From 5427663f498e19b441277de72ce7a685511f247c Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Tue, 1 Apr 2008 20:58:51 +0800 Subject: [CRYPTO] aes: Export generic setkey The key expansion routine could be get little more generic, become a kernel doc entry and then get exported. Signed-off-by: Sebastian Siewior Tested-by: Stefan Hellermann Signed-off-by: Herbert Xu --- include/crypto/aes.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/crypto') diff --git a/include/crypto/aes.h b/include/crypto/aes.h index d480b76715a8..40008d67ee3d 100644 --- a/include/crypto/aes.h +++ b/include/crypto/aes.h @@ -14,11 +14,13 @@ #define AES_KEYSIZE_192 24 #define AES_KEYSIZE_256 32 #define AES_BLOCK_SIZE 16 +#define AES_MAX_KEYLENGTH (15 * 16) +#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32)) struct crypto_aes_ctx { u32 key_length; - u32 key_enc[60]; - u32 key_dec[60]; + u32 key_enc[AES_MAX_KEYLENGTH_U32]; + u32 key_dec[AES_MAX_KEYLENGTH_U32]; }; extern u32 crypto_ft_tab[4][256]; @@ -28,4 +30,6 @@ extern u32 crypto_il_tab[4][256]; int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len); +int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key, + unsigned int key_len); #endif -- cgit v1.2.2