Calculation library for CRCs and checksums
Project description
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/INTERLAKEN, CRC-5/EPC-C1G2, CRC-5/G-704, CRC-5/USB, CRC-6/CDMA2000-A, CRC-6/CDMA2000-B, CRC-6/DARC, CRC-6/G-704, CRC-6/GSM, CRC-7/MMC, 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/HITAG, CRC-8/I-432-1, CRC-8/I-CODE, CRC-8/LTE, CRC-8/MAXIM-DOW, CRC-8/MIFARE-MAD, CRC-8/NRSC-5, CRC-8/OPENSAFETY, CRC-8/ROHC, CRC-8/SAE-J1850, CRC-8/SMBUS, CRC-8/TECH-3250, CRC-8/WCDMA, CRC-10/ATM, CRC-10/CDMA2000, CRC-10/GSM, CRC-11/FLEXRAY, CRC-11/UMTS, CRC-12/CDMA2000, CRC-12/DECT, CRC-12/GSM, CRC-12/UMTS, CRC-13/BBC, CRC-14/DARC, CRC-14/GSM, CRC-15/CAN, CRC-15/MPT1327, CRC-16/ARC, CRC-16/CDMA2000, CRC-16/CMS, CRC-16/DDS-110, CRC-16/DECT-R, CRC-16/DECT-X, CRC-16/DNP, CRC-16/EN-13757, CRC-16/GENIBUS, CRC-16/GSM, CRC-16/IBM-3740, CRC-16/IBM-SDLC, CRC-16/ISO-IEC-14443-3-A, CRC-16/KERMIT, CRC-16/LJ1200, CRC-16/M17, CRC-16/MAXIM-DOW, CRC-16/MCRF4XX, CRC-16/MODBUS, CRC-16/NRSC-5, CRC-16/OPENSAFETY-A, CRC-16/OPENSAFETY-B, CRC-16/PROFIBUS, CRC-16/RIELLO, CRC-16/SPI-FUJITSU, CRC-16/T10-DIF, CRC-16/TELEDISK, CRC-16/TMS37157, CRC-16/UMTS, CRC-16/USB, CRC-16/XMODEM, 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/OS-9, CRC-30/CDMA, CRC-31/PHILIPS, CRC-32/AIXM, CRC-32/AUTOSAR, CRC-32/BASE91-D, CRC-32/BZIP2, CRC-32/CD-ROM-EDC, CRC-32/CKSUM, CRC-32/ISCSI, CRC-32/ISO-HDLC, CRC-32/JAMCRC, CRC-32/MEF, CRC-32/MPEG-2, CRC-32/XFER, CRC-40/GSM, CRC-64/ECMA-182, CRC-64/GO-ISO, CRC-64/MS, CRC-64/REDIS, CRC-64/WE, CRC-64/XZ, 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()
- License:
MIT License
Copyright (c) 2015-2022 by Martin Scharrer <martin.scharrer@web.de>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
File details
Details for the file crccheck-1.3.0.tar.gz
.
File metadata
- Download URL: crccheck-1.3.0.tar.gz
- Upload date:
- Size: 18.2 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/3.6.0 importlib_metadata/4.8.2 pkginfo/1.8.1 requests/2.26.0 requests-toolbelt/0.9.1 tqdm/4.62.3 CPython/3.9.6
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 5384f437de610ade5c3d8689efc80ccd1267b8c452ade83411fd8500a1024f3e |
|
MD5 | 9497da87473805033ec60b6f824d9266 |
|
BLAKE2b-256 | 50ee92daff1ca6f8c31f97afe9666efa6d43c74f7ea0415a04ba19300cefef7c |
File details
Details for the file crccheck-1.3.0-py3-none-any.whl
.
File metadata
- Download URL: crccheck-1.3.0-py3-none-any.whl
- Upload date:
- Size: 21.6 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/3.6.0 importlib_metadata/4.8.2 pkginfo/1.8.1 requests/2.26.0 requests-toolbelt/0.9.1 tqdm/4.62.3 CPython/3.9.6
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 278ec53d6f417f197f7e0e29b485093d4879b0bc7a2d29b657ef8242e633b48d |
|
MD5 | 906a3414fb188909bd61ab92dc40a3c9 |
|
BLAKE2b-256 | f42f93f71642e177f0a1d1f392421e314056a2635ca3524b3c57b005cdd995bd |