Make sure to reject a 32 byte message

1 files changed, 8 insertions, 1 deletions

diff --git a/oae2.go b/oae2.go
index e2bb1c1..ff59b76 100644
--- a/oae2.go
+++ b/oae2.go
@@ -306,7 +306,14 @@ func (r *Reader) initialize() error {
 	}
 	// Decrypt the first segment now to make sure we validate the
 	// additional data
-	return r.fillBuf()
+	if err := r.fillBuf(); err != nil {
+		if err == io.EOF {
+			r.err = io.ErrUnexpectedEOF
+			return r.err
+		}
+		return err
+	}
+	return nil
 }
 
 func (r *Reader) init() error {