25 lines
796 B
C
25 lines
796 B
C
#ifndef TWOFISH_H
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#define TWOFISH_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#else
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#include <sys/types.h>
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#endif
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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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*/
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struct twofish_context {
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u_int32_t s[4][256], w[8], k[32];
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};
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typedef struct twofish_context twofish_context;
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int twofish_set_key(twofish_context *tf_ctx, const u_int8_t * in_key, int key_len);
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int twofish_encrypt(twofish_context *tf_ctx, const u_int8_t * in, u_int8_t * out);
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int twofish_decrypt(twofish_context * tf_ctx, const u_int8_t * in, u_int8_t * out);
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#endif /* TWOFISH_H */
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