Fix crash in CreateCert

fixes #7862

diff --git a/lib/base/tlsutility.cpp b/lib/base/tlsutility.cpp
index e2978aa12dd6f80f5cda22a597af1d2ac4cccb5d..b4d96ecfd55fcd39998c5d5b90f231d11dd54ce9 100644 (file)
--- a/lib/base/tlsutility.cpp
+++ b/lib/base/tlsutility.cpp
@@ -412,7 +412,7 @@ boost::shared_ptr<X509> CreateCert(EVP_PKEY *pubkey, X509_NAME *subject, X509_NA
                X509_EXTENSION_free(ext);
        }
 
-       X509_sign(cert, cakey, NULL);
+       X509_sign(cert, cakey, EVP_sha256());
 
        return boost::shared_ptr<X509>(cert, X509_free);
 }