[PATCH 0/3] crypto: Remove arch-optimized des and des3_ede code

Eric Biggers
2026-03-26T20:12:53Z

DES and 3DES are cryptographically obsolete and insecure by modern
standards. Continuing to maintain highly specific, complex assembly and
glue code for them, especially when the code isn't testable in QEMU
(s390 and sparc), is unnecessary and risky.

Thus, this series removes the architecture-optimized DES and 3DES code
for the three architectures that had it: s390, sparc, and x86.

This series is targeting cryptodev/master.

Eric Biggers (3):
crypto: s390 - Remove des and des3_ede code
crypto: sparc - Remove des and des3_ede code
crypto: x86 - Remove des and des3_ede code

arch/s390/configs/debug_defconfig | 1 -
arch/s390/configs/defconfig | 1 -
arch/s390/crypto/Kconfig | 16 -
arch/s390/crypto/Makefile | 1 -
arch/s390/crypto/des_s390.c | 502 ------------------
arch/sparc/crypto/Kconfig | 14 -
arch/sparc/crypto/Makefile | 2 -
arch/sparc/crypto/des_asm.S | 419 ---------------
arch/sparc/crypto/des_glue.c | 482 -----------------
arch/x86/crypto/Kconfig | 14 -
arch/x86/crypto/Makefile | 3 -
arch/x86/crypto/des3_ede-asm_64.S | 831 ------------------------------
arch/x86/crypto/des3_ede_glue.c | 391 --------------
13 files changed, 2677 deletions(-)
delete mode 100644 arch/s390/crypto/des_s390.c
delete mode 100644 arch/sparc/crypto/des_asm.S
delete mode 100644 arch/sparc/crypto/des_glue.c
delete mode 100644 arch/x86/crypto/des3_ede-asm_64.S
delete mode 100644 arch/x86/crypto/des3_ede_glue.c

base-commit: f9bbd547cfb98b1c5e535aab9b0671a2ff22453a
--
2.53.0