Gmail client-side encryption: A deep dive (Google Online Security Blog)
Nicolas Lidzborski, Principal Engineer and Jaishankar Sundararaman, Sr. Director of Engineering, Google Workspace In February, we expanded Google Workspace client-side encryption (CSE) capabilities to include Gmail and Calendar in addition to Drive, Docs, Slides, Sheets, and Meet. CSE in Gmail was designed to provide commercial and public sector organizations an additional layer of confidentiality and data integrity protection beyond the existing encryption offered by default in Workspace. When CSE is enabled, email messages are protected using encryption keys that are fully under the customer’s control. The data is encrypted on the client device before it’s sent to Google servers that do not have access to the encryption keys, which means the data is indecipherable to us–we have no technical ability to access it. The entire process happens in the browser…