Open Source Perl Encryption Software

Gpg4win is the official Windows distribution of the GnuPG encryption ecosystem, providing an accessible graphical environment for secure email and file protection. It packages the GnuPG engine together with user-friendly tools such as certificate management utilities, Windows Explorer integration, and Outlook plugins, enabling encryption workflows without requiring command-line expertise. The suite supports both OpenPGP and S/MIME standards, allowing organizations and individuals to secure communications using widely recognized cryptographic methods. Users can easily encrypt, decrypt, sign, and verify files or entire folders directly from the Windows interface, making the software suitable for everyday business use. Gpg4win emphasizes strong cryptographic defaults and compatibility with smart cards and enterprise certificate infrastructures.

A library implementing the AES (American Encryption Standard) or Rijndael algorithms, intended to provide a neat packaged solution for other projects to use. Package includes C and Intel Pentium/MMX assembler versions of AES, along with an extensive

Use of Michael Rabin's Information Dispersal Algorithm to provide secure, dispersed storage in a networked environment. For full download, please get both Math-FastGF2 and Crypt-IDA releases under the files link. See project wiki for more information.

NAC is a collection of tools for cryptography. The goal is to provide simple-to-use crypto tools (like an OTP, String and number generator, public key algorithm...) you can use under Linux, Windows...

A cascading encryption system that prevents reverse engineering of hashes even with the source code.

TXTCOD encodes and decodes any type of file with a modular algorithm named SAC.

An e-mail client with address book