1nfc-anticol(1) libnfc's examples nfc-anticol(1)
2
6 nfc-anticol - Demonstration of NFC anti-collision command line tool
7 based on libnfc
8
10 nfc-anticol
11
13 nfc-anticol is an anti-collision demonstration tool for ISO/IEC 14443-A
14 tags, performed by custom constructed frames. The first frame must be a
15 short frame which is only 7 bits long. Commercial SDK's often don't
16 support a feature to send frames that are not a multiple of 8 bits (1
17 byte) long. This makes it impossible to do the anti-collision your‐
18 self. The developer has to rely on closed proprietary software and
19 should hope it does not contain vulnerabilities during the anti-colli‐
20 sion phase. Performing the anti-collision using custom frames could
21 protect against a malicious tag that, for example, violates the stan‐
22 dard by sending frames with unsupported lengths. Note that this is
23 only a demonstration tool, which can not handle multiple tags as real
24 life anti-collisions with multiple tags generate "messy" bits which are
25 neither 0 nor 1.
26
29 Please report any bugs on the libnfc issue tracker at:
30 https://github.com/nfc-tools/libnfc/issues
31
33 libnfc is licensed under the GNU Lesser General Public License (LGPL),
34 version 3.
35 libnfc-utils and libnfc-examples are covered by the the BSD 2-Clause
36 license.
37
39 Roel Verdult <roel@libnfc.org>
40 This manual page was written by Romuald Conty <romuald@libnfc.org>. It
42 is licensed under the terms of the GNU GPL (version 2 or later).
43libnfc June 26, 2009 nfc-anticol(1)