55a7e88f01
Now that the XTS template can wrap accelerated ECB modes, it can be used to implement Camellia in XTS mode as well, which turns out to be at least as fast, and sometimes even faster. Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ASM_X86_CAMELLIA_H
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#define ASM_X86_CAMELLIA_H
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#include <crypto/b128ops.h>
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#include <linux/crypto.h>
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#include <linux/kernel.h>
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#define CAMELLIA_MIN_KEY_SIZE 16
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#define CAMELLIA_MAX_KEY_SIZE 32
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#define CAMELLIA_BLOCK_SIZE 16
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#define CAMELLIA_TABLE_BYTE_LEN 272
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#define CAMELLIA_PARALLEL_BLOCKS 2
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struct crypto_skcipher;
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struct camellia_ctx {
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u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
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u32 key_length;
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};
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extern int __camellia_setkey(struct camellia_ctx *cctx,
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const unsigned char *key,
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unsigned int key_len);
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/* regular block cipher functions */
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asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
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bool xor);
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asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
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/* 2-way parallel cipher functions */
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asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
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bool xor);
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asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
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/* 16-way parallel cipher functions (avx/aes-ni) */
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asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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static inline void camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src)
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{
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__camellia_enc_blk(ctx, dst, src, false);
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}
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static inline void camellia_enc_blk_xor(const void *ctx, u8 *dst, const u8 *src)
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{
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__camellia_enc_blk(ctx, dst, src, true);
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}
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static inline void camellia_enc_blk_2way(const void *ctx, u8 *dst,
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const u8 *src)
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{
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__camellia_enc_blk_2way(ctx, dst, src, false);
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}
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static inline void camellia_enc_blk_xor_2way(const void *ctx, u8 *dst,
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const u8 *src)
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{
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__camellia_enc_blk_2way(ctx, dst, src, true);
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}
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/* glue helpers */
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extern void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src);
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extern void camellia_crypt_ctr(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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extern void camellia_crypt_ctr_2way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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#endif /* ASM_X86_CAMELLIA_H */
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