Struct SecurityAssociation 

pub struct SecurityAssociation {
    pub spi: u16,
    pub service_type: ServiceType,
    pub iv_len: u8,
    pub sn_len: u8,
    pub pl_len: u8,
    pub mac_len: u8,
    pub sequence_number: u64,
    pub sequence_window: u64,
    pub auth_mask: Vec<u8, 2048>,
}

Configuration for a Security Association (SA).

An SA defines the security context for a virtual channel or MAP. Both sender and receiver must share identical SA parameters.

Fields

spi: u16

Security Parameter Index (1-65534; 0 and 65535 reserved).

service_type: ServiceType

The cryptographic service type.

iv_len: u8

Length of the IV field in the Security Header (0-32 bytes).

sn_len: u8

Length of the Sequence Number field (0-8 bytes).

pl_len: u8

Length of the Pad Length field (0-2 bytes).

mac_len: u8

Length of the MAC field in the Security Trailer (0-64 bytes).

sequence_number: u64

Current anti-replay sequence number (sender: next to send).

sequence_window: u64

Sequence number window for the receiver.

auth_mask: Vec<u8, 2048>

Authentication bit mask (applied before MAC computation). Sized to cover the largest expected frame.

Implementations

impl SecurityAssociation

pub fn header_size(&self) -> usize

Total size of the Security Header for this SA.

pub fn trailer_size(&self) -> usize

Total size of the Security Trailer for this SA.

pub fn overhead(&self) -> usize

Total overhead added by SDLS (header + trailer).

Trait Implementations

impl Clone for SecurityAssociation

fn clone(&self) -> SecurityAssociation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SecurityAssociation

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

Formats the value using the given formatter.