConnectPre12, ServerAuthRsaPssFails) {
static const SSLSignatureScheme kSignatureSchemePss[] = {
ssl_sig_rsa_pss_pss_sha256};
Reset(TlsAgent::kServerRsaPss);
client_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
server_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
ConnectExpectAlert(server_, kTlsAlertHandshakeFailure);
server_->CheckErrorCode(SSL_ERROR_NO_CYPHER_OVERLAP);
client_->CheckErrorCode(SSL_ERROR_NO_CYPHER_OVERLAP);
}
// Check that a PSS certificate with no parameters works.
TEST_P(TlsConnectTls12Plus, ServerAuthRsaPssNoParameters) {
static const SSLSignatureScheme kSignatureSchemePss[] = {
ssl_sig_rsa_pss_pss_sha256};
Reset("rsa_pss_noparam");
client_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
server_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
Connect();
CheckKeys(ssl_kea_ecdh, ssl_grp_ec_curve25519, ssl_auth_rsa_pss,
ssl_sig_rsa_pss_pss_sha256);
}
TEST_P(TlsConnectGeneric, ServerAuthRsaPssChain) {
Reset("rsa_pss_chain");
Connect();
CheckKeys();
size_t chain_length;
EXPECT_TRUE(client_->GetPeerChainLength(&chain_length));
EXPECT_EQ(2UL, chain_length);
}
TEST_P(TlsConnectGeneric, ServerAuthRsaCARsaPssChain) {
Reset("rsa_ca_rsa_pss_chain");
Connect();
CheckKeys();
size_t chain_length;
EXPECT_TRUE(client_->GetPeerChainLength(&chain_length));
EXPECT_EQ(2UL, chain_length);
}
TEST_P(TlsConnectGeneric, ServerAuthRejected) {
EnsureTlsSetup();
client_->SetAuthCertificateCallback(
[](TlsAgent*, PRBool, PRBool) -> SECStatus { return SECFailure; });
ConnectExpectAlert(client_, kTlsAlertBadCertificate);
client_->CheckErrorCode(SSL_ERROR_BAD_CERTIFICATE);
server_->CheckErrorCode(SSL_ERROR_BAD_CERT_ALERT);
EXPECT_EQ(TlsAgent::STATE_ERROR, client_->state());
}
struct AuthCompleteArgs : public PollTarget {
AuthCompleteArgs(const std::shared_ptr<TlsAgent>& a, PRErrorCode c)
: agent(a), code(c) {}
std::shared_ptr<TlsAgent> agent;
PRErrorCode code;
};
static void CallAuthComplete(PollTarget* target, Event event) {
EXPECT_EQ(TIMER_EVENT, event);
auto args = reinterpret_cast<AuthCompleteArgs*>(target);
std::cerr << args->agent->role_str() << ": call SSL_AuthCertificateComplete "
<< (args->code ? PR_ErrorToName(args->code) : "no error")
<< std::endl;
EXPECT_EQ(SECSuccess,
SSL_AuthCertificateComplete(args->agent->ssl_fd(), args->code));
args->agent->Handshake(); // Make the TlsAgent aware of the error.
delete args;
}
// Install an AuthCertificateCallback that blocks when called. Then
// SSL_AuthCertificateComplete is called on a very short timer. This allows any
// processing that might follow the callback to complete.
static void SetDeferredAuthCertificateCallback(std::shared_ptr<TlsAgent> agent,
PRErrorCode code) {
auto args = new AuthCompleteArgs(agent, code);
agent->SetAuthCertificateCallback(
[args](TlsAgent*, PRBool, PRBool) -> SECStatus {
// This can't be 0 or we race the message from the client to the server,
// and tests assume that we lose that race.
std::shared_ptr<Poller::Timer> timer_handle;
Poller::Instance()->SetTimer(1U, args, CallAuthComplete, &timer_handle);
return SECWouldBlock;
});
}
TEST_P(TlsConnectTls13, ServerAuthRejectAsync) {
SetDeferredAuthCertificateCallback(client_, SEC_ERROR_REVOKED_CERTIFICATE);
ConnectExpectAlert(client_, kTlsAlertCertificateRevoked);
// We only detect the error here when we attempt to handshake, so all the
// client learns is that the handshake has already failed.
client_->CheckErrorCode(SSL_ERROR_HANDSHAKE_FAILED);
server_->CheckErrorCode(SSL_ERROR_REVOKED_CERT_ALERT);
}
// In TLS 1.2 and earlier, this will result in the client sending its Finished
// before learning that the server certificate is bad. That means that the
// server will believe that the handshake is complete.
TEST_P(TlsConnectGenericPre13, ServerAuthRejectAsync) {
SetDeferredAuthCertificateCallback(client_, SEC_ERROR_EXPIRED_CERTIFICATE);
client_->ExpectSendAlert(kTlsAlertCertificateExpired);
server_->ExpectReceiveAlert(kTlsAlertCertificateExpired);
ConnectExpectFailOneSide(TlsAgent::CLIENT);
client_->CheckErrorCode(SSL_ERROR_HANDSHAKE_FAILED);
// The server might not receive the alert that the client sends, which would
// cause the test to fail when it cleans up. Reset expectations.
server_->ExpectReceiveAlert(kTlsAlertCloseNotify, kTlsAlertWarning);
}
TEST_P(TlsConnectGeneric, ClientAuth) {
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys();
}
class TlsCertificateRequestContextRecorder : public TlsHandshakeFilter {
public:
TlsCertificateRequestContextRecorder(const std::shared_ptr<TlsAgent>& a,
uint8_t handshake_type)
: TlsHandshakeFilter(a, {handshake_type}), buffer_(), filtered_(false) {
EnableDecryption();
}
bool filtered() const { return filtered_; }
const DataBuffer& buffer() const { return buffer_; }
protected:
virtual PacketFilter::Action FilterHandshake(const HandshakeHeader& header,
const DataBuffer& input,
DataBuffer* output) {
assert(1 < input.len());
size_t len = input.data()[0];
assert(len + 1 < input.len());
buffer_.Assign(input.data() + 1, len);
filtered_ = true;
return KEEP;
}
private:
DataBuffer buffer_;
bool filtered_;
};
// All stream only tests; DTLS isn't supported yet.
TEST_F(TlsConnectStreamTls13, PostHandshakeAuth) {
EnsureTlsSetup();
auto capture_cert_req = MakeTlsFilter<TlsCertificateRequestContextRecorder>(
server_, kTlsHandshakeCertificateRequest);
auto capture_certificate =
MakeTlsFilter<TlsCertificateRequestContextRecorder>(
client_, kTlsHandshakeCertificate);
client_->SetupClientAuth();
client_->SetOption(SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE);
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
Connect();
EXPECT_EQ(0U, called);
EXPECT_FALSE(capture_cert_req->filtered());
EXPECT_FALSE(capture_certificate->filtered());
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
// Need to do a round-trip so that the post-handshake message is
// handled on both client and server.
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(1U, called);
EXPECT_TRUE(capture_cert_req->filtered());
EXPECT_TRUE(capture_certificate->filtered());
// Check if a non-empty request context is generated and it is
// properly sent back.
EXPECT_LT(0U, capture_cert_req->buffer().len());
EXPECT_EQ(capture_cert_req->buffer().len(),
capture_certificate->buffer().len());
EXPECT_EQ(0, memcmp(capture_cert_req->buffer().data(),
capture_certificate->buffer().data(),
capture_cert_req->buffer().len()));
ScopedCERTCertificate cert1(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert1.get());
ScopedCERTCertificate cert2(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert2.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert1->derCert, &cert2->derCert));
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthAfterResumption) {
ConfigureSessionCache(RESUME_BOTH, RESUME_TICKET);
ConfigureVersion(SSL_LIBRARY_VERSION_TLS_1_3);
Connect();
SendReceive(); // Need to read so that we absorb the session tickets.
CheckKeys();
// Resume the connection.
Reset();
ConfigureSessionCache(RESUME_BOTH, RESUME_TICKET);
ConfigureVersion(SSL_LIBRARY_VERSION_TLS_1_3);
ExpectResumption(RESUME_TICKET);
client_->SetupClientAuth();
client_->SetOption(SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE);
Connect();
SendReceive();
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(1U, called);
ScopedCERTCertificate cert1(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert1.get());
ScopedCERTCertificate cert2(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert2.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert1->derCert, &cert2->derCert));
}
static SECStatus GetClientAuthDataHook(void* self, PRFileDesc* fd,
CERTDistNames* caNames,
CERTCertificate** clientCert,
SECKEYPrivateKey** clientKey) {
ScopedCERTCertificate cert;
ScopedSECKEYPrivateKey priv;
// use a different certificate than TlsAgent::kClient
if (!TlsAgent::LoadCertificate(TlsAgent::kRsa2048, &cert, &priv)) {
return SECFailure;
}
*clientCert = cert.release();
*clientKey = priv.release();
return SECSuccess;
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthMultiple) {
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
Connect();
EXPECT_EQ(0U, called);
EXPECT_EQ(nullptr, SSL_PeerCertificate(server_->ssl_fd()));
// Send 1st CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(1U, called);
ScopedCERTCertificate cert1(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert1.get());
ScopedCERTCertificate cert2(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert2.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert1->derCert, &cert2->derCert));
// Send 2nd CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_GetClientAuthDataHook(
client_->ssl_fd(), GetClientAuthDataHook, nullptr));
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(2U, called);
ScopedCERTCertificate cert3(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert3.get());
ScopedCERTCertificate cert4(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert4.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert3->derCert, &cert4->derCert));
EXPECT_FALSE(SECITEM_ItemsAreEqual(&cert3->derCert, &cert1->derCert));
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthConcurrent) {
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
Connect();
// Send 1st CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
// Send 2nd CertificateRequest.
EXPECT_EQ(SECFailure, SSL_SendCertificateRequest(server_->ssl_fd()));
EXPECT_EQ(PR_WOULD_BLOCK_ERROR, PORT_GetError());
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthBeforeKeyUpdate) {
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
Connect();
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
// Send KeyUpdate.
EXPECT_EQ(SECFailure, SSL_KeyUpdate(server_->ssl_fd(), PR_TRUE));
EXPECT_EQ(PR_WOULD_BLOCK_ERROR, PORT_GetError());
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthDuringClientKeyUpdate) {
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
Connect();
CheckEpochs(3, 3);
// Send CertificateRequest from server.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
// Send KeyUpdate from client.
EXPECT_EQ(SECSuccess, SSL_KeyUpdate(client_->ssl_fd(), PR_TRUE));
server_->SendData(50); // server sends CertificateRequest
client_->SendData(50); // client sends KeyUpdate
server_->ReadBytes(50); // server receives KeyUpdate and defers response
CheckEpochs(4, 3);
client_->ReadBytes(50); // client receives CertificateRequest
client_->SendData(
50); // client sends Certificate, CertificateVerify, Finished
server_->ReadBytes(
50); // server receives Certificate, CertificateVerify, Finished
client_->CheckEpochs(3, 4);
server_->CheckEpochs(4, 4);
server_->SendData(50); // server sends KeyUpdate
client_->ReadBytes(50); // client receives KeyUpdate
client_->CheckEpochs(4, 4);
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthMissingExtension) {
client_->SetupClientAuth();
Connect();
// Send CertificateRequest, should fail due to missing
// post_handshake_auth extension.
EXPECT_EQ(SECFailure, SSL_SendCertificateRequest(server_->ssl_fd()));
EXPECT_EQ(SSL_ERROR_MISSING_POST_HANDSHAKE_AUTH_EXTENSION, PORT_GetError());
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthAfterClientAuth) {
client_->SetupClientAuth();
server_->RequestClientAuth(true);
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
Connect();
EXPECT_EQ(1U, called);
ScopedCERTCertificate cert1(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert1.get());
ScopedCERTCertificate cert2(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert2.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert1->derCert, &cert2->derCert));
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_GetClientAuthDataHook(
client_->ssl_fd(), GetClientAuthDataHook, nullptr));
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(2U, called);
ScopedCERTCertificate cert3(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert3.get());
ScopedCERTCertificate cert4(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert4.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert3->derCert, &cert4->derCert));
EXPECT_FALSE(SECITEM_ItemsAreEqual(&cert3->derCert, &cert1->derCert));
}
// Damages the request context in a CertificateRequest message.
// We don't modify a Certificate message instead, so that the client
// can compute CertificateVerify correctly.
class TlsDamageCertificateRequestContextFilter : public TlsHandshakeFilter {
public:
TlsDamageCertificateRequestContextFilter(const std::shared_ptr<TlsAgent>& a)
: TlsHandshakeFilter(a, {kTlsHandshakeCertificateRequest}) {
EnableDecryption();
}
protected:
virtual PacketFilter::Action FilterHandshake(const HandshakeHeader& header,
const DataBuffer& input,
DataBuffer* output) {
*output = input;
assert(1 < output->len());
// The request context has a 1 octet length.
output->data()[1] ^= 73;
return CHANGE;
}
};
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthContextMismatch) {
EnsureTlsSetup();
MakeTlsFilter<TlsDamageCertificateRequestContextFilter>(server_);
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
Connect();
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ExpectSendAlert(kTlsAlertIllegalParameter);
server_->ReadBytes(50);
EXPECT_EQ(SSL_ERROR_RX_MALFORMED_CERTIFICATE, PORT_GetError());
server_->ExpectReadWriteError();
server_->SendData(50);
client_->ExpectReceiveAlert(kTlsAlertIllegalParameter);
client_->ReadBytes(50);
EXPECT_EQ(SSL_ERROR_ILLEGAL_PARAMETER_ALERT, PORT_GetError());
}
// Replaces signature in a CertificateVerify message.
class TlsDamageSignatureFilter : public TlsHandshakeFilter {
public:
TlsDamageSignatureFilter(const std::shared_ptr<TlsAgent>& a)
: TlsHandshakeFilter(a, {kTlsHandshakeCertificateVerify}) {
EnableDecryption();
}
protected:
virtual PacketFilter::Action FilterHandshake(const HandshakeHeader& header,
const DataBuffer& input,
DataBuffer* output) {
*output = input;
assert(2 < output->len());
// The signature follows a 2-octet signature scheme.
output->data()[2] ^= 73;
return CHANGE;
}
};
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthBadSignature) {
EnsureTlsSetup();
MakeTlsFilter<TlsDamageSignatureFilter>(client_);
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
Connect();
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ExpectSendAlert(kTlsAlertDecodeError);
server_->ReadBytes(50);
EXPECT_EQ(SSL_ERROR_RX_MALFORMED_CERT_VERIFY, PORT_GetError());
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthDecline) {
EnsureTlsSetup();
auto capture_cert_req = MakeTlsFilter<TlsCertificateRequestContextRecorder>(
server_, kTlsHandshakeCertificateRequest);
auto capture_certificate =
MakeTlsFilter<TlsCertificateRequestContextRecorder>(
client_, kTlsHandshakeCertificate);
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
EXPECT_EQ(SECSuccess,
SSL_OptionSet(server_->ssl_fd(), SSL_REQUIRE_CERTIFICATE,
SSL_REQUIRE_ALWAYS));
// Client to decline the certificate request.
EXPECT_EQ(SECSuccess,
SSL_GetClientAuthDataHook(
client_->ssl_fd(),
[](void*, PRFileDesc*, CERTDistNames*, CERTCertificate**,
SECKEYPrivateKey**) -> SECStatus { return SECFailure; },
nullptr));
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
Connect();
EXPECT_EQ(0U, called);
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50); // send Certificate Request
client_->ReadBytes(50); // read Certificate Request
client_->SendData(50); // send empty Certificate+Finished
server_->ExpectSendAlert(kTlsAlertCertificateRequired);
server_->ReadBytes(50); // read empty Certificate+Finished
server_->ExpectReadWriteError();
server_->SendData(50); // send alert
// AuthCertificateCallback is not called, because the client sends
// an empty certificate_list.
EXPECT_EQ(0U, called);
EXPECT_TRUE(capture_cert_req->filtered());
EXPECT_TRUE(capture_certificate->filtered());
// Check if a non-empty request context is generated and it is
// properly sent back.
EXPECT_LT(0U, capture_cert_req->buffer().len());
EXPECT_EQ(capture_cert_req->buffer().len(),
capture_certificate->buffer().len());
EXPECT_EQ(0, memcmp(capture_cert_req->buffer().data(),
capture_certificate->buffer().data(),
capture_cert_req->buffer().len()));
}
// Check if post-handshake auth still works when session tickets are enabled:
// https://bugzilla.mozilla.org/show_bug.cgi?id=1553443
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthWithSessionTicketsEnabled) {
EnsureTlsSetup();
client_->SetupClientAuth();
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE));
EXPECT_EQ(SECSuccess, SSL_OptionSet(client_->ssl_fd(),
SSL_ENABLE_SESSION_TICKETS, PR_TRUE));
EXPECT_EQ(SECSuccess, SSL_OptionSet(server_->ssl_fd(),
SSL_ENABLE_SESSION_TICKETS, PR_TRUE));
size_t called = 0;
server_->SetAuthCertificateCallback(
[&called](TlsAgent*, PRBool, PRBool) -> SECStatus {
called++;
return SECSuccess;
});
Connect();
EXPECT_EQ(0U, called);
// Send CertificateRequest.
EXPECT_EQ(SECSuccess, SSL_GetClientAuthDataHook(
client_->ssl_fd(), GetClientAuthDataHook, nullptr));
EXPECT_EQ(SECSuccess, SSL_SendCertificateRequest(server_->ssl_fd()))
<< "Unexpected error: " << PORT_ErrorToName(PORT_GetError());
server_->SendData(50);
client_->ReadBytes(50);
client_->SendData(50);
server_->ReadBytes(50);
EXPECT_EQ(1U, called);
ScopedCERTCertificate cert1(SSL_PeerCertificate(server_->ssl_fd()));
ASSERT_NE(nullptr, cert1.get());
ScopedCERTCertificate cert2(SSL_LocalCertificate(client_->ssl_fd()));
ASSERT_NE(nullptr, cert2.get());
EXPECT_TRUE(SECITEM_ItemsAreEqual(&cert1->derCert, &cert2->derCert));
}
TEST_P(TlsConnectGenericPre13, ClientAuthRequiredRejected) {
server_->RequestClientAuth(true);
ConnectExpectAlert(server_, kTlsAlertBadCertificate);
client_->CheckErrorCode(SSL_ERROR_BAD_CERT_ALERT);
server_->CheckErrorCode(SSL_ERROR_NO_CERTIFICATE);
}
// In TLS 1.3, the client will claim that the connection is done and then
// receive the alert afterwards. So drive the handshake manually.
TEST_P(TlsConnectTls13, ClientAuthRequiredRejected) {
server_->RequestClientAuth(true);
StartConnect();
client_->Handshake(); // CH
server_->Handshake(); // SH.. (no resumption)
client_->Handshake(); // Next message
ASSERT_EQ(TlsAgent::STATE_CONNECTED, client_->state());
ExpectAlert(server_, kTlsAlertCertificateRequired);
server_->Handshake(); // Alert
server_->CheckErrorCode(SSL_ERROR_NO_CERTIFICATE);
client_->Handshake(); // Receive Alert
client_->CheckErrorCode(SSL_ERROR_RX_CERTIFICATE_REQUIRED_ALERT);
}
TEST_P(TlsConnectGeneric, ClientAuthRequestedRejected) {
server_->RequestClientAuth(false);
Connect();
CheckKeys();
}
TEST_P(TlsConnectGeneric, ClientAuthEcdsa) {
Reset(TlsAgent::kServerEcdsa256);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys(ssl_kea_ecdh, ssl_auth_ecdsa);
}
TEST_P(TlsConnectGeneric, ClientAuthWithEch) {
Reset(TlsAgent::kServerEcdsa256);
EnsureTlsSetup();
SetupEch(client_, server_);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys(ssl_kea_ecdh, ssl_auth_ecdsa);
}
TEST_P(TlsConnectGeneric, ClientAuthBigRsa) {
Reset(TlsAgent::kServerRsa, TlsAgent::kRsa2048);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys();
}
// Offset is the position in the captured buffer where the signature sits.
static void CheckSigScheme(std::shared_ptr<TlsHandshakeRecorder>& capture,
size_t offset, std::shared_ptr<TlsAgent>& peer,
uint16_t expected_scheme, size_t expected_size) {
EXPECT_LT(offset + 2U, capture->buffer().len());
uint32_t scheme = 0;
capture->buffer().Read(offset, 2, &scheme);
EXPECT_EQ(expected_scheme, static_cast<uint16_t>(scheme));
ScopedCERTCertificate remote_cert(SSL_PeerCertificate(peer->ssl_fd()));
ASSERT_NE(nullptr, remote_cert.get());
ScopedSECKEYPublicKey remote_key(CERT_ExtractPublicKey(remote_cert.get()));
ASSERT_NE(nullptr, remote_key.get());
EXPECT_EQ(expected_size, SECKEY_PublicKeyStrengthInBits(remote_key.get()));
}
// The server should prefer SHA-256 by default, even for the small key size used
// in the default certificate.
TEST_P(TlsConnectTls12, ServerAuthCheckSigAlg) {
EnsureTlsSetup();
auto capture_ske = MakeTlsFilter<TlsHandshakeRecorder>(
server_, kTlsHandshakeServerKeyExchange);
Connect();
CheckKeys();
const DataBuffer& buffer = capture_ske->buffer();
EXPECT_LT(3U, buffer.len());
EXPECT_EQ(3U, buffer.data()[0]) << "curve_type == named_curve";
uint32_t tmp;
EXPECT_TRUE(buffer.Read(1, 2, &tmp)) << "read NamedCurve";
EXPECT_EQ(ssl_grp_ec_curve25519, tmp);
EXPECT_TRUE(buffer.Read(3, 1, &tmp)) << " read ECPoint";
CheckSigScheme(capture_ske, 4 + tmp, client_, ssl_sig_rsa_pss_rsae_sha256,
1024);
}
TEST_P(TlsConnectTls12, ClientAuthCheckSigAlg) {
EnsureTlsSetup();
auto capture_cert_verify = MakeTlsFilter<TlsHandshakeRecorder>(
client_, kTlsHandshakeCertificateVerify);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys();
CheckSigScheme(capture_cert_verify, 0, server_, ssl_sig_rsa_pkcs1_sha1, 1024);
}
TEST_P(TlsConnectTls12, ClientAuthBigRsaCheckSigAlg) {
Reset(TlsAgent::kServerRsa, TlsAgent::kRsa2048);
auto capture_cert_verify = MakeTlsFilter<TlsHandshakeRecorder>(
client_, kTlsHandshakeCertificateVerify);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
Connect();
CheckKeys();
CheckSigScheme(capture_cert_verify, 0, server_, ssl_sig_rsa_pss_rsae_sha256,
2048);
}
// Replaces the signature scheme in a CertificateVerify message.
class TlsReplaceSignatureSchemeFilter : public TlsHandshakeFilter {
public:
TlsReplaceSignatureSchemeFilter(const std::shared_ptr<TlsAgent>& a,
SSLSignatureScheme scheme)
: TlsHandshakeFilter(a, {kTlsHandshakeCertificateVerify}),
scheme_(scheme) {}
protected:
virtual PacketFilter::Action FilterHandshake(const HandshakeHeader& header,
const DataBuffer& input,
DataBuffer* output) {
*output = input;
output->Write(0, scheme_, 2);
return CHANGE;
}
private:
SSLSignatureScheme scheme_;
};
// Check if CertificateVerify signed with rsa_pss_rsae_* is properly
// rejected when the certificate is RSA-PSS.
//
// This only works under TLS 1.2, because PSS doesn't work with TLS
// 1.0 or TLS 1.1 and the TLS 1.3 1-RTT handshake is partially
// successful at the client side.
TEST_P(TlsConnectTls12, ClientAuthInconsistentRsaeSignatureScheme) {
static const SSLSignatureScheme kSignatureSchemePss[] = {
ssl_sig_rsa_pss_pss_sha256, ssl_sig_rsa_pss_rsae_sha256};
Reset(TlsAgent::kServerRsa, "rsa_pss");
client_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
server_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
client_->SetupClientAuth();
server_->RequestClientAuth(true);
EnsureTlsSetup();
MakeTlsFilter<TlsReplaceSignatureSchemeFilter>(client_,
ssl_sig_rsa_pss_rsae_sha256);
ConnectExpectAlert(server_, kTlsAlertIllegalParameter);
}
// Check if CertificateVerify signed with rsa_pss_pss_* is properly
// rejected when the certificate is RSA.
//
// This only works under TLS 1.2, because PSS doesn't work with TLS
// 1.0 or TLS 1.1 and the TLS 1.3 1-RTT handshake is partially
// successful at the client side.
TEST_P(TlsConnectTls12, ClientAuthInconsistentPssSignatureScheme) {
static const SSLSignatureScheme kSignatureSchemePss[] = {
ssl_sig_rsa_pss_rsae_sha256, ssl_sig_rsa_pss_pss_sha256};
Reset(TlsAgent::kServerRsa, "rsa");
client_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
server_->SetSignatureSchemes(kSignatureSchemePss,
PR_ARRAY_SIZE(kSignatureSchemePss));
client_->SetupClientAuth();
server_->RequestClientAuth(true);
EnsureTlsSetup();
MakeTlsFilter<TlsReplaceSignatureSchemeFilter>(client_,
ssl_sig_rsa_pss_pss_sha256);
ConnectExpectAlert(server_, kTlsAlertIllegalParameter);
}
TEST_P(TlsConnectTls13, ClientAuthPkcs1SignatureScheme) {
static const SSLSignatureScheme kSignatureScheme[] = {
ssl_sig_rsa_pkcs1_sha256, ssl_sig_rsa_pss_rsae_sha256};
Reset(TlsAgent::kServerRsa, "rsa");
client_->SetSignatureSchemes(kSignatureScheme,
PR_ARRAY_SIZE(kSignatureScheme));
server_->SetSignatureSchemes(kSignatureScheme,
PR_ARRAY_SIZE(kSignatureScheme));
client_->SetupClientAuth();
server_->RequestClientAuth(true);
auto capture_cert_verify = MakeTlsFilter<TlsHandshakeRecorder>(
client_, kTlsHandshakeCertificateVerify);
capture_cert_verify->EnableDecryption();
Connect();
CheckSigScheme(capture_cert_verify, 0, server_, ssl_sig_rsa_pss_rsae_sha256,
1024);
}
// Client should refuse to connect without a usable signature scheme.
TEST_P(TlsConnectTls13, ClientAuthPkcs1SignatureSchemeOnly) {
static const SSLSignatureScheme kSignatureScheme[] = {
ssl_sig_rsa_pkcs1_sha256};
Reset(TlsAgent::kServerRsa, "rsa");
client_->SetSignatureSchemes(kSignatureScheme,
PR_ARRAY_SIZE(kSignatureScheme));
client_->SetupClientAuth();
client_->StartConnect();
client_->Handshake();
EXPECT_EQ(TlsAgent::STATE_ERROR, client_->state());
client_->CheckErrorCode(SSL_ERROR_NO_SUPPORTED_SIGNATURE_ALGORITHM);
}
// Though the client has a usable signature scheme, when a certificate is
// requested, it can't produce one.
TEST_P(TlsConnectTls13, ClientAuthPkcs1AndEcdsaScheme) {
static const SSLSignatureScheme kSignatureScheme[] = {
ssl_sig_rsa_pkcs1_sha256, ssl_sig_ecdsa_secp256r1_sha256};
Reset(TlsAgent::kServerRsa, "rsa");
client_->SetSignatureSchemes(kSignatureScheme,
PR_ARRAY_SIZE(kSignatureScheme));
client_->SetupClientAuth();
server_->RequestClientAuth(true);
ConnectExpectAlert(server_, kTlsAlertHandshakeFailure);
server_->CheckErrorCode(SSL_ERROR_UNSUPPORTED_SIGNATURE_ALGORITHM);
client_->CheckErrorCode(SSL_ERROR_NO_CYPHER_OVERLAP);
}
class TlsZeroCertificateRequestSigAlgsFilter : public TlsHandshakeFilter {
public:
TlsZeroCertificateRequestSigAlgsFilter(const std::shared_ptr<TlsAgent>& a)
: TlsHandshakeFilter(a, {kTlsHandshakeCertificateRequest}) {}
virtual PacketFilter::Action FilterHandshake(
const TlsHandshakeFilter::HandshakeHeader& header,
const DataBuffer& input, DataBuffer* output) {
TlsParser parser(input);
std::cerr << "Zeroing CertReq.supported_signature_algorithms" << std::endl;
DataBuffer cert_types;
if (!parser.ReadVariable(&cert_types, 1)) {
ADD_FAILURE();
return KEEP;
}
if (!parser.SkipVariable(2)) {
ADD_FAILURE();
return KEEP;
}
DataBuffer cas;
if (!parser.ReadVariable(&cas, 2)) {
ADD_FAILURE();
return KEEP;
}
size_t idx = 0;
// Write certificate types.
idx = output->Write(idx, cert_types.len(), 1);
idx = output->Write(idx, cert_types);
// Write zero signature algorithms.
idx = output->Write(idx, 0U, 2);
// Write certificate authorities.
idx = output->Write(idx, cas.len(), 2);
idx = output->Write(idx, cas);
return CHANGE;
}
};
// Check that we send an alert when the server doesn't provide any
// supported_signature_algorithms in the CertificateRequest message.
TEST_P(TlsConnectTls12, ClientAuthNoSigAlgs) {
EnsureTlsSetup();
MakeTlsFilter<TlsZeroCertificateRequestSigAlgsFilter>(server_);
auto capture_cert_verify = MakeTlsFilter<TlsHandshakeRecorder>(
client_, kTlsHandshakeCertificateVerify);
client_->SetupClientAuth();
server_->RequestClientAuth(true);
ConnectExpectAlert(client_, kTlsAlertHandshakeFailure);
server_->CheckErrorCode(SSL_ERROR_HANDSHAKE_FAILURE_ALERT);
client_->CheckErrorCode(SSL_ERROR_UNSUPPORTED_SIGNATURE_ALGORITHM);
}
static SECStatus GetEcClientAuthDataHook(void* self, PRFileDesc* fd,
CERTDistNames* caNames,
CERTCertificate** clientCert,
SECKEYPrivateKey** clientKey) {
ScopedCERTCertificate cert;
ScopedSECKEYPrivateKey priv;
// use a different certificate than TlsAgent::kClient
if (!TlsAgent::LoadCertificate(TlsAgent::kServerEcdsa256, &cert, &priv)) {
return SECFailure;
}
*clientCert = cert.release();
*clientKey = priv.release();
return SECSuccess;
}
TEST_P(TlsConnectTls12Plus, ClientAuthDisjointSchemes) {
EnsureTlsSetup();
client_->SetupClientAuth();
server_->RequestClientAuth(true);
SSLSignatureScheme server_scheme = ssl_sig_rsa_pss_rsae_sha256;
std::vector<SSLSignatureScheme> client_schemes{
ssl_sig_rsa_pss_rsae_sha256, ssl_sig_ecdsa_secp256r1_sha256};
SECStatus rv =
SSL_SignatureSchemePrefSet(server_->ssl_fd(), &server_scheme, 1);
EXPECT_EQ(SECSuccess, rv);
rv = SSL_SignatureSchemePrefSet(
client_->ssl_fd(), client_schemes.data(),
static_cast<unsigned int>(client_schemes.size()));
EXPECT_EQ(SECSuccess, rv);
// Select an EC cert that's incompatible with server schemes.
EXPECT_EQ(SECSuccess,
SSL_GetClientAuthDataHook(client_->ssl_fd(),
GetEcClientAuthDataHook, nullptr));
StartConnect();
client_->Handshake(); // CH
server_->Handshake(); // SH
client_->Handshake();
if (version_ >= SSL_LIBRARY_VERSION_TLS_1_3) {
ASSERT_EQ(TlsAgent::STATE_CONNECTED, client_->state());
ExpectAlert(server_, kTlsAlertCertificateRequired);
server_->Handshake(); // Alert
server_->CheckErrorCode(SSL_ERROR_NO_CERTIFICATE);
client_->Handshake(); // Receive Alert
client_->CheckErrorCode(SSL_ERROR_RX_CERTIFICATE_REQUIRED_ALERT);
} else {
ASSERT_EQ(TlsAgent::STATE_CONNECTING, client_->state());
ExpectAlert(server_, kTlsAlertBadCertificate);
server_->Handshake(); // Alert
server_->CheckErrorCode(SSL_ERROR_NO_CERTIFICATE);
client_->Handshake(); // Receive Alert
client_->CheckErrorCode(SSL_ERROR_BAD_CERT_ALERT);
}
}
TEST_F(TlsConnectStreamTls13, PostHandshakeAuthDisjointSchemes) {
EnsureTlsSetup();
SSLSignatureScheme server_scheme = ssl_sig_rsa_pss_rsae_sha256;
std::vector<SSLSignatureScheme> client_schemes{
ssl_sig_rsa_pss_rsae_sha256, ssl_sig_ecdsa_secp256r1_sha256};
SECStatus rv =
SSL_SignatureSchemePrefSet(server_->ssl_fd(), &server_scheme, 1);
EXPECT_EQ(SECSuccess, rv);
rv = SSL_SignatureSchemePrefSet(
client_->ssl_fd(), client_schemes.data(),
static_cast<unsigned int>(client_schemes.size()));
EXPECT_EQ(SECSuccess, rv);
client_->SetupClientAuth();
client_->SetOption(SSL_ENABLE_POST_HANDSHAKE_AUTH, PR_TRUE);