struct ieee80211_key_conf
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## Name

struct ieee80211_key_conf — key information

## Synopsis

    struct ieee80211_key_conf {
      u32 cipher;
      u8 icv_len;
      u8 iv_len;
      u8 hw_key_idx;
      u8 flags;
      s8 keyidx;
      u8 keylen;
      u8 key[0];
    };

## Members

cipher

  The key's cipher suite selector.

icv_len

  The ICV length for this key type

iv_len

  The IV length for this key type

hw_key_idx

  To be set by the driver, this is the key index the driver wants to be given when a frame is transmitted and needs to be encrypted in hardware.

flags

  key flags, see enum ieee80211_key_flags.

keyidx

  the key index (0-3)

keylen

  key material length

key[0]

  key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)

## Description

This key information is given by mac80211 to the driver by the `set_key` callback in struct ieee80211_ops.

## data block

- Temporal Encryption Key (128 bits) - Temporal Authenticator Tx MIC Key (64 bits) - Temporal Authenticator Rx MIC Key (64 bits)

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