word32 pointers to access data stored in word8 arrays:
* align transformation tables on 32-bit boundaries,
* align key schedule on 32-bit boundary,
* align temporaries on 32-bit boundaries,
* align plaintext and ciphertext used in round transformations on 32-bit
boundaries.
- include string.h (instead of sys/systm.h) on userland compilation.
make compilation under src/regress/sys/crypto happier. from minoura
- (blowfish) KNF.