Enum ScsType 

#[repr(u8)]
pub enum ScsType {
    Scs11 = 17,
    Scs12 = 18,
    Scs13 = 19,
    Scs14 = 20,
    Scs15 = 21,
    Scs16 = 22,
    Scs17 = 23,
    Scs18 = 24,
}

Security block type byte (SEC_BLK_TYPE).

Spec: §5.9, Table 3 (cross-referenced via Annex D)

Variants

Scs11 = 17

SCS_11 — ACU → PD. Begin SC session, carries RND.A.

Scs12 = 18

SCS_12 — PD → ACU. cUID + RND.B + client cryptogram.

Scs13 = 19

SCS_13 — ACU → PD. Server cryptogram.

Scs14 = 20

SCS_14 — PD → ACU. Initial R-MAC.

Scs15 = 21

SCS_15 — ACU → PD. Secure message, MAC only.

Scs16 = 22

SCS_16 — PD → ACU. Secure reply, MAC only.

Scs17 = 23

SCS_17 — ACU → PD. Secure message, encrypted DATA + MAC.

Scs18 = 24

SCS_18 — PD → ACU. Secure reply, encrypted DATA + MAC.

Implementations

impl ScsType

pub const fn from_byte(b: u8) -> Result<Self, Error>

Parse from byte.

pub const fn as_byte(self) -> u8

Raw byte value.

pub const fn has_mac(self) -> bool

true if this SCS implies a 4-byte MAC trailer before the checksum / CRC.

Spec: §5.9

pub const fn is_encrypted(self) -> bool

true if this SCS implies the DATA payload is AES-CBC encrypted.

pub const fn is_handshake(self) -> bool

true if this SCS is part of the handshake (no DATA encryption, no MAC).

Trait Implementations

impl Clone for ScsType

fn clone(&self) -> ScsType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScsType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ScsType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ScsType

fn eq(&self, other: &ScsType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ScsType

impl Eq for ScsType

impl StructuralPartialEq for ScsType