diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 8ab7452c7..85f8d9687 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "204"
+#define VERSION_REVISION "205"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
@@ -45,6 +45,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define RTMP_SIG_SRS_COPYRIGHT "Copyright (c) 2013-2014 winlin"
 #define RTMP_SIG_SRS_PRIMARY_AUTHROS "winlin,wenjie.zhao"
 #define RTMP_SIG_SRS_CONTRIBUTORS_URL RTMP_SIG_SRS_URL"/blob/master/AUTHORS.txt"
+#define RTMP_SIG_SRS_HANDSHAKE RTMP_SIG_SRS_KEY"("RTMP_SIG_SRS_VERSION")"
 
 /**
 * the core provides the common defined macros, utilities,
diff --git a/trunk/src/rtmp/srs_protocol_handshake.cpp b/trunk/src/rtmp/srs_protocol_handshake.cpp
index 67b1cb0f7..0ffa0c08a 100644
--- a/trunk/src/rtmp/srs_protocol_handshake.cpp
+++ b/trunk/src/rtmp/srs_protocol_handshake.cpp
@@ -343,6 +343,7 @@ namespace _srs_internal
         if (key->random0_size > 0) {
             key->random0 = new char[key->random0_size];
             srs_random_generate(key->random0, key->random0_size);
+            snprintf(key->random0, key->random0_size, "%s", RTMP_SIG_SRS_HANDSHAKE);
         }
         
         srs_random_generate(key->key, sizeof(key->key));
@@ -351,6 +352,7 @@ namespace _srs_internal
         if (key->random1_size > 0) {
             key->random1 = new char[key->random1_size];
             srs_random_generate(key->random1, key->random1_size);
+            snprintf(key->random1, key->random1_size, "%s", RTMP_SIG_SRS_HANDSHAKE);
         }
     }
     
@@ -435,6 +437,7 @@ namespace _srs_internal
         if (digest->random0_size > 0) {
             digest->random0 = new char[digest->random0_size];
             srs_random_generate(digest->random0, digest->random0_size);
+            snprintf(digest->random0, digest->random0_size, "%s", RTMP_SIG_SRS_HANDSHAKE);
         }
         
         srs_random_generate(digest->digest, sizeof(digest->digest));
@@ -443,6 +446,7 @@ namespace _srs_internal
         if (digest->random1_size > 0) {
             digest->random1 = new char[digest->random1_size];
             srs_random_generate(digest->random1, digest->random1_size);
+            snprintf(digest->random1, digest->random1_size, "%s", RTMP_SIG_SRS_HANDSHAKE);
         }
     }
 
@@ -621,6 +625,11 @@ namespace _srs_internal
     c2s2::c2s2()
     {
         srs_random_generate(random, 1504);
+        
+        int size = snprintf(random, 1504, "%s", RTMP_SIG_SRS_HANDSHAKE);
+        srs_assert(++size < 1504);
+        snprintf(random + 1504 - size, size, "%s", RTMP_SIG_SRS_HANDSHAKE);
+        
         srs_random_generate(digest, 32);
     }
     
diff --git a/trunk/src/rtmp/srs_protocol_utility.cpp b/trunk/src/rtmp/srs_protocol_utility.cpp
index c931ca2f3..ccf99b8d5 100644
--- a/trunk/src/rtmp/srs_protocol_utility.cpp
+++ b/trunk/src/rtmp/srs_protocol_utility.cpp
@@ -102,14 +102,9 @@ void srs_random_generate(char* bytes, int size)
         srs_trace("srand initialized the random.");
     }
     
-    static char cdata[]  = { 
-        0x73, 0x69, 0x6d, 0x70, 0x6c, 0x65, 0x2d, 0x72, 0x74, 0x6d, 0x70, 0x2d, 0x73, 0x65, 
-        0x72, 0x76, 0x65, 0x72, 0x2d, 0x77, 0x69, 0x6e, 0x6c, 0x69, 0x6e, 0x2d, 0x77, 0x69, 
-        0x6e, 0x74, 0x65, 0x72, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x40, 0x31, 0x32, 0x36, 
-        0x2e, 0x63, 0x6f, 0x6d
-    };
     for (int i = 0; i < size; i++) {
-        bytes[i] = cdata[rand() % (sizeof(cdata) - 1)];
+        // the common value in [0x0f, 0xf0]
+        bytes[i] = 0x0f + (rand() % (256 - 0x0f - 0x0f));
     }
 }