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Commit 0ee4a969 authored Dec 25, 2008 by Herbert Xu

crypto: aes - Precompute tables



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>

parent ca38a814

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);