diff --git a/README.md b/README.md
index 8f481db..097548c 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ Here it is described the message structure for each
 +---------------------------------------------------------------------------------------+
 | 0 Padding 64 - n                                                                      |
 +---------------------------------------------------------------------------------------+
-| Signature up to-512 bits                                                              |
+| Signature - arbitrary number of bit                                                   |
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