File | Date | Author | Commit |
---|---|---|---|
.idea | 2020-09-21 | Martin Scharrer | [45101b] Updated PyCharm settings. |
crccheck | 2020-09-21 | Martin Scharrer | [12ad6b] Updated files with new SW version and updated i... |
create | 2020-09-21 | Martin Scharrer | [0a855e] Updated CRC table doc script. |
docs | 2020-09-21 | Martin Scharrer | [0a855e] Updated CRC table doc script. |
tests | 2020-09-21 | Martin Scharrer | [775ea1] Updated unit tests. |
.coveragerc | 2016-04-05 | Martin Scharrer | [03a259] Added coveragerc. |
.hgignore | 2020-08-08 | Martin Scharrer | [57c478] Added scripts to update CRCs and documentation ... |
.hgtags | 2020-09-21 | Martin Scharrer | [0b27c8] Added tag v1.0 for changeset 12ad6b46f55a |
README.rst | 2020-09-21 | Martin Scharrer | [12ad6b] Updated files with new SW version and updated i... |
setup.py | 2020-10-17 | Ville Skyttä | [16b314] Exclude tests from installs |
The crccheck.crc module implements all CRCs listed in the Catalogue of parametrised CRC algorithms:
CRC-3/GSM, CRC-3/ROHC, CRC-4/G-704, CRC-4/ITU, CRC-4/INTERLAKEN, CRC-5/EPC-C1G2, CRC-5/EPC, CRC-5/G-704, CRC-5/ITU, CRC-5/USB, CRC-6/CDMA2000-A, CRC-6/CDMA2000-B, CRC-6/DARC, CRC-6/G-704, CRC-6/ITU, CRC-6/GSM, CRC-7/MMC, CRC-7, CRC-7/ROHC, CRC-7/UMTS, CRC-8/AUTOSAR, CRC-8/BLUETOOTH, CRC-8/CDMA2000, CRC-8/DARC, CRC-8/DVB-S2, CRC-8/GSM-A, CRC-8/GSM-B, CRC-8/I-432-1, CRC-8/ITU, CRC-8/I-CODE, CRC-8/LTE, CRC-8/MAXIM-DOW, CRC-8/MAXIM, DOW-CRC, CRC-8/MIFARE-MAD, CRC-8/NRSC-5, CRC-8/OPENSAFETY, CRC-8/ROHC, CRC-8/SAE-J1850, CRC-8/SMBUS, CRC-8, CRC-8/TECH-3250, CRC-8/AES, CRC-8/EBU, CRC-8/WCDMA, CRC-10/ATM, CRC-10, CRC-10/I-610, CRC-10/CDMA2000, CRC-10/GSM, CRC-11/FLEXRAY, CRC-11, CRC-11/UMTS, CRC-12/CDMA2000, CRC-12/DECT, CRC-12-X, CRC-12/GSM, CRC-12/UMTS, CRC-12/3GPP, CRC-13/BBC, CRC-14/DARC, CRC-14/GSM, CRC-15/CAN, CRC-15, CRC-15/MPT1327, CRC-16/ARC, ARC, CRC-16/LHA, CRC-IBM, CRC-16/CDMA2000, CRC-16/CMS, CRC-16/DDS-110, CRC-16/DECT-R, R-CRC-16, CRC-16/DECT-X, X-CRC-16, CRC-16/DNP, CRC-16/EN-13757, CRC-16/GENIBUS, CRC-16/DARC, CRC-16/EPC, CRC-16/EPC-C1G2, CRC-16/I-CODE, CRC-16/GSM, CRC-16/IBM-3740, CRC-16/AUTOSAR, CRC-16/CCITT-FALSE, CRC-16/IBM-SDLC, CRC-16/ISO-HDLC, CRC-16/ISO-IEC-14443-3-B, CRC-16/X-25, CRC-B, X-25, CRC-16/ISO-IEC-14443-3-A, CRC-A, CRC-16/KERMIT, CRC-16/CCITT, CRC-16/CCITT-TRUE, CRC-16/V-41-LSB, CRC-CCITT, KERMIT, CRC-16/LJ1200, CRC-16/MAXIM-DOW, CRC-16/MAXIM, CRC-16/MCRF4XX, CRC-16/MODBUS, MODBUS, CRC-16/NRSC-5, CRC-16/OPENSAFETY-A, CRC-16/OPENSAFETY-B, CRC-16/PROFIBUS, CRC-16/IEC-61158-2, CRC-16/RIELLO, CRC-16/SPI-FUJITSU, CRC-16/AUG-CCITT, CRC-16/T10-DIF, CRC-16/TELEDISK, CRC-16/TMS37157, CRC-16/UMTS, CRC-16/BUYPASS, CRC-16/VERIFONE, CRC-16/USB, CRC-16/XMODEM, CRC-16/ACORN, CRC-16/LTE, CRC-16/V-41-MSB, XMODEM, ZMODEM, CRC-17/CAN-FD, CRC-21/CAN-FD, CRC-24/BLE, CRC-24/FLEXRAY-A, CRC-24/FLEXRAY-B, CRC-24/INTERLAKEN, CRC-24/LTE-A, CRC-24/LTE-B, CRC-24/OPENPGP, CRC-24, CRC-24/OS-9, CRC-30/CDMA, CRC-31/PHILIPS, CRC-32/AIXM, CRC-32Q, CRC-32/AUTOSAR, CRC-32/BASE91-D, CRC-32D, CRC-32/BZIP2, CRC-32/AAL5, CRC-32/DECT-B, B-CRC-32, CRC-32/CD-ROM-EDC, CRC-32/CKSUM, CKSUM, CRC-32/POSIX, CRC-32/ISCSI, CRC-32/BASE91-C, CRC-32/CASTAGNOLI, CRC-32/INTERLAKEN, CRC-32C, CRC-32/ISO-HDLC, CRC-32, CRC-32/ADCCP, CRC-32/V-42, CRC-32/XZ, PKZIP, CRC-32/JAMCRC, JAMCRC, CRC-32/MPEG-2, CRC-32/XFER, XFER, CRC-40/GSM, CRC-64/ECMA-182, CRC-64, CRC-64/GO-ISO, CRC-64/WE, CRC-64/XZ, CRC-64/GO-ECMA, CRC-82/DARC
For the class names simply remove all dashes and slashes from the above names and apply CamelCase, e.g. "CRC-32/MPEG-2" is implemented by Crc32Mpeg2. Other CRC can be calculated by using the general class crccheck.crc.Crc by providing all required CRC parameters.
The crccheck.checksum module implements additive and XOR checksums with 8, 16 and 32 bit: Checksum8, Checksum16, Checksum32 and ChecksumXor8, ChecksumXor16, ChecksumXor32
Usage example:
from crccheck.crc import Crc32, CrcXmodem from crccheck.checksum import Checksum32 # Quick calculation data = bytearray.fromhex("DEADBEEF") crc = Crc32.calc(data) checksum = Checksum32.calc(data) # Procsss multiple data buffers data1 = b"Binary string" # or use .encode(..) on normal sring - Python 3 only data2 = bytes.fromhex("1234567890") # Python 3 only, use bytearray for older versions data3 = (0x0, 255, 12, 99) # Iterable which returns ints in byte range (0..255) crcinst = CrcXmodem() crcinst.process(data1) crcinst.process(data2) crcinst.process(data3[1:-1]) crcbytes = crcinst.finalbytes() crchex = crcinst.finalhex() crcint = crcinst.final()