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: cryptography
3 posts
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.
9 min read By NT²
One key per object: envelope encryption inside NT² Vault
Tech
A vault can encrypt everything with one key and still claim that its data is encrypted. We wanted a more useful boundary: each item and attachment gets its own content encryption key, while the vault key protects those keys.