Index: /applications/editors/josm/plugins/trustosm/src/org/openstreetmap/josm/plugins/trustosm/io/SigReader.java
===================================================================
--- /applications/editors/josm/plugins/trustosm/src/org/openstreetmap/josm/plugins/trustosm/io/SigReader.java	(revision 34154)
+++ /applications/editors/josm/plugins/trustosm/src/org/openstreetmap/josm/plugins/trustosm/io/SigReader.java	(revision 34155)
@@ -21,4 +21,5 @@
 import org.bouncycastle.openpgp.PGPObjectFactory;
 import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.operator.bc.BcKeyFingerprintCalculator;
 import org.openstreetmap.josm.data.osm.Node;
 import org.openstreetmap.josm.data.osm.OsmPrimitive;
@@ -161,5 +162,5 @@
 
             ArmoredInputStream aIn = new ArmoredInputStream(new ByteArrayInputStream(clearsigned.getBytes(Charset.forName("UTF-8"))));
-            PGPObjectFactory pgpFact = new PGPObjectFactory(aIn);
+            PGPObjectFactory pgpFact = new PGPObjectFactory(aIn, new BcKeyFingerprintCalculator());
             // read plain text
             ByteArrayOutputStream bout = new ByteArrayOutputStream();