diff --git a/trunk/src/main/srs_main_server.cpp b/trunk/src/main/srs_main_server.cpp
index fe7b17c85..6e589381a 100644
--- a/trunk/src/main/srs_main_server.cpp
+++ b/trunk/src/main/srs_main_server.cpp
@@ -222,12 +222,28 @@ void show_macro_features()
 #endif
 }
 
+#include <srs_rtmp_handshake.hpp>
 /**
 * main entrance.
 */
 int main(int argc, char** argv) 
 {
     int ret = ERROR_SUCCESS;
+    
+    _srs_internal::SrsDH dh;
+    dh.initialize();
+    
+    char key[128]; int nb_key = 128;
+    dh.copy_public_key(key, nb_key);
+    for (int i = 0; i < nb_key; i++) {
+        printf("%#x, ", (unsigned char)key[i]);
+        if (((i+1) %16) == 0) {
+            printf("\n");
+        }
+    }
+    
+    printf("\n");
+    exit(0);
 
     // TODO: support both little and big endian.
     srs_assert(srs_is_little_endian());
diff --git a/trunk/src/protocol/srs_rtmp_handshake.cpp b/trunk/src/protocol/srs_rtmp_handshake.cpp
index 07c475875..e240523e3 100644
--- a/trunk/src/protocol/srs_rtmp_handshake.cpp
+++ b/trunk/src/protocol/srs_rtmp_handshake.cpp
@@ -532,7 +532,7 @@ namespace _srs_internal
             return ret;
         }
 
-        // altough the public key is always 128bytes, but the share key maybe not.
+        // although the public key is always 128bytes, but the share key maybe not.
         // we just ignore the actual key size, but if need to use the key, must use the actual size.
         // TODO: FIXME: use the actual key size.
         //srs_assert(pkey_size == 128);