diff --git a/platform/src/ssl_service_cache.cpp b/platform/src/ssl_service_cache.cpp
index 1bc3442..11f845c 100644
--- a/platform/src/ssl_service_cache.cpp
+++ b/platform/src/ssl_service_cache.cpp
@@ -318,18 +318,32 @@ static long app_st_write_cb(void * data, const uchar * key, uint size, void * us
 int ssl_service_cache_read(struct ssl_service_cache* svc_cache, const struct ssl_chello* chello, const struct tfe_stream_addr * addr, struct ssl_service_status* result)
 {
 	long cli_st_cb_ret=0, svr_st_cb_ret=0, app_st_cb_ret=0;
-	char hash_key[2048];
+	char temp_key[2048];
+	unsigned char hash_key[4096]; // Size must be twice the size of temp_key
+	size_t temp_key_sz=0;
 	size_t hash_key_sz=0;
 	if(chello->sni==NULL)
 	{
 		return 0;
 	}
-	hash_key_sz=ssl_svc_client_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-	MESA_htable_search_cb(svc_cache->cli_st_hash, (unsigned char*) hash_key, (unsigned int) hash_key_sz, cli_st_read_cb, result, &cli_st_cb_ret);	
-	hash_key_sz=ssl_svc_server_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-	MESA_htable_search_cb(svc_cache->srv_st_hash, (unsigned char*) hash_key, (unsigned int) hash_key_sz, srv_st_read_cb, result, &svr_st_cb_ret);
-	hash_key_sz=ssl_svc_app_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-	MESA_htable_search_cb(svc_cache->app_st_hash, (unsigned char*) hash_key, (unsigned int) hash_key_sz, app_st_read_cb, result, &app_st_cb_ret);
+
+	memset(hash_key, 0, sizeof(hash_key));
+	temp_key_sz = ssl_svc_client_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+	hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+	TFE_LOG_DEBUG(g_default_logger, "ssl svc read client table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+	MESA_htable_search_cb(svc_cache->cli_st_hash, hash_key, (unsigned int) hash_key_sz, cli_st_read_cb, result, &cli_st_cb_ret);	
+
+	memset(hash_key, 0, sizeof(hash_key));
+	temp_key_sz = ssl_svc_server_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+	hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+	TFE_LOG_DEBUG(g_default_logger, "ssl svc read server table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+	MESA_htable_search_cb(svc_cache->srv_st_hash, hash_key, (unsigned int) hash_key_sz, srv_st_read_cb, result, &svr_st_cb_ret);
+
+	memset(hash_key, 0, sizeof(hash_key));
+	temp_key_sz = ssl_svc_app_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+	hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+	TFE_LOG_DEBUG(g_default_logger, "ssl svc read app table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+	MESA_htable_search_cb(svc_cache->app_st_hash, hash_key, (unsigned int) hash_key_sz, app_st_read_cb, result, &app_st_cb_ret);
 
 	if(cli_st_cb_ret||svr_st_cb_ret||app_st_cb_ret)
 	{
@@ -344,7 +358,9 @@ int ssl_service_cache_read(struct ssl_service_cache* svc_cache, const struct ssl
 void ssl_service_cache_write(struct ssl_service_cache* svc_cache, const struct ssl_chello* chello, const struct tfe_stream_addr * addr, const struct ssl_service_status* status)
 {
 	long cli_st_cb_ret=0, svr_st_cb_ret=0;
-	char hash_key[2048];
+	char temp_key[2048];
+	unsigned char hash_key[4096]; // Size must be twice the size of temp_key
+	size_t temp_key_sz=0;
 	size_t hash_key_sz=0;
 
 	if(chello == NULL || chello->sni==NULL)
@@ -354,18 +370,27 @@ void ssl_service_cache_write(struct ssl_service_cache* svc_cache, const struct s
 	struct ssl_service_write_args write_args={svc_cache, status};
 	if(status->is_mutual_auth||status->cli_pinning_status!=PINNING_ST_NOT_PINNING||status->has_protocol_errors)
 	{
-		hash_key_sz=ssl_svc_client_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-		MESA_htable_search_cb(svc_cache->cli_st_hash, (unsigned char*)hash_key, (unsigned int) hash_key_sz, cli_st_write_cb, &write_args, &cli_st_cb_ret);	
+		memset(hash_key, 0, sizeof(hash_key));
+		temp_key_sz = ssl_svc_client_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+		hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+		TFE_LOG_DEBUG(g_default_logger, "ssl svc write client table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+		MESA_htable_search_cb(svc_cache->cli_st_hash, hash_key, (unsigned int) hash_key_sz, cli_st_write_cb, &write_args, &cli_st_cb_ret);	
 	}
 	if(status->is_ct||status->is_ev)
 	{	
-		hash_key_sz=ssl_svc_server_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-		MESA_htable_search_cb(svc_cache->srv_st_hash, (unsigned char*)hash_key, (unsigned int) hash_key_sz, srv_st_write_cb, &write_args, &svr_st_cb_ret);
+		memset(hash_key, 0, sizeof(hash_key));
+		temp_key_sz = ssl_svc_server_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+		hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+		TFE_LOG_DEBUG(g_default_logger, "ssl svc write server table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+		MESA_htable_search_cb(svc_cache->srv_st_hash, hash_key, (unsigned int) hash_key_sz, srv_st_write_cb, &write_args, &svr_st_cb_ret);
 	}
 	if(status->is_app_not_pinning)
 	{
-		hash_key_sz=ssl_svc_app_st_mk_key(chello, addr, hash_key, sizeof(hash_key));
-		MESA_htable_search_cb(svc_cache->app_st_hash, (unsigned char*)hash_key, (unsigned int) hash_key_sz, app_st_write_cb, &write_args, &svr_st_cb_ret);
+		memset(hash_key, 0, sizeof(hash_key));
+		temp_key_sz = ssl_svc_app_st_mk_key(chello, addr, temp_key, sizeof(temp_key));
+		hash_key_sz = tfe_hexdump(hash_key, (unsigned char *)temp_key, temp_key_sz) - hash_key;
+		TFE_LOG_DEBUG(g_default_logger, "ssl svc write app table, hash:%s, ori_len:%lu hash_len:%lu\n", hash_key, temp_key_sz, hash_key_sz);
+		MESA_htable_search_cb(svc_cache->app_st_hash, hash_key, (unsigned int) hash_key_sz, app_st_write_cb, &write_args, &svr_st_cb_ret);
 	}
 }
 struct ssl_service_cache* ssl_service_cache_create(unsigned int slot_size, unsigned int expire_seconds, int fail_as_pinning_cnt, int fail_as_proto_err_cnt, int fail_time_win)