81559f9ad3
Patch adds LRW support for twofish-x86_64-3way by using lrw_crypt(). Patch has been tested with tcrypt and automated filesystem tests. Tcrypt benchmarks results (twofish-3way/twofish-asm speed ratios): Intel Celeron T1600 (fam:6, model:15, step:13): size lrw-enc lrw-dec 16B 0.99x 1.00x 64B 1.17x 1.17x 256B 1.26x 1.27x 1024B 1.30x 1.31x 8192B 1.31x 1.32x AMD Phenom II 1055T (fam:16, model:10): size lrw-enc lrw-dec 16B 1.06x 1.01x 64B 1.08x 1.14x 256B 1.19x 1.20x 1024B 1.21x 1.22x 8192B 1.23x 1.24x Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
24 lines
716 B
C
24 lines
716 B
C
#ifndef _CRYPTO_TWOFISH_H
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#define _CRYPTO_TWOFISH_H
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#include <linux/types.h>
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#define TF_MIN_KEY_SIZE 16
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#define TF_MAX_KEY_SIZE 32
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#define TF_BLOCK_SIZE 16
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struct crypto_tfm;
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/* Structure for an expanded Twofish key. s contains the key-dependent
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* S-boxes composed with the MDS matrix; w contains the eight "whitening"
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* subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note
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* that k[i] corresponds to what the Twofish paper calls K[i+8]. */
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struct twofish_ctx {
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u32 s[4][256], w[8], k[32];
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};
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int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
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unsigned int key_len, u32 *flags);
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int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len);
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#endif
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