diff --git a/sys/dev/ipw/if_ipwreg.h b/sys/dev/ipw/if_ipwreg.h
--- a/sys/dev/ipw/if_ipwreg.h
+++ b/sys/dev/ipw/if_ipwreg.h
@@ -168,7 +168,7 @@
 	uint8_t		encrypt;
 	uint8_t		keyidx;
 	uint8_t		keysz;
-	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint8_t		key[IEEE80211_KEYBUF_128_SIZE]; /* XXX should be HW specific */
 	uint8_t		reserved[10];
 	uint8_t		src_addr[IEEE80211_ADDR_LEN];
 	uint8_t		dst_addr[IEEE80211_ADDR_LEN];
diff --git a/sys/dev/iwi/if_iwireg.h b/sys/dev/iwi/if_iwireg.h
--- a/sys/dev/iwi/if_iwireg.h
+++ b/sys/dev/iwi/if_iwireg.h
@@ -341,7 +341,7 @@
 #define IWI_DATA_XFLAG_QOS	0x10
 
 	uint8_t		wep_txkey;
-	uint8_t		wepkey[IEEE80211_KEYBUF_SIZE];
+	uint8_t		wepkey[IEEE80211_KEYBUF_128_SIZE]; /* XXX hardware specific */
 	uint8_t		rate;
 	uint8_t		antenna;
 	uint8_t		reserved3[10];
@@ -530,7 +530,7 @@
 	uint8_t	seq;
 	uint8_t	idx;
 	uint8_t	len;
-	uint8_t	key[IEEE80211_KEYBUF_SIZE];
+	uint8_t	key[IEEE80211_KEYBUF_128_SIZE]; /* XXX hardware specific */
 } __packed;
 
 /* structure for command IWI_CMD_SET_WME_PARAMS */
diff --git a/sys/dev/malo/if_malo.h b/sys/dev/malo/if_malo.h
--- a/sys/dev/malo/if_malo.h
+++ b/sys/dev/malo/if_malo.h
@@ -332,9 +332,9 @@
 	uint8_t			len;
 	uint8_t			flags;
 	uint16_t		index;
-	uint8_t			value[IEEE80211_KEYBUF_SIZE];
-	uint8_t			txmickey[IEEE80211_WEP_MICLEN];
-	uint8_t			rxmickey[IEEE80211_WEP_MICLEN];
+	uint8_t			value[IEEE80211_KEYBUF_128_SIZE]; /* XXX hardware */
+	uint8_t			txmickey[IEEE80211_WEP_MICLEN]; /* XXX hardware */
+	uint8_t			rxmickey[IEEE80211_WEP_MICLEN]; /* XXX hardware */
 	uint64_t		rxseqctr;
 	uint64_t		txseqctr;
 } __packed;
diff --git a/sys/dev/mwl/if_mwl.c b/sys/dev/mwl/if_mwl.c
--- a/sys/dev/mwl/if_mwl.c
+++ b/sys/dev/mwl/if_mwl.c
@@ -1661,10 +1661,10 @@
 		/* Copy in TKIP MIC after the 16 byte main key */
 		memcpy(hk.key.aes, ieee80211_crypto_get_key_data(k),
 		    ieee80211_crypto_get_key_len(k));
-		memcpy(hk.key.aes + IEEE80211_KEYBUF_SIZE,
+		memcpy(hk.key.aes + IEEE80211_KEYBUF_128_SIZE,
 		    ieee80211_crypto_get_key_txmic_data(k),
 		    8);
-		memcpy(hk.key.aes + IEEE80211_KEYBUF_SIZE + 8,
+		memcpy(hk.key.aes + IEEE80211_KEYBUF_128_SIZE + 8,
 		    ieee80211_crypto_get_key_rxmic_data(k),
 		    8);
 		break;
diff --git a/sys/dev/ral/rt2560reg.h b/sys/dev/ral/rt2560reg.h
--- a/sys/dev/ral/rt2560reg.h
+++ b/sys/dev/ral/rt2560reg.h
@@ -224,7 +224,7 @@
 	uint8_t		plcp_length_hi;
 	uint32_t	iv;
 	uint32_t	eiv;
-	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint8_t		key[IEEE80211_KEYBUF_128_SIZE]; /* XXX hardware */
 	uint32_t	reserved2[2];
 } __packed;
 
@@ -251,7 +251,7 @@
 	uint8_t		ta[IEEE80211_ADDR_LEN];
 	uint32_t	iv;
 	uint32_t	eiv;
-	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint8_t		key[IEEE80211_KEYBUF_128_SIZE]; /* XXX hardware */
 	uint32_t	reserved[2];
 } __packed;
 
diff --git a/sys/dev/usb/wlan/if_rsureg.h b/sys/dev/usb/wlan/if_rsureg.h
--- a/sys/dev/usb/wlan/if_rsureg.h
+++ b/sys/dev/usb/wlan/if_rsureg.h
@@ -478,14 +478,14 @@
 
 	uint8_t	cam_id;
 	uint8_t	grpkey;
-	uint8_t	key[IEEE80211_KEYBUF_SIZE];
+	uint8_t	key[IEEE80211_KEYBUF_128_SIZE]; /* XXX firmware */
 } __packed;
 
 /* Structure for R92S_CMD_SET_STA_KEY. */
 struct r92s_fw_cmd_set_key_mac {
 	uint8_t	macaddr[IEEE80211_ADDR_LEN];
 	uint8_t	algo;
-	uint8_t	key[IEEE80211_KEYBUF_SIZE];
+	uint8_t	key[IEEE80211_KEYBUF_128_SIZE]; /* XXX firmware */
 } __packed;
 
 /* Structures for R92S_EVENT_SURVEY/R92S_CMD_JOIN_BSS. */
diff --git a/sys/dev/usb/wlan/if_rum.c b/sys/dev/usb/wlan/if_rum.c
--- a/sys/dev/usb/wlan/if_rum.c
+++ b/sys/dev/usb/wlan/if_rum.c
@@ -2867,10 +2867,10 @@
 		return EIO;
 
 	if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
-		if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
+		if (rum_write_multi(sc, base + IEEE80211_KEYBUF_128_SIZE,
 		    ieee80211_crypto_get_key_txmic_data(k), 8))
 			return EIO;
-		if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
+		if (rum_write_multi(sc, base + IEEE80211_KEYBUF_128_SIZE + 8,
 		    ieee80211_crypto_get_key_rxmic_data(k), 8))
 			return EIO;
 	}
diff --git a/sys/dev/usb/wlan/if_rumreg.h b/sys/dev/usb/wlan/if_rumreg.h
--- a/sys/dev/usb/wlan/if_rumreg.h
+++ b/sys/dev/usb/wlan/if_rumreg.h
@@ -45,7 +45,7 @@
 /*
  * H/w encryption/decryption support
  */
-#define KEY_SIZE		(IEEE80211_KEYBUF_SIZE + IEEE80211_MICBUF_SIZE)
+#define KEY_SIZE		(IEEE80211_KEYBUF_128_SIZE + IEEE80211_MICBUF_128_SIZE)
 #define RT2573_ADDR_MAX		64
 #define RT2573_SKEY_MAX		4
 
diff --git a/sys/dev/wpi/if_wpireg.h b/sys/dev/wpi/if_wpireg.h
--- a/sys/dev/wpi/if_wpireg.h
+++ b/sys/dev/wpi/if_wpireg.h
@@ -466,7 +466,7 @@
 	uint8_t		reserved4;
 	uint16_t	ttak[5];
 	uint16_t	reserved5;
-	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint8_t		key[IEEE80211_KEYBUF_128_SIZE]; /* XXX firmware */
 	uint32_t	action;
 #define WPI_ACTION_SET_RATE	(1 << 2)
 
@@ -514,7 +514,7 @@
 #define WPI_CIPHER_TKIP		3
 #define WPI_CIPHER_WEP104	9
 
-	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint8_t		key[IEEE80211_KEYBUF_128_SIZE]; /* XXX firmware */
 	uint8_t		tkip[IEEE80211_WEP_MICLEN];
 	uint32_t	fnext;
 #define WPI_NEXT_STA_ID(id)	((id) << 8)
diff --git a/sys/net80211/ieee80211_crypto.h b/sys/net80211/ieee80211_crypto.h
--- a/sys/net80211/ieee80211_crypto.h
+++ b/sys/net80211/ieee80211_crypto.h
@@ -31,8 +31,24 @@
 /*
  * 802.11 protocol crypto-related definitions.
  */
-#define	IEEE80211_KEYBUF_SIZE	16
-#define	IEEE80211_MICBUF_SIZE	(8+8)	/* space for both tx+rx keys */
+
+/*
+ * Legacy 128 bit key size storage for WEP, TKIP, CCMP key sizes.
+ * This has been used to store keys in net80211 for various things
+ * (eg the rc4key in WEP) as well as driver definitions for their
+ * own hardware programming.
+ *
+ * This should eventually be used by the ioctl and drivers instead of
+ * IEEE80211_KEYBUF_SIZE as the key size will eventually grow.
+ */
+#define	IEEE80211_KEYBUF_128_SIZE	16
+#define	IEEE80211_MICBUF_128_SIZE	(8+8)	/* space for both tx+rx keys */
+
+/*
+ * Temporary definition whilst I clean up where this is still being used.
+ */
+#define	IEEE80211_KEYBUF_SIZE		IEEE80211_KEYBUF_128_SIZE
+#define	IEEE80211_MICBUF_SIZE		IEEE80211_MICBUF_128_SIZE
 
 /*
  * Old WEP-style key.  Deprecated.
diff --git a/sys/net80211/ieee80211_crypto_wep.c b/sys/net80211/ieee80211_crypto_wep.c
--- a/sys/net80211/ieee80211_crypto_wep.c
+++ b/sys/net80211/ieee80211_crypto_wep.c
@@ -348,7 +348,7 @@
 	struct wep_ctx *ctx = key->wk_private;
 	struct ieee80211vap *vap = ctx->wc_vap;
 	struct mbuf *m = m0;
-	uint8_t rc4key[IEEE80211_WEP_IVLEN + IEEE80211_KEYBUF_SIZE];
+	uint8_t rc4key[IEEE80211_WEP_IVLEN + IEEE80211_KEYBUF_128_SIZE];
 	uint8_t icv[IEEE80211_WEP_CRCLEN];
 	uint32_t i, j, k, crc;
 	size_t buflen, data_len;
@@ -431,7 +431,7 @@
 	struct wep_ctx *ctx = key->wk_private;
 	struct ieee80211vap *vap = ctx->wc_vap;
 	struct mbuf *m = m0;
-	uint8_t rc4key[IEEE80211_WEP_IVLEN + IEEE80211_KEYBUF_SIZE];
+	uint8_t rc4key[IEEE80211_WEP_IVLEN + IEEE80211_KEYBUF_128_SIZE];
 	uint8_t icv[IEEE80211_WEP_CRCLEN];
 	uint32_t i, j, k, crc;
 	size_t buflen, data_len;