Move from SHA-1 to SHA-256 as default in programs
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index 3b67f65..f936097 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -149,7 +149,7 @@
      * Set to sane values
      */
     x509write_csr_init( &req );
-    x509write_csr_set_md_alg( &req, POLARSSL_MD_SHA1 );
+    x509write_csr_set_md_alg( &req, POLARSSL_MD_SHA256 );
     pk_init( &key );
     memset( buf, 0, sizeof( buf ) );