This series is primarily directed at improving the performance and security of CCM on the Rasperry Pi 3. This involves splitting the MAC handling of CCM into a separate driver so that we can efficiently replace it by something else using the ordinary algo resolution machinery. Patch #1 adds some testcases for cbcmac(aes), which will be introduced later. Patch #2 replaces the open coded CBC MAC hashing routines in the CCM driver with calls to a cbcmac() hash, and implements a template for producing such transforms. This eliminates all the fuzzy scatterwalk code as well. Patch #3 implements cbcmac(aes) using NEON on arm64 Patch #4 is an RFC patch that implements ctr(aes) and cbcmac(aes) in a way that is intended to eliminate observeable data dependent latencies in AES processing, by replacing the usual 16 KB of lookup tables with a single Sbox that is prefetched before processing each block. It is 50% slower than generic AES, but this may be acceptable in many cases. Ard Biesheuvel (4): crypto: testmgr - add test cases for cbcmac(aes) crypto: ccm - switch to separate cbcmac driver crypto: arm64/aes - add NEON and Crypto Extension CBC-MAC driver crypto: aes - add generic time invariant AES for CTR/CCM/GCM arch/arm64/crypto/aes-glue.c | 102 ++++++ arch/arm64/crypto/aes-modes.S | 19 + crypto/Kconfig | 15 + crypto/Makefile | 1 + crypto/aes_ti.c | 314 ++++++++++++++++ crypto/ccm.c | 373 +++++++++++++------- crypto/testmgr.c | 7 + crypto/testmgr.h | 58 +++ 8 files changed, 753 insertions(+), 136 deletions(-) create mode 100644 crypto/aes_ti.c -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
