{"categories":[{"label":"Scientific/Engineering","url":"https://skillfed.io/packages/category/scientific-engineering/2"},{"label":"Utilities","url":"https://skillfed.io/packages/category/utilities/3"},{"label":"Embedded Systems","url":"https://skillfed.io/packages/category/software-development-embedded-systems"}],"enrichment":{"capability":"Calculates CRC and checksum values from binary data using parametrized algorithms from the CRC catalogue, supporting dozens of standard CRC variants and additive/XOR checksums.","skillfed_tags":["crc-checksum","data-integrity","embedded-systems"],"use_cases":["Validate data integrity in embedded device communication protocols (e.g., CAN bus, Modbus, Bluetooth LE)","Compute checksums for file transfer or storage systems to detect corruption","Implement CRC checks in custom binary protocols or firmware update mechanisms","Verify data packets in IoT or sensor networks using standard CRC variants","Generate checksums for configuration or firmware images in embedded applications"],"what_it_does":"crccheck is a pure-Python library for computing cyclic redundancy checks (CRCs) and checksums on binary data. It implements all CRC variants from the Catalogue of parametrised CRC algorithms, including CRC-3 through CRC-82 in various standard forms (CRC-32/MPEG-2, CRC-16/MODBUS, CRC-8/AUTOSAR, etc.), plus additive and XOR checksums in 8, 16, and 32-bit widths. You instantiate a CRC class by name (e.g., Crc32, CrcXmodem) or use the general Crc class with custom parameters, then call calc() for one-shot computation or process() to accumulate results across multiple data buffers before calling final(), finalbytes(), or finalhex().\n\nThe library is designed for embedded systems, protocol implementations, and data-integrity validation where standard CRC algorithms are required. It has no external dependencies and runs on Python 3.7 through 3.13, making it portable across modern Python environments. The API is straightforward: pass binary data (bytes, bytearray, or iterables of integers) and retrieve the result in integer, hex, or byte form.","worth_installing":"Yes. crccheck is a stable, dependency-free library for a well-defined task (standard CRC and checksum computation). It supports a comprehensive set of algorithms, has no security vulnerabilities, and carries a permissive MIT license. The aging maintenance status (400 days since last release) is not a blocker for a mature, narrow-scope library\u2014it suggests the code is stable rather than abandoned. Install it if you need standard CRC calculations; avoid it only if you require active feature development or real-time performance guarantees."},"id":"crccheck","links":{"html":"https://skillfed.io/packages/crccheck","md":"https://skillfed.io/packages/crccheck.md","pypi":"https://pypi.org/project/crccheck/"},"maintenance":{"status":"aging"},"meta":{"latest_release":"2025-07-10","license_spdx":null,"license_treatment":"permissive","name":"crccheck","python_support":"unspecified","summary":"Calculation library for CRCs and checksums"},"popularity":{"monthly_downloads":2207546,"position":3210,"tier":"top_5000"},"security":{"n_vulnerabilities":0},"version":"1.3.1"}