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View/edit binary Protocol Buffers messages
Header for .sear archives
Random UUID (i.e. nonce) which uniquely identifies this particular file. This is also used as the nonce for encryption (indirectly via HKDF).
Segment size for the segmented AEAD construction used to encrypt the file
Encryption key fingerprint (in CryptoURI format; optional)
Signing public key fingerprint (in CryptoURI format; optional)