ipif/blowfish.h

   1 /**/
   2
   3 #ifndef BLOWFISH__H_INCLUDED
   4 #define BLOWFISH__H_INCLUDED
   5
   6 #define BLOWFISH_BLOCKBYTES 8
   7 #define BLOWFISH_MAXKEYBYTES 56
   8 #define BLOWFISH__N 16
   9 #define BLOWFISH__PSIZE BLOWFISH__N+2
  10
  11 typedef uint32 blowfish__p[BLOWFISH__PSIZE];
  12 typedef uint32 blowfish__s[4][256];
  13
  14 struct blowfish_expandedkey {
  15   blowfish__p p;
  16   blowfish__s s;
  17 };
  18
  19 void blowfish_loadkey(struct blowfish_expandedkey *ek,
  20                       const uint8 *key, int keybytes);
  21 void blowfish_encrypt(const struct blowfish_expandedkey *ek,
  22                       const uint8 plain[BLOWFISH_BLOCKBYTES],
  23                       uint8 cipher[BLOWFISH_BLOCKBYTES]);
  24 void blowfish_decrypt(const struct blowfish_expandedkey *ek,
  25                       const uint8 cipher[BLOWFISH_BLOCKBYTES],
  26                       uint8 plain[BLOWFISH_BLOCKBYTES]);
  27
  28 struct blowfish_cbc_state {
  29   struct blowfish_expandedkey ek;
  30   uint32 chainl, chainr;
  31 };
  32
  33 void blowfish_cbc_setiv(struct blowfish_cbc_state *cs,
  34                         const uint8 iv[BLOWFISH_BLOCKBYTES]);
  35 void blowfish_cbc_encrypt(struct blowfish_cbc_state *cs,
  36                           const uint8 plain[BLOWFISH_BLOCKBYTES],
  37                           uint8 cipher[BLOWFISH_BLOCKBYTES]);
  38 void blowfish_cbc_decrypt(struct blowfish_cbc_state *cs,
  39                           const uint8 cipher[BLOWFISH_BLOCKBYTES],
  40                           uint8 plain[BLOWFISH_BLOCKBYTES]);
  41
  42 #endif