Module security 

IEEE 802.11 security wrappers (WEP, TKIP, CCMP).

These wrappers handle the encryption header and trailer fields that appear in protected 802.11 data frames. They do NOT perform actual encryption/decryption — they provide parsing and building of the security header/trailer structures.

Structs

Dot11CCMP

CCMP (Counter Mode CBC-MAC Protocol / AES-CCM) encryption wrapper.

Dot11TKIP

TKIP (Temporal Key Integrity Protocol) encryption wrapper.

Dot11WEP

WEP (Wired Equivalent Privacy) encryption wrapper.

Enums

SecurityType

Security protocol type detected from the header.

Constants

CCMP_HEADER_LEN

CCMP header length: 8 bytes always.

CCMP_MIC_LEN

CCMP trailer length: MIC(8) = 8 bytes.

TKIP_HEADER_LONG

TKIP header length with Extended IV: 8 bytes.

TKIP_HEADER_SHORT

TKIP header length without Extended IV: 4 bytes.

TKIP_ICV_LEN

TKIP trailer length: MIC(8) + ICV(4) = 12 bytes. Note: The ICV is part of the encrypted payload, and the 8-byte MIC is also encrypted. The trailer for raw wire format is 4 bytes (ICV only).

WEP_HEADER_LEN

WEP header length: IV(3) + KeyID(1) = 4 bytes.

WEP_TRAILER_LEN

WEP trailer length: ICV(4) = 4 bytes.

Functions

detect_security_type

Detect the security type from the encryption header at the given offset.