unleashed-firmware/applications/main/nfc/helpers/mf_ultralight_auth.c
RebornedBrain 3224401479
[FL-3835] Ultralight C authentication with des key (#3720)
* Update api_symbols.csv
* Ultralight C 3des implementation added
* Access check for Ultralight cards is now splitted into 2 functions one for ULC card and another for common
* Ultralight C authentication command handlers added
* Update api_symbols.csv and api_symbols.csv
* Length added to ultralight encrypt function
* New structure for storing 3des key added
* Reseting of 3des_key added
* des_context init/deinit added to poller
* New poller step for ultralight c auth added
* Added ultralight c des key to application
* Renamed felica unlock scenes to more generic des auth scenes, because they are now used also for ultralight c
* Show different menus for different ultralight card types
* Update api_symbols.csv and api_symbols.csv
* Some macro defines added
* Different amount of pages will be now read for ultralight C and others
* New unit test for ultralight C
* Some comments and macro replacements
* New function added to api
* Now all data read checks mfulC separately
* Adjusted listener to handle missing 3des_key properly
* Now poller populates 3des_key after reading with auth to card data
* Nfc: rename _3des_key to tdes_key
* Bump API Symbols
* Mute PVS Warnings

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: gornekich <n.gorbadey@gmail.com>
Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2024-07-03 12:38:30 +01:00

59 lines
1.7 KiB
C

#include "mf_ultralight_auth.h"
#include <furi.h>
#include <mbedtls/sha1.h>
MfUltralightAuth* mf_ultralight_auth_alloc(void) {
MfUltralightAuth* instance = malloc(sizeof(MfUltralightAuth));
return instance;
}
void mf_ultralight_auth_free(MfUltralightAuth* instance) {
furi_assert(instance);
free(instance);
}
void mf_ultralight_auth_reset(MfUltralightAuth* instance) {
furi_assert(instance);
instance->type = MfUltralightAuthTypeNone;
memset(&instance->password, 0, sizeof(MfUltralightAuthPassword));
memset(&instance->tdes_key, 0, sizeof(MfUltralightC3DesAuthKey));
memset(&instance->pack, 0, sizeof(MfUltralightAuthPack));
}
bool mf_ultralight_generate_amiibo_pass(MfUltralightAuth* instance, uint8_t* uid, uint16_t uid_len) {
furi_assert(instance);
furi_assert(uid);
bool generated = false;
if(uid_len == 7) {
instance->password.data[0] = uid[1] ^ uid[3] ^ 0xAA;
instance->password.data[1] = uid[2] ^ uid[4] ^ 0x55;
instance->password.data[2] = uid[3] ^ uid[5] ^ 0xAA;
instance->password.data[3] = uid[4] ^ uid[6] ^ 0x55;
generated = true;
}
return generated;
}
bool mf_ultralight_generate_xiaomi_pass(MfUltralightAuth* instance, uint8_t* uid, uint16_t uid_len) {
furi_assert(instance);
furi_assert(uid);
uint8_t hash[20];
bool generated = false;
if(uid_len == 7) {
mbedtls_sha1(uid, uid_len, hash);
instance->password.data[0] = (hash[hash[0] % 20]);
instance->password.data[1] = (hash[(hash[0] + 5) % 20]);
instance->password.data[2] = (hash[(hash[0] + 13) % 20]);
instance->password.data[3] = (hash[(hash[0] + 17) % 20]);
generated = true;
}
return generated;
}