Index: openacs-4/packages/xooauth/tcl/oauth-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xooauth/tcl/oauth-procs.tcl,v
diff -u -r1.1.2.1 -r1.1.2.2
--- openacs-4/packages/xooauth/tcl/oauth-procs.tcl	7 Nov 2020 17:58:25 -0000	1.1.2.1
+++ openacs-4/packages/xooauth/tcl/oauth-procs.tcl	10 Nov 2020 08:44:57 -0000	1.1.2.2
@@ -273,7 +273,7 @@
                                        -binary \
                                        -digest sha1 \
                                        -encoding base64 \
-                                       $hmac_sha1_key $base_string]
+                                       $hmac_sha1_key $signature_base_string]
 
     # FIXME - TODO: It seems, as if the LTI tool provider under
     # http://www.imsglobal.org/developers/BLTI/tool.php does not accept a URL-encoded
@@ -544,7 +544,7 @@
       #return [::xowiki::utility urlencode $s]
       return [::xo::oauth::utility urlencode $s]
     }
-  
+
     #
     # Protocol Parameters
     #