9 min read By NT²
Challenge–response, not bearer email
Tech
Cloud services often treat an email inbox as the root of an account. An encrypted vault needs a different proof: control of a signing key, shown by answering a one-time challenge.
Tagged: authentication
3 posts
10 min read By NT²
The account database must not become a password oracle
Tech
An account table can contain no plaintext vault items and still create a dangerous password-testing surface. We removed the columns that could turn a database copy into an offline guessing or recovery system.
9 min read By NT²
Unlocking a local vault is not logging in to the cloud
Tech
One screen can make two security events look like a single login. We keep them separate because opening encrypted data and proving an identity to a server are different jobs with different risks.