Add OIDs for brainpool curves
diff --git a/tests/data_files/ec_bp256_prv.pem b/tests/data_files/ec_bp256_prv.pem
new file mode 100644
index 0000000..9d6a867
--- /dev/null
+++ b/tests/data_files/ec_bp256_prv.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHgCAQEEICFh1vLbdlJvpiwW81aoDwHzL3dnhLNqqZeZqLdmIID/oAsGCSskAwMC
+CAEBB6FEA0IABHaMjK5KvKYwbbDtgbDEpiFcN4Bm7G1hbBRuE/HH34CblqtpEcJ9
+igIznwkmhA5VI209HvviZp0JDkxMZg+tqR0=
+-----END EC PRIVATE KEY-----