pburggraf/crc

Cyclic redundancy checker (crc) class to calculate crc8, crc16, crc24 and crc32 checksum values

v0.10.0 2024-04-10 17:28 UTC

Requires

• php: >=8.1

Requires (Dev)

• friendsofphp/php-cs-fixer: ^3.0
• phpstan/phpstan: ^1.0
• phpstan/phpstan-phpunit: ^1.0
• phpunit/phpunit: ^9.5

MIT

• Philip Burggraf

• validation
• checksum
• crc32
• crc
• crc16
• crc8
• crc24
• checksum generator
• cyclic redundancy checker

README

This is an implementation of the CRC RevEng Catalogue in PHP 7.x

How to use

<?php

// Autoloading via Composer
require __DIR__ . '/vendor/autoload.php';

$crc8 = new \PBurggraf\CRC\CRC8\CRC8();
var_dump(dechex($crc8->calculate('123456789'))); // string(2) "f4"

$crc16AugCcitt = new \PBurggraf\CRC\CRC16\AugCcitt();
var_dump(dechex($crc16AugCcitt->calculate('123456789'))); // string(4) "e5cc"

$crc24 = new \PBurggraf\CRC\CRC24\CRC24();
var_dump(dechex($crc24->calculate('123456789'))); // string(6) "21cf02"

$crc32 = new \PBurggraf\CRC\CRC32\CRC32();
var_dump(dechex($crc32->calculate('123456789'))); // string(8) "cbf43926"

Test

This project uses phpunit to test the validation of crc calculations.

Currently implemented

8bit CRC

AUTOSAR, BLUETOOTH, CDMA2000, DARC, DVB-S2, GSM-A, GSM-B, I-432-1 (ITU), I-CODE, LTE, MAXIM-DOW (MAXIM, DOW-CRC), MIFARE-MAD, NRSC-5, OPENSAFETY, ROHC, SAE-J1850, SMBUS (CRC-8), TECH-3250 (AES, EBU)

16bit CRC

ARC (CRC-16, LHA, CRC-IBM), CDMA2000, CMS, DDS-110, DECT-R (R-CRC-16), DECT-X (X-CRC-16), DNP, EN-13757, GENIBUS (DARC, EPC, EPC-C1G2, I-CODE), GSM, IBM-3740 (AUTOSAR, CCITT-FALSE), IBM-SDLC (ISO-HDLC, ISO-IEC-14443-3-B, X-25, CRC-B), ISO-IEC-14443-3-A (CRC-A), KERMIT (CCITT, CCITT-TRUE, V-41-LSB, KERMIT), LJ1200, MAXIM-DOW (MAXIM), MCRF4XX, MODBUS, NRSC-5, OPENSAFETY-A OPENSAFETY-B, PROFIBUS (IEC-61158-2), RIELLO, SPI-FUJITSU (AUG-CCITT), T10-DIF, TELEDISK, TMS37157, UMTS (BUYPASS, VERIFONE), USB, XMODEM (ACORN, LTE, V-41-MSB, ZMODEM)

24bit CRC

BLE, FLEXRAY-A, FLEXRAY-B, INTERLAKEN, LTE-A, LTE-B, OPENPGP (CRC-24)

32bit CRC

AIXM (CRC-32Q), AUTOSAR, BASE91-D (CRC-32D), BZIP2 (AAL5, DECT-B, B-CRC-32), CD-ROM-EDC, CKSUM (POSIX), ISCSI (BASE91-C, CASTAGNOLI, INTERLAKEN, CRC-32C), ISO-HDLC (CRC-32, ADCCP, V-42, XZ, PKZIP), JAMCRC, MPEG-2, XFER