kernel/linux.git/crypto/df_sp80090a.c, branch linux-7.1.y

crypto: drbg - Use new AES library API

2026-01-15T22:09:08+00:00

Switch from the old AES library functions (which use struct crypto_aes_ctx) to the new ones (which use struct aes_enckey). This eliminates the unnecessary computation and caching of the decryption round keys. The new AES en/decryption functions are also much faster and use AES instructions when supported by the CPU. Note that in addition to the change in the key preparation function and the key struct type itself, the change in the type of the key struct results in aes_encrypt() (which is temporarily a type-generic macro) calling the new encryption function rather than the old one. Acked-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20260112192035.10427-30-ebiggers@kernel.org Signed-off-by: Eric Biggers

crypto: drbg - make drbg_{ctr_bcc,kcapi_sym}() return void

2025-10-17T08:10:27+00:00

drgb_kcapi_sym() always returns 0, so make it return void instead. Consequently, make drbg_ctr_bcc() return void too. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. [Sergey: fixed the subject, refreshed the patch] Signed-off-by: Karina Yankevich Signed-off-by: Sergey Shtylyov Signed-off-by: Herbert Xu

crypto: drbg - Replace AES cipher calls with library calls

2025-10-17T08:03:57+00:00

Replace aes used in drbg with library calls. Signed-off-by: Harsh Jain Signed-off-by: Herbert Xu

crypto: drbg - Export CTR DRBG DF functions

2025-10-17T08:03:57+00:00

Export drbg_ctr_df() derivative function to new module df_sp80090. Signed-off-by: Harsh Jain Signed-off-by: Herbert Xu

kernel/linux.git/crypto/df_sp80090a.c, branch linux-7.1.y

crypto: drbg - Use new AES library API

crypto: drbg - make drbg_{ctr_bcc,kcapi_sym}() return *void*

crypto: drbg - Replace AES cipher calls with library calls

crypto: drbg - Export CTR DRBG DF functions

crypto: drbg - make drbg_{ctr_bcc,kcapi_sym}() return void