A project I have been somehow involved in (altough not much for a lack of time) http://www.mailvelope.com/ http://www.mailvelope.com/ Encryption in GMail and

A project I have been somehow involved in (altough not much for a lack of time) http://www.mailvelope.com/ http://www.mailvelope.com/ Encryption in GMail and maybe other webmails for chrome/chromium. It is surprisingly secure (see http://www.mailvelope.com/blog/security-audit-and-v0.6-release http://www.mailvelope.com/blog/security-audit-and-v0.6-relea... ) and super easy to use. It doesn't support signing and signature verification though.