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[FL-1643] NFC emv assets (#661)

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* assets: add EMV AID table for NFC app
* file-worker: add searching for value by the key
* nfc: add emv parser helpers
* assets: add country and currency codes
* nfc: add country and currency code parsing
* emv_decoder: add country and currency code support
* nfc: add AID. currency and country display
* nfc: rework bank_card view
* nfc: add currency and country save
* assets: change emv chip asset
* nfc: change asset in bank card
* gui: add frame element to widget
* nfc: add bank card frame, add documentation
* rfal: fix long APDU command emulation
* nfc: fix typos
* Scripts ReadMe: assets delivery command

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
This commit is contained in:
gornekich
2021-08-20 22:56:43 +03:00
committed by GitHub
parent b1bbf1730c
commit ecff31d228
31 changed files with 1251 additions and 319 deletions
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17
lib/nfc_protocols/emv_decoder.c
View File

@@ -63,6 +63,14 @@ static uint16_t emv_parse_TLV(uint8_t* dest, uint8_t* src, uint16_t* idx) {
return len;
}
static bool emv_decode_search_tag_u16_r(uint16_t tag, uint8_t* buff, uint16_t* idx) {
if((buff[*idx] << 8 | buff[*idx + 1]) == tag) {
*idx = *idx + 3;
return true;
}
return false;
}
uint16_t emv_prepare_select_ppse(uint8_t* dest) {
const uint8_t emv_select_ppse[] = {
0x00, 0xA4, // SELECT ppse
@@ -219,10 +227,15 @@ bool emv_decode_read_sfi_record(uint8_t* buff, uint16_t len, EmvApplication* app
if(buff[i] == EMV_TAG_PAN) {
memcpy(app->card_number, &buff[i + 2], 8);
pan_parsed = true;
} else if((buff[i] << 8 | buff[i + 1]) == EMV_TAG_EXP_DATE) {
i += 3;
} else if(emv_decode_search_tag_u16_r(EMV_TAG_EXP_DATE, buff, &i)) {
app->exp_year = buff[i++];
app->exp_month = buff[i++];
} else if(emv_decode_search_tag_u16_r(EMV_TAG_CURRENCY_CODE, buff, &i)) {
app->currency_code = (buff[i] << 8) | buff[i + 1];
i += 2;
} else if(emv_decode_search_tag_u16_r(EMV_TAG_COUNTRY_CODE, buff, &i)) {
app->country_code = (buff[i] << 8) | buff[i + 1];
i += 2;
}
}
return pan_parsed;

5
lib/nfc_protocols/emv_decoder.h
View File

@@ -17,6 +17,8 @@
#define EMV_TAG_PAN 0x5A
#define EMV_TAG_AFL 0x94
#define EMV_TAG_EXP_DATE 0x5F24
#define EMV_TAG_COUNTRY_CODE 0x5F28
#define EMV_TAG_CURRENCY_CODE 0x9F42
#define EMV_TAG_CARDHOLDER_NAME 0x5F20
typedef struct {
@@ -39,7 +41,8 @@ typedef struct {
uint8_t card_number[8];
uint8_t exp_month;
uint8_t exp_year;
char crdholder_name[32];
uint16_t country_code;
uint16_t currency_code;
APDU pdol;
APDU afl;
} EmvApplication;