As a result, Google servers cant access your encryption keys and decrypt your data.
With Client-side encryption, customers can retain control over encryption keys and the identity service to access those keys.
For instance, the email body and attachments, including inline images are encrypted in Gmail.
That way, Google servers cant access your encryption keys and decrypt your data.
Further, you’ve got the option to compose your Gmail message and add email attachments as normal.
The company said that it will be accepting beta applications and allow listing customers over the next several weeks.
source: www.techworm.net