In my effort to remove crypto_alloc_cipher() invocations from non-crypto code, i ran into a DES call in the CIFS driver. This is addressed in patch #30. The other patches are cleanups for the quirky DES interface, and lots of duplication of the weak key checks etc. Changes since v3: - rebase onto today's cryptodev/master - update safexcel patch to address code that has been added in the mean time - replace memzero_explicit() calls with memset() if they don't operate on stack buffers - add T-b's from Horia and Corentin Changes since v2: - fixed another couple of build errors that I missed, apologies to the reviewers for failing to spot these - use/retain a simplified 'return verify() ?: setkey()' pattern where possible (as suggested by Horia) - ensure that the setkey() routines using the helpers return -EINVAL on weak keys when disallowed by the tfm's weak key policy - remove many pointless unlikely() annotations on ice-cold setkey() paths Changes since v1/RFC: - fix build errors in various drivers that i failed to catch in my initial testing - put all caam changes into the correct patch - fix weak key handling error flagged by the self tests, as reported by Eric. - add ack from Harald to patch #2 The KASAN error reported by Eric failed to reproduce for me, so I didn't include a fix for that. Please check if it still reproduces for you. Patch #1 adds new helpers to verify DES keys to crypto/internal.des.h The next 23 patches move all existing users of DES routines to the new interface. Patch #25 and #26 are preparatory patches for the new DES library introduced in patch #27, which replaces the various DES related functions exported to other drivers with a sane library interface. Patch #28 switches the x86 asm code to the new librar interface. Patch #29 removes code that is no longer used at this point. Code can be found here: https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/log/?h=des-cleanup-v4 Ard Biesheuvel (30): crypto: des/3des_ede - add new helpers to verify keys crypto: s390/des - switch to new verification routines crypto: sparc/des - switch to new verification routines crypto: atmel/des - switch to new verification routines crypto: bcm/des - switch to new verification routines crypto: caam/des - switch to new verification routines crypto: cpt/des - switch to new verification routines crypto: nitrox/des - switch to new verification routines crypto: ccp/des - switch to new verification routines crypto: ccree/des - switch to new verification routines crypto: hifn/des - switch to new verification routines crypto: hisilicon/des - switch to new verification routines crypto: safexcel/des - switch to new verification routines crypto: ixp4xx/des - switch to new verification routines crypto: cesa/des - switch to new verification routines crypto: n2/des - switch to new verification routines crypto: omap/des - switch to new verification routines crypto: picoxcell/des - switch to new verification routines crypto: qce/des - switch to new verification routines crypto: rk3288/des - switch to new verification routines crypto: stm32/des - switch to new verification routines crypto: sun4i/des - switch to new verification routines crypto: talitos/des - switch to new verification routines crypto: ux500/des - switch to new verification routines crypto: 3des - move verification out of exported routine crypto: des - remove unused function crypto: des - split off DES library from generic DES cipher driver crypto: x86/des - switch to library interface crypto: des - remove now unused __des3_ede_setkey() fs: cifs: move from the crypto cipher API to the new DES library interface arch/s390/crypto/des_s390.c | 25 +- arch/sparc/crypto/des_glue.c | 37 +- arch/x86/crypto/des3_ede_glue.c | 38 +- crypto/Kconfig | 8 +- crypto/des_generic.c | 945 +----------------- drivers/crypto/Kconfig | 28 +- drivers/crypto/atmel-tdes.c | 28 +- drivers/crypto/bcm/cipher.c | 82 +- drivers/crypto/caam/Kconfig | 2 +- drivers/crypto/caam/caamalg.c | 38 +- drivers/crypto/caam/caamalg_qi.c | 13 +- drivers/crypto/caam/caamalg_qi2.c | 13 +- drivers/crypto/caam/compat.h | 2 +- drivers/crypto/cavium/cpt/cptvf_algs.c | 26 +- drivers/crypto/cavium/nitrox/Kconfig | 2 +- .../crypto/cavium/nitrox/nitrox_skcipher.c | 4 +- drivers/crypto/ccp/ccp-crypto-des3.c | 7 +- drivers/crypto/ccree/cc_aead.c | 13 +- drivers/crypto/ccree/cc_cipher.c | 15 +- drivers/crypto/hifn_795x.c | 29 +- drivers/crypto/hisilicon/sec/sec_algs.c | 18 +- .../crypto/inside-secure/safexcel_cipher.c | 29 +- drivers/crypto/ixp4xx_crypto.c | 28 +- drivers/crypto/marvell/cipher.c | 22 +- drivers/crypto/n2_core.c | 26 +- drivers/crypto/omap-des.c | 25 +- drivers/crypto/picoxcell_crypto.c | 21 +- drivers/crypto/qce/ablkcipher.c | 55 +- drivers/crypto/rockchip/rk3288_crypto.h | 2 +- .../rockchip/rk3288_crypto_ablkcipher.c | 21 +- drivers/crypto/stm32/Kconfig | 2 +- drivers/crypto/stm32/stm32-cryp.c | 30 +- drivers/crypto/sunxi-ss/sun4i-ss-cipher.c | 26 +- drivers/crypto/sunxi-ss/sun4i-ss.h | 2 +- drivers/crypto/talitos.c | 34 +- drivers/crypto/ux500/Kconfig | 2 +- drivers/crypto/ux500/cryp/cryp_core.c | 31 +- fs/cifs/Kconfig | 2 +- fs/cifs/cifsfs.c | 1 - fs/cifs/smbencrypt.c | 18 +- include/crypto/des.h | 77 +- include/crypto/internal/des.h | 106 ++ lib/crypto/Makefile | 3 + lib/crypto/des.c | 902 +++++++++++++++++ 44 files changed, 1357 insertions(+), 1481 deletions(-) create mode 100644 include/crypto/internal/des.h create mode 100644 lib/crypto/des.c -- 2.17.1