private-key: Add optional parameters argument to sign() method

src/libstrongswan/plugins/x509/x509_ac.c

@@ -763,7 +763,7 @@ static bool build_ac(private_x509_ac_t *this)
 	chunk_t signatureValue, attributeCertificateInfo;
 
 	attributeCertificateInfo = build_attr_cert_info(this);
-	if (!this->signerKey->sign(this->signerKey, SIGN_RSA_EMSA_PKCS1_SHA1,
+	if (!this->signerKey->sign(this->signerKey, SIGN_RSA_EMSA_PKCS1_SHA1, NULL,
 							   attributeCertificateInfo, &signatureValue))
 	{
 		free(attributeCertificateInfo.ptr);

src/libstrongswan/plugins/x509/x509_cert.c

@@ -2562,7 +2562,8 @@ static bool generate(private_x509_cert_t *cert, certificate_t *sign_cert,
 		subject->get_encoding(subject),
 		key_info, extensions);
 
-	if (!sign_key->sign(sign_key, scheme, cert->tbsCertificate, &cert->signature))
+	if (!sign_key->sign(sign_key, scheme, NULL, cert->tbsCertificate,
+						&cert->signature))
 	{
 		return FALSE;
 	}

src/libstrongswan/plugins/x509/x509_crl.c

@@ -787,7 +787,7 @@ static bool generate(private_x509_crl_t *this, certificate_t *cert,
 							asn1_wrap(ASN1_SEQUENCE, "m", certList),
 							extensions);
 
-	if (!key->sign(key, signature_scheme_from_oid(this->algorithm),
+	if (!key->sign(key, signature_scheme_from_oid(this->algorithm), NULL,
 				   this->tbsCertList, &this->signature))
 	{
 		return FALSE;

src/libstrongswan/plugins/x509/x509_ocsp_request.c

@@ -276,7 +276,7 @@ static chunk_t build_optionalSignature(private_x509_ocsp_request_t *this,
 			return chunk_empty;
 	}
 
-	if (!this->key->sign(this->key, scheme, tbsRequest, &signature))
+	if (!this->key->sign(this->key, scheme, NULL, tbsRequest, &signature))
 	{
 		DBG1(DBG_LIB, "creating OCSP signature failed, skipped");
 		return chunk_empty;

src/libstrongswan/plugins/x509/x509_pkcs10.c

@@ -584,7 +584,7 @@ static bool generate(private_x509_pkcs10_t *cert, private_key_t *sign_key,
 							key_info,
 							attributes);
 
-	if (!sign_key->sign(sign_key, scheme, cert->certificationRequestInfo,
+	if (!sign_key->sign(sign_key, scheme, NULL, cert->certificationRequestInfo,
 						&cert->signature))
 	{
 		return FALSE;