How I Built Plausible Deniability Into a Browser Notepad

I've been building Flowvault , an encrypted browser notepad. "Encrypted notes in the browser" isn't new — ProtectedText, Standard Notes, PrivateBin have done it for years. What's unusual is what happens when someone asks for your passphrase. The threat "zero-knowledge" ignores Zero-knowledge encryption protects you from a compromised server. It does not protect you from anyone who can compel you to type your passphrase — border searches, subpoenas served on you, a jealous partner over your shoul