CRC Any

To compute CRC values by providing the length of bits, expression, reflection, an initial value and a final xor value. It has many built-in CRC functions.

Usage

You can use create_crc associated function to create a CRC instance by providing the length of bits, expression, reflection, an initial value and a final xor value. For example, if you want to compute a CRC-24 value.

use crc_any::CRC;

let mut crc24 = CRC::create_crc(0x0000000000864CFB, 24, 0x0000000000B704CE, 0x0000000000000000, false);

crc24.digest(b"hello");

assert_eq!([71, 245, 138].to_vec(), crc24.get_crc_vec_be());
assert_eq!("0x47F58A", &crc24.to_string());

To simplify the usage, there are several common versions of CRC whose computing functions are already built-in.

• crc3gsm
• crc4itu
• crc4interlaken
• crc5epc
• crc5itu
• crc5usb
• crc6cdma2000_a
• crc6cdma2000_b
• crc6darc
• crc6gsm
• crc6itu
• crc7
• crc7umts
• crc8
• crc8cdma2000
• crc8darc
• crc8dvb_s2
• crc8ebu
• crc8icode
• crc8itu
• crc8maxim
• crc8rohc
• crc8wcdma
• crc10
• crc10cdma2000
• crc10gsm
• crc11
• crc12
• crc12cdma2000
• crc12gsm
• crc13bbc
• crc14darc
• crc14gsm
• crc15can
• crc15mpt1327
• crc16
• crc16ccitt_false
• crc16aug_ccitt
• crc16buypass
• crc16cdma2000
• crc16dds_110
• crc16dect_r
• crc16dect_x
• crc16dnp
• crc16en_13757
• crc16genibus
• crc16maxim
• crc16mcrf4cc
• crc16riello
• crc16t10_dif
• crc16teledisk
• crc16tms13157
• crc16usb
• crc_a
• crc16kermit
• crc16modbus
• crc16_x25
• crc16xmodem
• crc17can
• crc21can
• crc24
• crc24ble
• crc24flexray_a
• crc24flexray_b
• crc24lte_a
• crc24lte_b
• crc24os9
• crc30cdma
• crc32
  • It also called crc32b in mhash.
• crc32mhash
  • mhash is a common library which has two weird versions of CRC32 called crc32 and crc32b. crc32 and crc32mhash in this module are crc32b and crc32 in mhash respectively.
• crc32bzip2
• crc32c
• crc32d
• crc32mpeg2
• crc32posix
• crc32q
• crc32jamcrc
• crc32xfer
• crc40gsm
• crc64
• crc64iso
• crc64we
• crc64jones

For instance,

use crc_any::CRC;

let mut crc64 = CRC::crc64();

crc64.digest(b"hello");

assert_eq!([64, 84, 74, 48, 97, 55, 182, 236].to_vec(), crc64.get_crc_vec_be());
assert_eq!("0x40544A306137B6EC", &crc64.to_string());

After getting a CRC value, you can still use the digest method to continue computing the next CRC values.

Heapless Support

To make sure this crate will not use heap memory allocation, you can disable the default features.

[dependencies.crc-any]
version = "*"
default-features = false

After doing that, the get_crc_vec_be and get_crc_vec_le methods can not be used. But if you still need this crate to return a Vec without dynamic allocation, you can enable the heapless feature to make the get_crc_heapless_vec_be and get_crc_heapless_vec_le methods available.

[dependencies.crc-any]
version = "*"
default-features = false
features = ["heapless"]

Crates.io

https://crates.io/crates/crc-any

Documentation

https://docs.rs/crc-any

License

MIT