WinGPG is a free open source encryption and digital signature software for Windows. It allows users to securely exchange private messages and files using public-key cryptography.
WinGPG is a free, open source implementation of the OpenPGP standard for encrypting and digitally signing communications on Windows operating systems. Developed as a port of GnuPG, WinGPG utilizes public-key cryptography to provide cryptographic privacy and authentication.
With WinGPG, users can securely exchange private messages, files, and documents. It interfaces with email clients to encrypt outgoing messages and decrypt incoming encrypted mail. Digital signatures also allow verification of data integrity as well as confirmation that communications came from a trusted source.
Key features include symmetric encryption algorithms like AES and Twofish, RSA and DSA for public-key operations, support for X.509 certificates, smartcard integration, and more. Compatible with other OpenPGP implementations, WinGPG is licensed under the GNU GPL and available for download on Windows XP/Vista/7/8 in over 30 languages.