Struct AuthChallengeCell 

pub struct AuthChallengeCell {
    pub challenge: [u8; 32],
    pub methods: Vec<u16>,
    pub unused: Vec<u8>,
}

Authentication challenge cell.

AUTH_CHALLENGE cells are sent by relays to initiate optional client authentication. They contain a random challenge and list of supported authentication methods.

Wire Format

Variable-size cell:

[ CircID (0) ][ 130 (AUTH_CHALLENGE) ][ Length ]
[ Challenge (32 bytes) ][ Method Count (2) ][ Methods (2 bytes each) ]

Fields

challenge: [u8; 32]

Random challenge bytes (32 bytes).

methods: Vec<u16>

Supported authentication methods.

unused: Vec<u8>

Unused trailing bytes.

Implementations

impl AuthChallengeCell

pub fn new(methods: Vec<u16>) -> Self

Creates a new AUTH_CHALLENGE cell with random challenge.

Arguments

• methods - Supported authentication methods

pub fn with_challenge(challenge: [u8; 32], methods: Vec<u16>) -> Self

Creates an AUTH_CHALLENGE cell with a specific challenge.

Arguments

• challenge - 32-byte challenge value
• methods - Supported authentication methods

pub fn pack(&self, link_protocol: &LinkProtocol) -> Vec<u8>

Packs this cell into bytes for transmission.

pub fn unpack(payload: &[u8]) -> Result<Self, Error>

Unpacks an AUTH_CHALLENGE cell from payload bytes.

Errors

Returns Error::Protocol if payload is too short for challenge or declared number of methods.

Trait Implementations

impl Clone for AuthChallengeCell

fn clone(&self) -> AuthChallengeCell

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AuthChallengeCell

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

Formats the value using the given formatter.

impl PartialEq for AuthChallengeCell

fn eq(&self, other: &AuthChallengeCell) -> 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 StructuralPartialEq for AuthChallengeCell