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crypto: Remove michael_mic from crypto_shash API

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Remove the "michael_mic" crypto_shash algorithm, since it's no longer
used.  Its only users were wireless drivers, which have now been
converted to use the michael_mic() function instead.

It makes sense that no other users ever appeared: Michael MIC is an
insecure algorithm that is specific to WPA TKIP, which itself was an
interim security solution to replace the broken WEP standard.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Link: https://patch.msgid.link/20260408030651.80336-7-ebiggers@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Eric Biggers
2026-04-07 20:06:51 -07:00
committed by Johannes Berg
parent 32a0e1c63c
commit 8c6d03b7a2
53 changed files with 0 additions and 296 deletions
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12
crypto/Kconfig
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@@ -916,18 +916,6 @@ config CRYPTO_MD5
help
MD5 message digest algorithm (RFC1321), including HMAC support.
config CRYPTO_MICHAEL_MIC
tristate "Michael MIC"
select CRYPTO_HASH
help
Michael MIC (Message Integrity Code) (IEEE 802.11i)
Defined by the IEEE 802.11i TKIP (Temporal Key Integrity Protocol),
known as WPA (Wif-Fi Protected Access).
This algorithm is required for TKIP, but it should not be used for
other purposes because of the weakness of the algorithm.
config CRYPTO_RMD160
tristate "RIPEMD-160"
select CRYPTO_HASH