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| author | Martin Kaiser <wireshark@kaiser.cx> | 2016-02-06 13:57:56 +0100 |
|---|---|---|
| committer | Anders Broman <a.broman58@gmail.com> | 2016-02-08 06:01:05 +0000 |
| commit | 40331511ed9c117703c3097f23e3a2f17b17e993 (patch) | |
| tree | 8cf742e5d33f1c747f6476698396871c3d2d7bb6 /wsutil/crc16.h | |
| parent | 0fbc8f80dae3fa7f47d121b25655ac86268681b8 (diff) | |
| download | wireshark-40331511ed9c117703c3097f23e3a2f17b17e993.tar.gz | |
add functions to calculate the CRC of an ISO14443-A message
Change-Id: I1ccd9885746a6044f298d7d531a9bc009a70288e
Reviewed-on: https://code.wireshark.org/review/13802
Petri-Dish: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Diffstat (limited to 'wsutil/crc16.h')
| -rw-r--r-- | wsutil/crc16.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/wsutil/crc16.h b/wsutil/crc16.h index 151b3f210d..11616089cc 100644 --- a/wsutil/crc16.h +++ b/wsutil/crc16.h @@ -61,6 +61,12 @@ WS_DLL_PUBLIC guint16 crc16_x25_ccitt_seed(const guint8 *buf, guint len, guint16 @return The CRC16 CCITT checksum (using the given seed). */ WS_DLL_PUBLIC guint16 crc16_ccitt_seed(const guint8 *buf, guint len, guint16 seed); +/** Compute the 16bit CRC_A value of a buffer as defined in ISO14443-3. + @param buf The buffer containing the data. + @param len The number of bytes to include in the computation. + @return the CRC16 checksum for the buffer */ +WS_DLL_PUBLIC guint16 crc16_iso14443a(const guint8 *buf, guint len); + /** Calculates a CRC16 checksum for the given buffer with the polynom * 0x5935 using a precompiled CRC table * @param buf a pointer to a buffer of the given length |