GPG4Browsers is a prototype implementation of the OpenPGP Message Format [RFC 4880]. The implementation is currently written as Chrome Browser Extension with a Googlemail integration for encrypting, decrypting or signing emails.

The OpenPGP implementation supports all asymmetric, symmetric ciphers (except IDEA) and hash functions specified in the standard and implements the following use cases:

  • Encryption and description of message
  • Sign and verify message signatures
  • Import and export of certificates