Hi, The following patch set is aimed to increase the performance of the CTR DRBG, especially when assembler implementations of the CTR AES mode are available. The patch set increases the performance by 10% for random numbers of 16 bytes and reaches 450% for random numbers reaching 4096 bytes (larger random numbers will even have more performance gains). The performance gains were measured when using ctr-aes-aesni. Note, when using the C implementation of the CTR mode (cipher/ctr.c), the performance of the CTR DRBG is slightly worse than it is now, but still it is much faster than the Hash or HMAC DRBGs. The patch set is CAVS tested. Stephan Mueller (4): crypto: CTR DRBG - use CTR AES instead of ECB AES crypto: DRBG - use aligned buffers crypto: CTR DRBG - use full CTR AES for update crypto: CTR DRBG - avoid duplicate maintenance of key crypto/Kconfig | 1 + crypto/drbg.c | 233 ++++++++++++++++++++++++++++++++++---------------- include/crypto/drbg.h | 12 +++ 3 files changed, 172 insertions(+), 74 deletions(-) -- 2.5.5 -- 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
