+void bcal_stacksize(const bcdesc_t* bcd){
+ bcdesc_t bc;
+ stack_measuring_ctx_t smctx;
+ memcpy_P(&bc, bcd, sizeof(bcdesc_t));
+ uint8_t ctx[bc.ctxsize_B];
+ uint8_t data[(bc.blocksize_b+7)/8];
+ uint16_t keysize = get_keysize(bc.valid_keysize_desc);
+ uint8_t key[(keysize+7)/8];
+ uint16_t t1, t2;
+
+ if(bc.type!=BCDESC_TYPE_BLOCKCIPHER)
+ return;
+ cli_putstr_P(PSTR("\r\n\r\n === "));
+ cli_putstr_P(bc.name);
+ cli_putstr_P(PSTR(" stack-usage === "));
+
+ if(bc.init.init1){
+ if((bc.flags&BC_INIT_TYPE)==BC_INIT_TYPE_1){
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.init.init1(&ctx, key);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.init.init1(&ctx, key);
+ t2 = stack_measure_final(&smctx);
+ sei();
+ } else {
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.init.init2(&ctx, keysize, key);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.init.init2(&ctx, keysize, key);
+ t2 = stack_measure_final(&smctx);
+ sei();
+ }
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n init (bytes): "));
+ printvalue((unsigned long)t1);
+ }
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.enc.enc1(data, &ctx);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.enc.enc1(data, &ctx);
+ t2 = stack_measure_final(&smctx);
+ sei();
+
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n encBlock (bytes): "));
+ printvalue((unsigned long)t1);
+
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.dec.dec1(data, &ctx);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.dec.dec1(data, &ctx);
+ t2 = stack_measure_final(&smctx);
+ sei();
+
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n decBlock (bytes): "));
+ printvalue((unsigned long)t1);
+
+ if(bc.free){
+ bc.free(&ctx);
+ }
+}