CRC-32 checksum
ID crc32
DatatypeNot PIIidentifier
Check value of CRC-32 (CRC-32/ISO-HDLC, polynomial 0x04C11DB7), the cyclic redundancy check that Ethernet, ZIP, gzip and PNG use to detect accidental corruption of data. It is not a cryptographic hash and does not protect against deliberate changes. It is usually written as 8 hexadecimal digits; some tools, such as MySQL CRC32() and Python zlib.crc32(), return it as an unsigned 32-bit integer instead.
- Parent datatype
- Hash by field name (generic)
hash - Categories
- Cryptographic identifiers
- Countries
- Global (not tied to a country)
- Languages
- Common to most languages
- Quality
- 85/100 · missing: mapping (Wikidata, Schema.org, ...), translation
- Metacrafter rules
- 2 rules (1 by field name, 1 by value)
crc32data, basic/crypto.yamlcrc32_by_fieldfield, basic/crypto.yaml
- Supported by tools
- metacrafter
Regular expression
^[0-9a-fA-F]{8}$Python re syntax.
Examples
| Value | Description |
|---|---|
| cbf43926 | CRC-32 of the string '123456789' (the standard check value) |
| 352441c2 | CRC-32 of the string 'abc' |
| cbf4392 invalid | one hex digit short (7 instead of 8) |
Sources
- wikipedia: https://en.wikipedia.org/wiki/Cyclic_redundancy_check
- other: https://reveng.sourceforge.io/crc-catalogue/17plus.htm#crc.cat.crc-32-iso-hdlc
Use this record
- Page URL:
http://registry.apicrafter.io/datatype/crc32 - JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
- Improve it: edit
data/datatypes/any/cryptography/crc32.yamlon GitHub