---
title: License for Digest::SHA
slug: ps/help/en_us/vtm/userguide/license-for-digestsha
docTags: 
createdAt: 2026-08-02T07:48:42.162Z
---

Virtual Traffic Manager contains code from Digest\::SHA – a Perl library used to calculate SHA message digests. The following copyright notice applies:

Version: 5.95

License summary: Perl Artistic License

Copyright notice:

Copyright (C) 2003-2015 Mark Shelor

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See the Perl Artistic License for details: [http://search.cpan.org/perldoc?perlartistic](http://search.cpan.org/perldoc?perlartistic)