Linux kernel mainline source http://mirrors.hust.edu.cn/git/linux.git/atom?h=master 2026-07-20T00:34:16+00:00 2026-07-20T00:34:16+00:00 Eric Biggers ebiggers@kernel.org 2026-07-15T22:11:44+00:00 urn:sha1:1f2d69a31a086960f67bda8d2dfcf19256245c32 Add support for AES-CTR and AES-XCTR to the crypto library. These will be used to provide streamlined implementations of the "ctr(aes)" and "xctr(aes)" crypto_skcipher algorithms. Most users of "ctr(aes)" will also be able to switch to the library, which as usual will be simpler and faster, e.g.: - net/mac80211/fils_aead.c - net/mac802154/llsec.c As usual, the architecture-optimized AES-CTR and AES-XCTR code will be migrated into the library as well (using the hooks provided in this commit), eliminating lots of repetitive boilerplate code. This is also a prerequisite for supporting AES-GCM, AES-CCM, and AES-HCTR2 in the crypto library. Initial test coverage is provided by the crypto_skcipher support added in a later commit. I'm planning a KUnit test suite as well. Reviewed-by: Thomas Huth <thuth@redhat.com> Link: https://patch.msgid.link/20260715221153.246410-5-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>