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comparison main.c @ 12:aec45c673a60

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Fix decryption
author Matt Johnston <matt@ucc.asn.au>
date Wed, 12 Jun 2013 23:48:49 +0800
parents e83b35e864d7
children 915be6f0ff13
comparison
equal deleted inserted replaced
11:e83b35e864d7 12:aec45c673a60
458 long_delay(200); 458 long_delay(200);
459 #endif 459 #endif
460 460
461 // check the signature 461 // check the signature
462 memcpy(&output[2], &indata[HMACLEN], AESLEN); 462 memcpy(&output[2], &indata[HMACLEN], AESLEN);
463 hmac_sha1(output, avr_keys[key_index+1], KEYLEN*8, output, (2+AESLEN)*8); 463 hmac_sha1(output, avr_keys[key_index], KEYLEN*8, output, (2+AESLEN)*8);
464 464
465 if (memcmp(output, indata, HMACLEN) != 0) { 465 if (memcmp(output, indata, HMACLEN) != 0) {
466 printf_P(PSTR("FAIL: hmac mismatch\n")); 466 printf_P(PSTR("FAIL: hmac mismatch\n"));
467 } 467 }
468 468
503 503
504 static void 504 static void
505 cmd_vcc() 505 cmd_vcc()
506 { 506 {
507 uint16_t vcc = adc_vcc(); 507 uint16_t vcc = adc_vcc();
508 printf_P("vcc: %u mV\n", vcc); 508 printf_P(PSTR("vcc: %u mV\n"), vcc);
509 } 509 }
510 510
511 static void 511 static void
512 read_handler() 512 read_handler()
513 { 513 {
531 { 531 {
532 cmd_hmac(&readbuf[5]); 532 cmd_hmac(&readbuf[5]);
533 } 533 }
534 else if (strncmp_P(readbuf, PSTR("decrypt "), 8) == 0) 534 else if (strncmp_P(readbuf, PSTR("decrypt "), 8) == 0)
535 { 535 {
536 cmd_hmac(&readbuf[8]); 536 cmd_decrypt(&readbuf[8]);
537 } 537 }
538 else if (strcmp_P(readbuf, PSTR("vcc")) == 0) 538 else if (strcmp_P(readbuf, PSTR("vcc")) == 0)
539 { 539 {
540 cmd_vcc(); 540 cmd_vcc();
541 } 541 }
708 { 708 {
709 if (watchdog_long_hit 709 if (watchdog_long_hit
710 || watchdog_short_hit 710 || watchdog_short_hit
711 || oneshot_hit) 711 || oneshot_hit)
712 { 712 {
713 printf_P(PSTR("Rebooting! long %d, short %d, oneshot %d\n"),
714 watchdog_long_hit, watchdog_short_hit, oneshot_hit);
715 long_delay(300);
713 reboot_pi(); 716 reboot_pi();
714 } 717 }
715 718
716 if (newboot_hit) { 719 if (newboot_hit) {
717 set_pi_boot_normal(0); 720 set_pi_boot_normal(0);
780 blink(); 783 blink();
781 784
782 stdout = &mystdout; 785 stdout = &mystdout;
783 uart_on(); 786 uart_on();
784 787
785 printf(PSTR("Pi Watchdog\nMatt Johnston [email protected]")); 788 printf_P(PSTR("Pi Watchdog\nMatt Johnston [email protected]"));
786 789
787 set_pi_boot_normal(0); 790 set_pi_boot_normal(0);
788 791
789 load_params(); 792 load_params();
790 793
794 797
795 #if 0 798 #if 0
796 // encryption test 799 // encryption test
797 cmd_set_avr_key("1 6161626263636464656566666767686800000000"); 800 cmd_set_avr_key("1 6161626263636464656566666767686800000000");
798 cmd_set_avr_key("2 7979757569696f6f646465656666717164646969"); 801 cmd_set_avr_key("2 7979757569696f6f646465656666717164646969");
799 cmd_decrypt("1 ecd858ee07a8e16575723513d2d072a7565865e40ba302059bfc650d4491268448102119"); 802 //cmd_decrypt("1 ecd858ee07a8e16575723513d2d072a7565865e40ba302059bfc650d4491268448102119");
803 cmd_decrypt("1 5a587b50fd48688bbda1b510cf9a3fab6fd4737b" "0ba302059bfc650d4491268448102119");
804 cmd_hmac("2 7979757569696f6f646465656666717164646969");
800 #endif 805 #endif
801 806
802 // doesn't return 807 // doesn't return
803 do_comms(); 808 do_comms();
804 809