[PATCH 2/9] unit: Add basic EC-DSA verification test

[Denis Kenzior <denkenz@gmail.com>]

---
 .gitignore      |  2 ++
 Makefile.am     | 39 ++++++++++++++++++++++++++++++++++++++-
 unit/test-tls.c | 22 +++++++++++++++++++++-
 3 files changed, 61 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 346243a8f9c7..76f10aecfdd3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,6 +67,8 @@ unit/cert-*.csr
 unit/cert-*.srl
 unit/cert-*.crt
 unit/cert-*.p12
+unit/ec-cert-*.pem
+unit/ec-cert-*.csr
 unit/key-*.dat
 unit/key-*.h
 unit/*.log
diff --git a/Makefile.am b/Makefile.am
index 2bf728bbde7a..e5d7143af236 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -219,6 +219,7 @@ cert_tests = unit/test-pem \
 cert_files = unit/cert-chain.pem \
 			unit/cert-entity-int.pem \
 			unit/cert-server.pem \
+			unit/ec-cert-server.pem \
 			unit/cert-server-key-pkcs8.pem \
 			unit/cert-client.pem \
 			unit/cert-client.crt \
@@ -246,6 +247,7 @@ cert_files = unit/cert-chain.pem \
 cert_checks = unit/cert-intca \
 			unit/cert-entity-int \
 			unit/cert-server \
+			unit/ec-cert-server \
 			unit/cert-client \
 			unit/cert-no-keyid
 
@@ -417,15 +419,30 @@ false_redirect_openssl = 2>/dev/null
 unit/cert-ca-key.pem:
 	$(AM_V_GEN)openssl genrsa -out $@ 2048 $($(AM_V_P)_redirect_openssl)
 
+unit/ec-cert-ca-key.pem:
+	$(AM_V_GEN)openssl ecparam -out $@ -name secp384r1 \
+				-genkey $($(AM_V_P)_redirect_openssl)
+
+
 unit/cert-ca.pem: unit/cert-ca-key.pem unit/gencerts.cnf
 	$(AM_V_GEN)openssl req -x509 -new -nodes -extensions ca_ext \
 			-config $(srcdir)/unit/gencerts.cnf \
 			-subj '/O=International Union of Example Organizations/CN=Certificate issuer guy/emailAddress=ca@mail.example' \
 			-key $< -sha256 -days 10000 -out $@
 
+unit/ec-cert-ca.pem: unit/ec-cert-ca-key.pem unit/gencerts.cnf
+	$(AM_V_GEN)openssl req -x509 -new -nodes -extensions ca_ext \
+			-config $(srcdir)/unit/gencerts.cnf \
+			-subj '/O=International Union of Example Organizations/CN=Certificate issuer guy/emailAddress=ca@mail.example' \
+			-key $< -sha256 -days 10000 -out $@
+
 unit/cert-server-key.pem:
 	$(AM_V_GEN)openssl genrsa -out $@ $($(AM_V_P)_redirect_openssl)
 
+unit/ec-cert-server-key.pem:
+	$(AM_V_GEN)openssl ecparam -out $@ -name secp384r1 \
+				-genkey $($(AM_V_P)_redirect_openssl)
+
 unit/cert-server-key-pkcs8.pem: unit/cert-server-key.pem
 	$(AM_V_GEN)openssl pkcs8 -topk8 -nocrypt -in $< -out $@
 
@@ -435,6 +452,12 @@ unit/cert-server.csr: unit/cert-server-key.pem unit/gencerts.cnf
 			-subj '/O=Foo Example Organization/CN=Foo Example Organization/emailAddress=foo@mail.example' \
 			-key $< -out $@
 
+unit/ec-cert-server.csr: unit/ec-cert-server-key.pem unit/gencerts.cnf
+	$(AM_V_GEN)openssl req -new -extensions cert_ext \
+			-config $(srcdir)/unit/gencerts.cnf \
+			-subj '/O=Foo Example Organization/CN=Foo Example Organization/emailAddress=foo@mail.example' \
+			-key $< -out $@
+
 unit/cert-server.pem: unit/cert-server.csr unit/cert-ca.pem unit/gencerts.cnf
 	$(AM_V_GEN)openssl x509 -req -extensions server_ext \
 			-extfile $(srcdir)/unit/gencerts.cnf \
@@ -443,9 +466,22 @@ unit/cert-server.pem: unit/cert-server.csr unit/cert-ca.pem unit/gencerts.cnf
 			-CAserial $(builddir)/unit/cert-ca.srl \
 			-CAcreateserial -sha256 -days 10000 -out $@ $($(AM_V_P)_redirect_openssl)
 
+unit/ec-cert-server.pem: unit/ec-cert-server.csr unit/ec-cert-ca.pem \
+				unit/gencerts.cnf
+	$(AM_V_GEN)openssl x509 -req -extensions server_ext \
+			-extfile $(srcdir)/unit/gencerts.cnf \
+			-in $< -CA $(builddir)/unit/ec-cert-ca.pem \
+			-CAkey $(builddir)/unit/ec-cert-ca-key.pem \
+			-CAserial $(builddir)/unit/cert-ca.srl \
+			-CAcreateserial -sha256 -days 10000 \
+			-out $@ $($(AM_V_P)_redirect_openssl)
+
 unit/cert-server: unit/cert-server.pem unit/cert-ca.pem
 	$(AM_V_GEN)openssl verify -CAfile $(builddir)/unit/cert-ca.pem $<
 
+unit/ec-cert-server: unit/ce-cert-server.pem unit/ce-cert-ca.pem
+	$(AM_V_GEN)openssl verify -CAfile $(builddir)/unit/ce-cert-ca.pem $<
+
 unit/cert-client-key-pkcs1.pem:
 	$(AM_V_GEN)openssl genrsa -out $@ $($(AM_V_P)_redirect_openssl)
 
@@ -623,7 +659,8 @@ check-local: $(cert_checks)
 endif
 
 clean-local:
-	-rm -f unit/cert-*.pem unit/cert-*.csr unit/cert-*.srl unit/key-*.dat
+	-rm -f unit/ec-cert*.pem unit/ec-cert-*.csr \
+		unit/cert-*.pem unit/cert-*.csr unit/cert-*.srl unit/key-*.dat
 
 maintainer-clean-local:
 	-rm -rf build-aux
diff --git a/unit/test-tls.c b/unit/test-tls.c
index 7937962cf8a0..aee5b2e36b78 100644
--- a/unit/test-tls.c
+++ b/unit/test-tls.c
@@ -325,6 +325,24 @@ static void test_certificates(const void *data)
 	l_queue_destroy(twocas, (l_queue_destroy_func_t) l_cert_free);
 }
 
+static void test_ec_certificates(const void *data)
+{
+	struct l_queue *cacert;
+	struct l_certchain *chain;
+
+	cacert = l_pem_load_certificate_list(CERTDIR "ec-cert-ca.pem");
+	assert(cacert && !l_queue_isempty(cacert));
+
+	chain = l_pem_load_certificate_chain(CERTDIR "ec-cert-server.pem");
+	assert(chain);
+
+	assert(l_certchain_verify(chain, cacert, NULL));
+	assert(l_certchain_verify(chain, NULL, NULL));
+
+	l_certchain_free(chain);
+	l_queue_destroy(cacert, (l_queue_destroy_func_t) l_cert_free);
+}
+
 struct tls_conn_test {
 	const char *server_cert_path;
 	const char *server_key_path;
@@ -948,8 +966,10 @@ int main(int argc, char *argv[])
 	l_test_add("TLS 1.2 PRF with SHA512", test_tls12_prf,
 			&tls12_prf_sha512_0);
 
-	if (l_key_is_supported(L_KEY_FEATURE_RESTRICT))
+	if (l_key_is_supported(L_KEY_FEATURE_RESTRICT)) {
 		l_test_add("Certificate chains", test_certificates, NULL);
+		l_test_add("ECDSA Certificates", test_ec_certificates, NULL);
+	}
 
 	if (!l_getrandom_is_supported()) {
 		printf("getrandom missing, skipping TLS connection tests...\n");
-- 
2.35.1