Selfdestruct: Secrets with One Read

Field notes

The sender can enter up to 100,000 bytes and choose whether an unopened link expires after five minutes, one hour, one day, or seven days. The page describes a split-path design in which the ciphertext and decryption key travel separately, with encryption performed on the device before transmission. For higher-risk handoffs, an optional passphrase can display a decoy message, while links are described as permanently deleting the secret after its first opening.