Module encryption 

Enums

DecryptOutcome

Outcome of try_decrypt_message_typed — distinguishes a body that genuinely AEAD-decrypted from one that was merely passed through (plaintext or a fail-open decrypt failure).

Functions

decrypt_body

BRC-78 decrypt an encrypted message body from a sender.

encrypt_body

BRC-78 encrypt a message body for a recipient.

generate_message_id

Generate a deterministic HMAC-based message ID for idempotency.

try_decrypt_message

Try to decrypt a message body, with graceful fallback for plaintext.

try_decrypt_message_typed

Typed sibling of try_decrypt_message that additionally surfaces whether the body genuinely AEAD-decrypted.