# perldoc > CGI::Session::ID::md5

---
type: CommandReference
command: CGI::Session::ID::md5
mode: perldoc
section: 
source: perldoc
---

## Quick Reference

- `CGI::Session->new("id:md5", undef)` — Create a session using the MD5 ID generator

## Name

CGI::Session::ID::md5 - default CGI::Session ID generator

## Synopsis

perl
use CGI::Session;
$s = CGI::Session->new("id:md5", undef);
Generates MD5-encoded hexadecimal random IDs. No arguments are required.

## Options

None.

## Examples

The synopsis above is the primary usage example. No additional examples are provided in the original documentation.

## See Also

- [CGI::Session](https://perldoc.perl.org/CGI::Session) — for support and licensing

## Exit Codes

Not documented.