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iceman1001 2025-01-14 18:18:07 +01:00
commit 1040fa8a86
8 changed files with 171 additions and 53 deletions
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30
armsrc/emvsim.c
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@ -138,7 +138,7 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, uint16_t atqa, uint8_
rSAK[0] = block0[5];
memcpy(rATQA, &block0[6], sizeof(rATQA));
}
// Check for 7 bytes UID: double size uid bits in ATQA
// Check for 7 bytes UID: double size uid bits in ATQA
else if ((block0[8] & 0xc0) == 0x40) {
flags |= FLAG_7B_UID_IN_DATA_OLD;
memcpy(datain, block0, 7);
@ -497,17 +497,17 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
break;
}
// The anti-collision sequence, which is a mandatory part of the card activation sequence.
// It auto with 4-byte UID (= Single Size UID),
// 7 -byte UID (= Double Size UID) or 10-byte UID (= Triple Size UID).
// For details see chapter 2 of AN10927.pdf
//
// This case is used for all Cascade Levels, because:
// 1) Any devices (under Android for example) after full select procedure completed,
// when UID is known, uses "fast-selection" method. In this case reader ignores
// first cascades and tries to select tag by last bytes of UID of last cascade
// 2) Any readers (like ACR122U) uses bit oriented anti-collision frames during selectin,
// same as multiple tags. For details see chapter 6.1.5.3 of ISO/IEC 14443-3
// The anti-collision sequence, which is a mandatory part of the card activation sequence.
// It auto with 4-byte UID (= Single Size UID),
// 7 -byte UID (= Double Size UID) or 10-byte UID (= Triple Size UID).
// For details see chapter 2 of AN10927.pdf
//
// This case is used for all Cascade Levels, because:
// 1) Any devices (under Android for example) after full select procedure completed,
// when UID is known, uses "fast-selection" method. In this case reader ignores
// first cascades and tries to select tag by last bytes of UID of last cascade
// 2) Any readers (like ACR122U) uses bit oriented anti-collision frames during selectin,
// same as multiple tags. For details see chapter 6.1.5.3 of ISO/IEC 14443-3
case MFEMUL_SELECT: {
int uid_index = -1;
@ -591,7 +591,7 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
break;
}
// WORK
// WORK
case MFEMUL_WORK: {
if (receivedCmd_len == 0) {
@ -700,7 +700,7 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
// We want to modify corrupted request
if ((receivedCmd_len > 5 && receivedCmd[0] != 0x03 && receivedCmd[0] != 0x02 && receivedCmd[1] == 0 && receivedCmd[4] == 0) || (receivedCmd[2] == 0xa8)) {
//if (receivedCmd[2] == 0xa8) {
//if (receivedCmd[2] == 0xa8) {
Dbprintf("We saw signing request... modifying it into a generate ac transaction !!!!");
receivedCmd[0] = 0x03;
receivedCmd[1] = 0x80;
@ -752,7 +752,7 @@ void EMVsim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain, uint16_t a
// This is minus 3 because we don't include the first byte (prepend), plus we don't want to send the
// last two bytes (CRC) to the card
CmdSmartRaw(receivedCmd_copy[0], &(receivedCmd_copy[1]), receivedCmd_len_copy-3, (&responseToReader[0]), &responseToReader_len);
CmdSmartRaw(receivedCmd_copy[0], &(receivedCmd_copy[1]), receivedCmd_len_copy - 3, (&responseToReader[0]), &responseToReader_len);
EmSendCmd(responseToReader, responseToReader_len);
Dbprintf("Sent delayed command to card...");