diff --git a/trunk/src/core/srs_core_complex_handshake.cpp b/trunk/src/core/srs_core_complex_handshake.cpp
index 3594c8d8b..0966501fb 100755
--- a/trunk/src/core/srs_core_complex_handshake.cpp
+++ b/trunk/src/core/srs_core_complex_handshake.cpp
@@ -23,7 +23,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_core_complex_handshake.hpp>
 
+#include <time.h>
+#include <stdlib.h>
+
 #include <srs_core_error.hpp>
+#include <srs_core_log.hpp>
 
 SrsComplexHandshake::SrsComplexHandshake()
 {
@@ -33,9 +37,139 @@ SrsComplexHandshake::~SrsComplexHandshake()
 {
 }
 
-int SrsComplexHandshake::handshake(SrsSocket& skt, char* c1)
+/**
+* 764bytes key结构
+* 	random-data: (offset)bytes
+* 	key-data: 128bytes
+* 	random-data: (764-offset-128-4)bytes
+* 	offset: 4bytes
+*/
+struct key_block
+{
+	// (offset)bytes
+	char* random0;
+	int random0_size;
+	
+	// 128bytes
+	char key[128];
+	
+	// (764-offset-128-4)bytes
+	char* random1;
+	int random1_size;
+	
+	// 4bytes
+	int32_t offset;
+};
+void srs_key_block_init(key_block* key)
+{
+}
+void srs_key_block_free(key_block* key)
+{
+}
+
+/**
+* 764bytes digest结构
+* 	offset: 4bytes
+* 	random-data: (offset)bytes
+* 	digest-data: 32bytes
+* 	random-data: (764-4-offset-32)bytes
+*/
+struct digest_block
+{
+	// 4bytes
+	int32_t offset;
+	
+	// (offset)bytes
+	char* random0;
+	int random0_size;
+	
+	// 32bytes
+	char digest[32];
+	
+	// (764-4-offset-32)bytes
+	char* random1;
+	int random1_size;
+};
+void srs_digest_block_init(digest_block* digest)
+{
+}
+void srs_digest_block_free(digest_block* digest)
+{
+}
+
+/**
+* c1s1 schema0
+* 	time: 4bytes
+* 	version: 4bytes
+* 	key: 764bytes
+* 	digest: 764bytes
+* c1s1 schema1
+* 	time: 4bytes
+* 	version: 4bytes
+* 	digest: 764bytes
+* 	key: 764bytes
+*/
+struct c1s1
+{
+	enum schema_type {
+		schema0 = 0, 
+		schema1 = 1
+	};
+	union block {
+		key_block key; 
+		digest_block digest; 
+	};
+	
+	// 4bytes
+	int32_t time;
+	// 4bytes
+	int32_t version;
+	// 764bytes
+	// if schema0, use key
+	// if schema1, use digest
+	block block0;
+	// 764bytes
+	// if schema0, use digest
+	// if schema1, use key
+	block block1;
+	
+	// the logic schema
+	schema_type schema;
+	
+	c1s1()
+	{
+		time = ::time(NULL);
+		version = 0x00;
+		
+		schema = c1s1::schema0;
+		srs_key_block_init(&block0.key);
+		srs_digest_block_init(&block1.digest);
+	}
+	virtual ~c1s1()
+	{
+		if (schema == c1s1::schema0) {
+			srs_key_block_free(&block0.key);
+			srs_digest_block_free(&block1.digest);
+		} else {
+			srs_digest_block_free(&block0.digest);
+			srs_key_block_free(&block1.key);
+		}
+	}
+};
+
+int SrsComplexHandshake::handshake(SrsSocket& skt, char* _c1)
 {
 	int ret = ERROR_SUCCESS;
+	
+	static bool _random_initialized = false;
+	if (!_random_initialized) {
+		srand(0);
+		_random_initialized = true;
+		srs_trace("srand initialized the random.");
+	}
+	
+	c1s1 c1;
+	
 	return ret;
 }
 
diff --git a/trunk/src/core/srs_core_complex_handshake.hpp b/trunk/src/core/srs_core_complex_handshake.hpp
index 20775cf09..5ed6c2df6 100755
--- a/trunk/src/core/srs_core_complex_handshake.hpp
+++ b/trunk/src/core/srs_core_complex_handshake.hpp
@@ -45,14 +45,14 @@ public:
 public:
 	/**
 	* complex hanshake.
-	* @c1, size of c1 must be 1536.
+	* @_c1, size of c1 must be 1536.
 	* @remark, user must free the c1.
 	* @return user must:
 	* 	continue connect app if success,
 	* 	try simple handshake if error is ERROR_RTMP_TRY_SIMPLE_HS,
 	* 	otherwise, disconnect
 	*/
-	virtual int handshake(SrsSocket& skt, char* c1);
+	virtual int handshake(SrsSocket& skt, char* _c1);
 };
 
 #endif
\ No newline at end of file