Module secure 

Secure Channel — Annex D.

Spec: Annex D

Three layers:

1. crypto — primitives: AES-128, key derivation, cryptograms.
2. mac — CBC-MAC with the S-MAC1/S-MAC2 swap on the final block.
3. session — type-state machine wrapping the above into a usable API.

Padding is described in pad.

Re-exports

pub use frame::Direction;

pub use frame::seal;

pub use frame::unseal;

pub use session::Challenged;

pub use session::Cryptogrammed;

pub use session::Disconnected;

pub use session::Secure;

pub use session::Session;

Modules

cipher

AES-128-CBC encryption / decryption of SCS_17/SCS_18 DATA payloads.

crypto

AES-128 primitives, key derivation, cryptograms.

frame

Helpers for constructing and parsing fully-secured frames.

mac

CBC-MAC with rolling ICV and the S-MAC1/S-MAC2 swap on the final block.

pad

0x80-padding rules used by the secure channel.

session

Type-state secure-channel state machine.

Constants

SCBK_D

Default install key (SCBK-D): bytes 0x30..=0x3F.