Struct Dot11TKIP 

pub struct Dot11TKIP {
    pub offset: usize,
}

TKIP (Temporal Key Integrity Protocol) encryption wrapper.

Format:

[TSC1(1)] [WEPSeed(1)] [TSC0(1)] [KeyID/ExtIV(1)] [TSC2(1) TSC3(1) TSC4(1) TSC5(1)] [Encrypted Data...] [ICV(4)]

The KeyID/ExtIV byte:

• Bits 0-4: Reserved
• Bit 5: ExtIV flag (always 1 for TKIP)
• Bits 6-7: Key ID

TSC (TKIP Sequence Counter) is a 48-bit value constructed from TSC0..TSC5.

Fields

offset: usize

Implementations

impl Dot11TKIP

pub fn new(offset: usize) -> Self

pub fn validate(buf: &[u8], offset: usize) -> Result<(), FieldError>

Validate buffer length for TKIP header.

pub fn tsc1(&self, buf: &[u8]) -> Result<u8, FieldError>

TSC1 (byte 0 of TKIP header).

pub fn wep_seed(&self, buf: &[u8]) -> Result<u8, FieldError>

WEP Seed (byte 1 of TKIP header).

pub fn tsc0(&self, buf: &[u8]) -> Result<u8, FieldError>

TSC0 (byte 2 of TKIP header).

pub fn ext_iv(&self, buf: &[u8]) -> Result<bool, FieldError>

Check if Extended IV flag is set (bit 5 of byte 3).

pub fn key_id(&self, buf: &[u8]) -> Result<u8, FieldError>

Key ID (bits 6-7 of byte 3).

pub fn tsc_high(&self, buf: &[u8]) -> Result<[u8; 4], FieldError>

TSC2-TSC5 (bytes 4-7, only present if ExtIV is set).

pub fn tsc(&self, buf: &[u8]) -> Result<u64, FieldError>

Full 48-bit TSC (TKIP Sequence Counter). TSC = TSC0 | (TSC1 << 8) | (TSC2 << 16) | (TSC3 << 24) | (TSC4 << 32) | (TSC5 << 40)

pub fn header_len(&self, buf: &[u8]) -> usize

Header length: 4 bytes (no ExtIV) or 8 bytes (with ExtIV).

pub fn trailer_len(&self) -> usize

Trailer length (ICV = 4 bytes).

pub fn build_header(tsc: u64, key_id: u8) -> Vec<u8>

Build a TKIP header with Extended IV.

Trait Implementations

impl Clone for Dot11TKIP

fn clone(&self) -> Dot11TKIP

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Dot11TKIP

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

Formats the value using the given formatter.