[PATCH v2 7/7] AES for PPC/SPE - kernel config
From: Markus Stockhausen <hidden>
Date: 2015-02-22 09:00:12
Also in:
linuxppc-dev
Subsystem:
crypto api, ibm power vmx cryptographic instructions, linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Herbert Xu, "David S. Miller", Breno Leitão, Nayna Jain, Paulo Flabiano Smorigo, Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
[PATCH v2 7/7] AES for PPC/SPE - kernel config Integrate the module into the kernel configuration v2 changes - better explanation of use case in help text Signed-off-by: Markus Stockhausen <redacted>
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index a07e763..1698fb9 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile@@ -4,8 +4,10 @@ # Arch-specific CryptoAPI modules. # +obj-$(CONFIG_CRYPTO_AES_PPC_SPE) += aes-ppc-spe.o obj-$(CONFIG_CRYPTO_SHA1_PPC) += sha1-powerpc.o obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o +aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes_spe_glue.o sha1-powerpc-y := sha1-powerpc-asm.o sha1.o sha256-ppc-spe-y := sha256-spe-asm.o sha256_spe_glue.o
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 86d35be..f34d136 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig@@ -857,6 +857,19 @@ config CRYPTO_AES_ARM_BS 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
Attachments
- InterScan_Disclaimer.txt [text/plain] 1694 bytes · preview