diff --git a/source/src/command.cpp b/source/src/command.cpp
index 1f527ae0..47ad7de9 100644
--- a/source/src/command.cpp
+++ b/source/src/command.cpp
@@ -784,6 +784,11 @@ bool exechook(int context, const char *ident, const char *body,...)  // execute
     return false;
 }
 
+void identhash(uint64_t *d)
+{
+    enumerate(*idents, ident, id, if(id.type == ID_COMMAND || id.type == ID_VAR) { *d ^= id.type == ID_VAR ? (size_t)"" - (size_t)id.name : (size_t)identhash - (size_t)id.fun; *d *= 16777619; });
+}
+
 // tab-completion of all idents
 // always works at the end of the command line - the cursor position does not matter
 
diff --git a/source/src/crypto.cpp b/source/src/crypto.cpp
index 42102b93..ffa66b04 100644
--- a/source/src/crypto.cpp
+++ b/source/src/crypto.cpp
@@ -3,7 +3,7 @@
 #ifdef STANDALONE
 #define DEBUGCOND (true)
 #else
-VARP(cryptodebug, 0, 0, 1);
+VARP(cryptodebug, 0, 1, 1);
 #define DEBUGCOND (cryptodebug==1)
 #endif
 
@@ -159,6 +159,12 @@ namespace tiger
         lilswap(val.chunks, 3);
     }
 }
+
+void tigerhash(uchar *hash, const uchar *msg, int len)
+{
+    tiger::hash(msg, len, *((tiger::hashval *) hash));
+}
+
 #undef sb1
 #undef sb2
 #undef sb3
diff --git a/source/src/protos.h b/source/src/protos.h
index 5ef5c3f6..7973f7b9 100644
--- a/source/src/protos.h
+++ b/source/src/protos.h
@@ -939,6 +939,8 @@ extern const char *fullmodestr(int n);
 extern int defaultgamelimit(int gamemode);
 
 // crypto
+#define TIGERHASHSIZE 24
+extern void tigerhash(uchar *hash, const uchar *msg, int len);
 extern void loadcertdir();     // load all certs in "config/certs"
 #if 0
 // crypto // for AUTH
@@ -970,6 +972,7 @@ extern bool addcommand(const char *name, void (*fun)(), const char *sig);
 extern int execute(const char *p);
 enum { HOOK_SP_MP = 1, HOOK_SP, HOOK_MP, HOOK_FLAGMASK = 0xff, HOOK_TEAM = 0x100, HOOK_NOTEAM = 0x200, HOOK_BOTMODE = 0x400, HOOK_FLAGMODE = 0x800, HOOK_ARENA = 0x1000 };
 extern bool exechook(int context, const char *ident, const char *body,...) PRINTFARGS(3, 4);  // execute cubescript hook if available and allowed in current context/gamemode
+extern void identhash(uint64_t *d);
 extern char *executeret(const char *p);
 extern char *conc(const char **w, int n, bool space);
 extern void intret(int v);
diff --git a/source/src/serverfiles.h b/source/src/serverfiles.h
index 14454596..7a39ab1a 100644
--- a/source/src/serverfiles.h
+++ b/source/src/serverfiles.h
@@ -21,6 +21,7 @@ struct servermap  // in-memory version of a map file on a server
 {
     const char *fname, *fpath;      // map name and path (fname has to be first member of this struct! hardcoded!)
     uchar *cgzraw, *cfgrawgz;       // direct copies of the cgz and cfg files (cfg is already gzipped)
+    uchar cgzhash[TIGERHASHSIZE], cfghash[TIGERHASHSIZE];
     int cgzlen, cfglen, cfggzlen;   // file lengths and cfg-gz length
 
     int version, headersize, sfactor, numents, maprevision, waterlevel;  // from map header
@@ -65,11 +66,13 @@ struct servermap  // in-memory version of a map file on a server
         uchar *cfgraw = (uchar *)loadfile(filename, &cfglen);
         if(cfgraw)
         {
+            tigerhash(cfghash, cfgraw, cfglen);
             loopk(cfglen) if(cfgraw[k] > 0x7f || (cfgraw[k] < 0x20 && !isspace(cfgraw[k]))) err = "illegal chars in cfg file";
         }
         formatstring(filename)("%s%s.cgz", fpath, fname);
         path(filename);
         cgzraw = (uchar *)loadfile(filename, &cgzlen);
+        if(cgzraw) tigerhash(cgzhash, cgzraw, cgzlen);
         if(!cgzraw) err = "loading cgz failed";
         else if(cfglen > MAXCFGFILESIZE) err = "cfg file too big";
         else if(cgzlen >= MAXMAPSENDSIZE) err = "cgz file too big";