crypto: aes - Precompute tables (0ee4a969) · Commits · 戴 / test

The tables used by the various AES algorithms are currently computed at run-time. This has created an init ordering problem because some AES algorithms may be registered before the tables have been initialised. This patch gets around this whole thing by precomputing the tables. Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au>

crypto/aes_generic.c

+1055 −90

File changed.

Preview size limit exceeded, changes collapsed.

include/crypto/aes.h

+4 −4

Original line number	Diff line number	Diff line
		@@ -23,10 +23,10 @@ struct crypto_aes_ctx {
		u32 key_dec[AES_MAX_KEYLENGTH_U32];
		};

		extern u32 crypto_ft_tab[4][256];
		extern u32 crypto_fl_tab[4][256];
		extern u32 crypto_it_tab[4][256];
		extern u32 crypto_il_tab[4][256];
		extern const u32 crypto_ft_tab[4][256];
		extern const u32 crypto_fl_tab[4][256];
		extern const u32 crypto_it_tab[4][256];
		extern const u32 crypto_il_tab[4][256];

		int crypto_aes_set_key(struct crypto_tfm tfm, const u8 in_key,
		unsigned int key_len);

Admin message