src/libfreeswan/libcrypto/libtwofish/twofish.h

   1 #ifndef TWOFISH_H
   2 #define TWOFISH_H
   3 #ifdef __KERNEL__
   4 #include <linux/types.h>
   5 #else
   6 #include <sys/types.h>
   7 #endif
   8 /* Structure for an expanded Twofish key.  s contains the key-dependent
   9  * S-boxes composed with the MDS matrix; w contains the eight "whitening"
  10  * subkeys, K[0] through K[7].  k holds the remaining, "round" subkeys.  Note
  11  * that k[i] corresponds to what the Twofish paper calls K[i+8]. */
  12 typedef struct {
  13    u_int32_t s[4][256], w[8], k[32];
  14 } TWOFISH_context;
  15
  16 typedef TWOFISH_context twofish_context;
  17 int twofish_set_key(twofish_context *tf_ctx, const u_int8_t * in_key, int key_len);
  18 int twofish_encrypt(twofish_context *tf_ctx, const u_int8_t * in, u_int8_t * out);
  19 int twofish_decrypt(twofish_context * tf_ctx, const u_int8_t * in, u_int8_t * out);
  20 #endif /* TWOFISH_H */