From 9f5e93bed80366d2c769dda966a2255613639add Mon Sep 17 00:00:00 2001 From: Zinong Li <131403964+zinongli@users.noreply.github.com> Date: Mon, 24 Feb 2025 14:59:05 -0500 Subject: [PATCH] LFRFID: Fix Detection Conflict Between Securakey and Noralsy Format (#4125) * Securakey added parity check * Format Sources Co-authored-by: Aleksandr Kutuzov --- lib/lfrfid/protocols/protocol_securakey.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/lib/lfrfid/protocols/protocol_securakey.c b/lib/lfrfid/protocols/protocol_securakey.c index a4bfeca60..947b68e72 100644 --- a/lib/lfrfid/protocols/protocol_securakey.c +++ b/lib/lfrfid/protocols/protocol_securakey.c @@ -61,17 +61,22 @@ uint8_t* protocol_securakey_get_data(ProtocolSecurakey* protocol) { static bool protocol_securakey_can_be_decoded(ProtocolSecurakey* protocol) { // check 19 bits preamble + format flag if(bit_lib_get_bits_32(protocol->RKKT_encoded_data, 0, 19) == 0b0111111111000000000) { - protocol->bit_format = 0; - return true; + if(bit_lib_test_parity(protocol->RKKT_encoded_data, 2, 54, BitLibParityAlways0, 9)) { + protocol->bit_format = 0; + return true; + } } else if(bit_lib_get_bits_32(protocol->RKKT_encoded_data, 0, 19) == 0b0111111111001011010) { - protocol->bit_format = 26; - return true; + if(bit_lib_test_parity(protocol->RKKT_encoded_data, 2, 90, BitLibParityAlways0, 9)) { + protocol->bit_format = 26; + return true; + } } else if(bit_lib_get_bits_32(protocol->RKKT_encoded_data, 0, 19) == 0b0111111111001100000) { - protocol->bit_format = 32; - return true; - } else { - return false; + if(bit_lib_test_parity(protocol->RKKT_encoded_data, 2, 90, BitLibParityAlways0, 9)) { + protocol->bit_format = 32; + return true; + } } + return false; } static void protocol_securakey_decode(ProtocolSecurakey* protocol) {