# phpman > perldoc > Crypt::Checksum

## NAME
    [Crypt::Checksum](https://www.chedong.com/phpMan.php/perldoc/Crypt%3A%3AChecksum/markdown) - [internal only]

## DESCRIPTION
    You are probably looking for [Crypt::Checksum::CRC32](https://www.chedong.com/phpMan.php/perldoc/Crypt%3A%3AChecksum%3A%3ACRC32/markdown) or [Crypt::Checksum::Adler32](https://www.chedong.com/phpMan.php/perldoc/Crypt%3A%3AChecksum%3A%3AAdler32/markdown).