+void testrun_performance_serpent(void){
+ uint16_t i,c;
+ uint64_t t;
+ char str[16];
+ uint8_t key[32], data[16];
+ serpent_ctx_t ctx;
+
+ 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, 32);
+ memset(data, 0, 16);
+
+ startTimer(1);
+ serpent_genctx(key, 0, &ctx);
+ t = stopTimer();
+ uart_putstr_P(PSTR("\r\n\tctx-gen time: "));
+ ultoa((unsigned long)t, str, 10);
+ uart_putstr(str);
+
+
+ startTimer(1);
+ serpent_enc(data, &ctx);
+ t = stopTimer();
+ uart_putstr_P(PSTR("\r\n\tencrypt time: "));
+ ultoa((unsigned long)t, str, 10);
+ uart_putstr(str);
+
+
+ startTimer(1);
+ serpent_dec(data, &ctx);
+ 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"));
+}