crypto: powerpc/aes - kernel config
Integrate the module into the kernel configuration
Signed-off-by: Markus Stockhausen <stockhausen@collogia.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 2ca8d15..14106b2 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -866,6 +866,19 @@
This implementation does not rely on any lookup tables so it is
believed to be invulnerable to cache timing attacks.
+config CRYPTO_AES_PPC_SPE
+ tristate "AES cipher algorithms (PPC SPE)"
+ depends on PPC && SPE
+ help
+ AES cipher algorithms (FIPS-197). Additionally the acceleration
+ for popular block cipher modes ECB, CBC, CTR and XTS is supported.
+ This module should only be used for low power (router) devices
+ without hardware AES acceleration (e.g. caam crypto). It reduces the
+ size of the AES tables from 16KB to 8KB + 256 bytes and mitigates
+ timining attacks. Nevertheless it might be not as secure as other
+ architecture specific assembler implementations that work on 1KB
+ tables or 256 bytes S-boxes.
+
config CRYPTO_ANUBIS
tristate "Anubis cipher algorithm"
select CRYPTO_ALGAPI