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the device side of iclass tear off is implemented. The base was done by @antiklesys. This version differs by the concept of trying to stabilize weak bits by performing a write operation in conjuction with the detected tear. Its untested but I can replicate most of the tears we performed client side. You will need to call the proxmark3 client with -f , ./pm3 -f to force flush out text which is needed for the inplace printing. I thought this was done automatically but it wasnt. hf iclass tear --arm + all the normal params to run on device side

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iceman1001 2025-05-30 01:37:13 +02:00
commit 804acfbefa
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armsrc/iso14443b.c
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@ -2135,6 +2135,9 @@ static int iso14443b_select_picopass_card(picopass_hdr_t *hdr) {
static uint8_t act_all[] = { ICLASS_CMD_ACTALL };
static uint8_t identify[] = { ICLASS_CMD_READ_OR_IDENTIFY };
static uint8_t read_conf[] = { ICLASS_CMD_READ_OR_IDENTIFY, 0x01, 0xfa, 0x22 };
// ICLASS_CMD_SELECT 0x81 tells ISO14443b/BPSK coding/106 kbits/s
// ICLASS_CMD_SELECT 0x41 tells ISO14443b/BPSK coding/423 kbits/s
uint8_t select[] = { 0x80 | ICLASS_CMD_SELECT, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t read_aia[] = { ICLASS_CMD_READ_OR_IDENTIFY, 0x05, 0xde, 0x64};
uint8_t read_check_cc[] = { 0x80 | ICLASS_CMD_READCHECK, 0x02 };