From mboxrd@z Thu Jan 1 00:00:00 1970 From: ard.biesheuvel@linaro.org (Ard Biesheuvel) Date: Fri, 4 Oct 2013 21:03:36 +0200 Subject: [PATCH v3 0/3] ARM: NEON based fast(er) AES in CBC/CTR/XTS modes Message-ID: <1380913419-13296-1-git-send-email-ard.biesheuvel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This is v3 of a series implementing a faster and more secure AES implementation based on bit slicing using NEON instructions. Changes since v2: - included the Perl script that generates the .S file, and added some make rules so that modifications to the Perl script will carry over to the .S file automatically without imposing Perl for all users; Changes since v1: - implemented a suggestion by Jussi Kivilinna which substantially improves decryption performance, decryption speedup is now 25% on Cortex-A15 (up from 5 - 10%), encryption speedup is still at 45%; - fixed a potential issue with tail blocks in CTR mode; - copied some comments about the origin of this code and the expected power efficiency from the cover letter to the commit log of patch 3; - some cosmetic changes. This code passes the builtin test 'modprobe tcrypt.ko mode=10' in both ARM and Thumb-2 modes. The core code has been adopted from the OpenSSL project (in collaboration with the original author, on cc). For ease of maintenance, this version is identical to the upstream OpenSSL code, i.e., all modifications that were required to make it suitable for inclusion into the kernel have been made upstream. This series still depends on commit a62b01cd (crypto: create generic version of ablk_helper) which I omitted this time but which can be found in the cryptodev tree or in linux-next. Ard Biesheuvel (3): ARM: pull in from asm-generic ARM: move AES typedefs and function prototypes to separate header ARM: add support for bit sliced AES using NEON instructions arch/arm/crypto/Makefile | 14 +- arch/arm/crypto/aes_glue.c | 22 +- arch/arm/crypto/aes_glue.h | 19 + arch/arm/crypto/aesbs-core.S_shipped | 2544 ++++++++++++++++++++++++++++++++++ arch/arm/crypto/aesbs-glue.c | 434 ++++++ arch/arm/crypto/bsaes-armv7.pl | 2467 +++++++++++++++++++++++++++++++++ arch/arm/include/asm/Kbuild | 1 + crypto/Kconfig | 16 + 8 files changed, 5499 insertions(+), 18 deletions(-) create mode 100644 arch/arm/crypto/aes_glue.h create mode 100644 arch/arm/crypto/aesbs-core.S_shipped create mode 100644 arch/arm/crypto/aesbs-glue.c create mode 100644 arch/arm/crypto/bsaes-armv7.pl -- 1.8.1.2