diff --git a/main-des-test.c b/main-des-test.c
new file mode 100644
index 0000000..86b76e1
--- /dev/null
+++ b/main-des-test.c
@@ -0,0 +1,115 @@
+/*
+ * des test-suit
+ * 
+*/
+
+#include "config.h"
+#include "serial-tools.h"
+#include "uart.h"
+#include "debug.h"
+
+#include "des.h"
+#include "nessie_bc_test.h"
+#include "cli.h"
+#include "performance_test.h"
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+char* cipher_name = "DES";
+
+/*****************************************************************************
+ *  additional validation-functions											 *
+ *****************************************************************************/
+void des_init_dummy(const void* key, uint16_t keysize_b, void* ctx){
+	memcpy(ctx, key, 8);
+}
+
+void des_enc_dummy(void* buffer, void* ctx){
+	des_encrypt(buffer, buffer, ctx);
+} 
+
+void des_dec_dummy(void* buffer, void* ctx){
+	des_decrypt(buffer, buffer, ctx);
+} 
+
+void testrun_nessie_des(void){
+	nessie_bc_init();
+	nessie_bc_ctx.blocksize_B =   8;
+	nessie_bc_ctx.keysize_b   =  64;
+	nessie_bc_ctx.name        = cipher_name;
+	nessie_bc_ctx.ctx_size_B  = sizeof(8);
+	nessie_bc_ctx.cipher_enc  = (nessie_bc_enc_fpt)des_enc_dummy;
+	nessie_bc_ctx.cipher_dec  = (nessie_bc_dec_fpt)des_dec_dummy;
+	nessie_bc_ctx.cipher_genctx  = (nessie_bc_gen_fpt)des_init_dummy;
+	
+	nessie_bc_run();
+}
+
+
+void testrun_performance_des(void){
+	uint16_t i,c;
+	uint64_t t;
+	char str[16];
+	uint8_t key[8], data[8];
+	
+	
+	calibrateTimer();
+	getOverhead(&c, &i);
+	uart_putstr_P(PSTR("\r\n\r\n=== benchmark ==="));
+	utoa(c, str, 10);
+	uart_putstr_P(PSTR("\r\n\tconst overhead:     "));
+	uart_putstr(str);
+	utoa(i, str, 10);
+	uart_putstr_P(PSTR("\r\n\tinterrupt overhead: "));
+	uart_putstr(str);
+	
+	memset(key,  0, 8);
+	memset(data, 0, 8);
+	
+	startTimer(1);
+	des_encrypt(data, data, key);
+	t = stopTimer();
+	uart_putstr_P(PSTR("\r\n\tencrypt time: "));
+	ultoa((unsigned long)t, str, 10);
+	uart_putstr(str);
+	
+	startTimer(1);
+	des_decrypt(data, data, key);
+	t = stopTimer();
+	uart_putstr_P(PSTR("\r\n\tdecrypt time: "));
+	ultoa((unsigned long)t, str, 10);
+	uart_putstr(str);
+	uart_putstr_P(PSTR("\r\n"));
+}
+/*****************************************************************************
+ *  main																	 *
+ *****************************************************************************/
+
+typedef void(*void_fpt)(void);
+
+int main (void){
+	char  str[20];
+	DEBUG_INIT();
+	uart_putstr("\r\n");
+
+	uart_putstr_P(PSTR("\r\n\r\nCrypto-VS ("));
+	uart_putstr(cipher_name);
+	uart_putstr_P(PSTR(")\r\nloaded and running\r\n"));
+
+	PGM_P    u   = PSTR("nessie\0test\0performance\0");
+	void_fpt v[] = {testrun_nessie_des, testrun_nessie_des, testrun_performance_des};
+
+	while(1){ 
+		if (!getnextwordn(str,20)){DEBUG_S("DBG: W1\r\n"); goto error;}
+		if(execcommand_d0_P(str, u, v)<0){
+			uart_putstr_P(PSTR("\r\nunknown command\r\n"));
+		}
+		continue;
+	error:
+		uart_putstr("ERROR\r\n");
+	}
+	
+}
+
diff --git a/main-tdes-test.c b/main-tdes-test.c
new file mode 100644
index 0000000..aefcb2f
--- /dev/null
+++ b/main-tdes-test.c
@@ -0,0 +1,115 @@
+/*
+ * tdes test-suit
+ * 
+*/
+
+#include "config.h"
+#include "serial-tools.h"
+#include "uart.h"
+#include "debug.h"
+
+#include "des.h"
+#include "nessie_bc_test.h"
+#include "cli.h"
+#include "performance_test.h"
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+char* cipher_name = "TDES";
+
+/*****************************************************************************
+ *  additional validation-functions											 *
+ *****************************************************************************/
+void tdes_init_dummy(const void* key, uint16_t keysize_b, void* ctx){
+	memcpy(ctx, key, 8*3);
+}
+
+void tdes_enc_dummy(void* buffer, void* ctx){
+	tdes_encrypt(buffer, buffer, ctx);
+} 
+
+void tdes_dec_dummy(void* buffer, void* ctx){
+	tdes_decrypt(buffer, buffer, ctx);
+} 
+
+void testrun_nessie_tdes(void){
+	nessie_bc_init();
+	nessie_bc_ctx.blocksize_B =   8;
+	nessie_bc_ctx.keysize_b   = 192;
+	nessie_bc_ctx.name        = cipher_name;
+	nessie_bc_ctx.ctx_size_B  = sizeof(8*3);
+	nessie_bc_ctx.cipher_enc  = (nessie_bc_enc_fpt)tdes_enc_dummy;
+	nessie_bc_ctx.cipher_dec  = (nessie_bc_dec_fpt)tdes_dec_dummy;
+	nessie_bc_ctx.cipher_genctx  = (nessie_bc_gen_fpt)tdes_init_dummy;
+
+	nessie_bc_run();
+}
+
+
+void testrun_performance_tdes(void){
+	uint16_t i,c;
+	uint64_t t;
+	char str[16];
+	uint8_t key[8*3], data[8];
+	
+	
+	calibrateTimer();
+	getOverhead(&c, &i);
+	uart_putstr_P(PSTR("\r\n\r\n=== benchmark ==="));
+	utoa(c, str, 10);
+	uart_putstr_P(PSTR("\r\n\tconst overhead:     "));
+	uart_putstr(str);
+	utoa(i, str, 10);
+	uart_putstr_P(PSTR("\r\n\tinterrupt overhead: "));
+	uart_putstr(str);
+	
+	memset(key,  0, 8*3);
+	memset(data, 0, 8);
+	
+	startTimer(1);
+	tdes_encrypt(data, data, key);
+	t = stopTimer();
+	uart_putstr_P(PSTR("\r\n\tencrypt time: "));
+	ultoa((unsigned long)t, str, 10);
+	uart_putstr(str);
+	
+	startTimer(1);
+	tdes_decrypt(data, data, key);
+	t = stopTimer();
+	uart_putstr_P(PSTR("\r\n\tdecrypt time: "));
+	ultoa((unsigned long)t, str, 10);
+	uart_putstr(str);
+	uart_putstr_P(PSTR("\r\n"));
+}
+/*****************************************************************************
+ *  main																	 *
+ *****************************************************************************/
+
+typedef void(*void_fpt)(void);
+
+int main (void){
+	char  str[20];
+	DEBUG_INIT();
+	uart_putstr("\r\n");
+
+	uart_putstr_P(PSTR("\r\n\r\nCrypto-VS ("));
+	uart_putstr(cipher_name);
+	uart_putstr_P(PSTR(")\r\nloaded and running\r\n"));
+
+	PGM_P    u   = PSTR("nessie\0test\0performance\0");
+	void_fpt v[] = {testrun_nessie_tdes, testrun_nessie_tdes, testrun_performance_tdes};
+
+	while(1){ 
+		if (!getnextwordn(str,20)){DEBUG_S("DBG: W1\r\n"); goto error;}
+		if(execcommand_d0_P(str, u, v)<0){
+			uart_putstr_P(PSTR("\r\nunknown command\r\n"));
+		}
+		continue;
+	error:
+		uart_putstr("ERROR\r\n");
+	}
+	
+}
+