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authorArd Biesheuvel <ardb@kernel.org>2020-09-11 17:11:03 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2020-09-18 10:20:13 +0300
commit1674aea5f080c9f61424354f6870a548770eb07e (patch)
tree7293b54dfd212d5caff6ebfe45f7182aadb8ad1b /crypto/Kconfig
parentdbc756fcf7f3b843a3c96ac4d9522a86a757ae58 (diff)
downloadlinux-1674aea5f080c9f61424354f6870a548770eb07e.tar.xz
crypto: Kconfig - mark unused ciphers as obsolete
We have a few interesting pieces in our cipher museum, which are never used internally, and were only ever provided as generic C implementations. Unfortunately, we cannot simply remove this code, as we cannot be sure that it is not being used via the AF_ALG socket API, however unlikely. So let's mark the Anubis, Khazad, SEED and TEA algorithms as obsolete, which means they can only be enabled in the build if the socket API is enabled in the first place. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
-rw-r--r--crypto/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index e85d8a059489..fac10143d23f 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1185,6 +1185,7 @@ config CRYPTO_AES_PPC_SPE
config CRYPTO_ANUBIS
tristate "Anubis cipher algorithm"
+ depends on CRYPTO_USER_API_ENABLE_OBSOLETE
select CRYPTO_ALGAPI
help
Anubis cipher algorithm.
@@ -1424,6 +1425,7 @@ config CRYPTO_FCRYPT
config CRYPTO_KHAZAD
tristate "Khazad cipher algorithm"
+ depends on CRYPTO_USER_API_ENABLE_OBSOLETE
select CRYPTO_ALGAPI
help
Khazad cipher algorithm.
@@ -1487,6 +1489,7 @@ config CRYPTO_CHACHA_MIPS
config CRYPTO_SEED
tristate "SEED cipher algorithm"
+ depends on CRYPTO_USER_API_ENABLE_OBSOLETE
select CRYPTO_ALGAPI
help
SEED cipher algorithm (RFC4269).
@@ -1613,6 +1616,7 @@ config CRYPTO_SM4
config CRYPTO_TEA
tristate "TEA, XTEA and XETA cipher algorithms"
+ depends on CRYPTO_USER_API_ENABLE_OBSOLETE
select CRYPTO_ALGAPI
help
TEA cipher algorithm.