linux

lib/crypto: aes: Add ECB support Add support for AES-ECB to the crypto library. This will be used to provide a streamlined implementation of the "ecb(aes)" crypto_skcipher algorithm. fs/crypto/keysetup_v1.c will also use aes_ecb_encrypt() directly. As usual, the architecture-optimized AES-ECB code will be migrated into the library as well (using the hooks provided in this commit), eliminating lots of repetitive boilerplate code. ECB is obsolete of course, but we need this for parity with the traditional API and to support some odd users of ECB in the kernel. Initial test coverage is provided by the crypto_skcipher support added in a later commit. I'm planning a KUnit test suite as well. Create a documentation file libcrypto-unauth-encryption.rst to hold the documentation for this and other unauthenticated encryption modes. Reviewed-by: Thomas Huth <thuth@redhat.com> Link: https://patch.msgid.link/20260715221153.246410-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> 2026-07-15 15:11:42 -07:00