Function pamoja_session_seal 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_session_seal(
    session: *mut PamojaSession,
    buf: *mut u8,
    len: usize,
    aad: *const u8,
    aad_len: usize,
    out_sealed: *mut PamojaSealed,
) -> PamojaStatus

Seals a message for the peer, encrypting it in place.

The associated data is authenticated but not encrypted, so it stays readable on the wire yet cannot be altered: a device identifier or a routing header belongs there. On success buf holds the ciphertext and out_sealed holds the counter and tag to send with it.

Arguments

• session - the session.
• buf - the plaintext, replaced by the ciphertext of equal length.
• len - the length of buf.
• aad - associated data to authenticate alongside the message.
• aad_len - the length of aad.
• out_sealed - receives the counter and tag.

Returns

PamojaStatus::Ok on success.

Safety

session must be a live handle from pamoja_session_establish, buf must point to at least len readable and writable bytes or be null when len is 0, aad must point to at least aad_len readable bytes or be null when aad_len is 0, and out_sealed must be writable.