put keysig stuff into extra source

include/Makefile.am

@@ -20,6 +20,7 @@ PCPEXPORT = pcp.h \
             pcp/ed.h \
 	    pcp/base85.h \
             pcp/buffer.h \
-            pcp/mgmt.h
+            pcp/mgmt.h \
+            pcp/keysig.h
 
 nobase_include_HEADERS = $(PCPEXPORT)

include/pcp/keysig.h

@@ -0,0 +1,59 @@
+/*
+    This file is part of Pretty Curved Privacy (pcp1).
+
+    Copyright (C) 2013-2014 T.v.Dein.
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    You can contact me by mail: <tom AT vondein DOT org>.
+*/
+
+
+#ifndef _HAVE_PCP_KEYSIG_H
+#define _HAVE_PCP_KEYSIG_H
+
+#include <string.h>
+#include <stdio.h>
+
+#include "defines.h"
+#include "platform.h"
+#include "mem.h"
+#include "buffer.h"
+#include "key.h"
+
+#define PCP_RAW_KEYSIGSIZE sizeof(pcp_keysig_t) - sizeof(UT_hash_handle)
+
+/* holds a public key signature */
+struct _pcp_keysig_t {
+  uint8_t type;
+  uint32_t size;
+  char belongs[17];
+  byte checksum[32];
+  byte *blob;
+  UT_hash_handle hh;
+};
+
+typedef struct _pcp_keysig_t pcp_keysig_t;
+
+pcp_keysig_t *keysig2be(pcp_keysig_t *s);
+pcp_keysig_t *keysig2native(pcp_keysig_t *s);
+
+/* put a keysig into a buffer, convert to big endian while at it */
+Buffer *pcp_keysig2blob(pcp_keysig_t *s);
+
+/* fetch a keysig from a buffer, usually loaded from vault */
+pcp_keysig_t *pcp_keysig_new(Buffer *blob);
+
+
+#endif /*  _HAVE_PCP_KEYSIG_H */