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0ee4a96902
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>
36 lines
883 B
C
36 lines
883 B
C
/*
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* Common values for AES algorithms
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*/
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#ifndef _CRYPTO_AES_H
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#define _CRYPTO_AES_H
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#include <linux/types.h>
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#include <linux/crypto.h>
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#define AES_MIN_KEY_SIZE 16
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#define AES_MAX_KEY_SIZE 32
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#define AES_KEYSIZE_128 16
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#define AES_KEYSIZE_192 24
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#define AES_KEYSIZE_256 32
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#define AES_BLOCK_SIZE 16
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#define AES_MAX_KEYLENGTH (15 * 16)
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#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32))
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struct crypto_aes_ctx {
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u32 key_length;
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u32 key_enc[AES_MAX_KEYLENGTH_U32];
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u32 key_dec[AES_MAX_KEYLENGTH_U32];
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};
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extern const u32 crypto_ft_tab[4][256];
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extern const u32 crypto_fl_tab[4][256];
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extern const u32 crypto_it_tab[4][256];
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extern const u32 crypto_il_tab[4][256];
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int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
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unsigned int key_len);
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int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
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unsigned int key_len);
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#endif
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