BLOWFISH(3)                                           BLOWFISH(3)

     NAME
          setupBFstate, bfCBCencrypt, bfCBCdecrypt, bfECBencrypt,
          bfECBdecrypt  - blowfish encryption

     SYNOPSIS
          #include <u.h>
          #include <libc.h>
          #include <mp.h>
          #include <libsec.h>

          void setupBFstate(BFstate *s, uchar key[], int keybytes,
                          uchar *ivec)

          void bfCBCencrypt(uchar *data, int len, BFstate *s)

          void bfCBCdecrypt(uchar *data, int len, BFstate *s)

          void bfECBencrypt(uchar *data, int len, BFstate *s)

          void bfECBdecrypt(uchar *data, int len, BFstate *s)

     DESCRIPTION
          Blowfish is Bruce Schneier's symmetric block cipher.  It
          supports variable length keys from 32 to 448 bits and has a
          block size of 64 bits.  Both CBC and ECB modes are sup-
          ported.

          setupBFstate takes a BFstate structure, a key of at most 56
          bytes, the length of the key in bytes, and an initialization
          vector of 8 bytes (set to all zeroes if argument is nil).
          The encryption and decryption functions take a BFstate
          structure, a data buffer, and a length, which must be a mul-
          tiple of eight bytes as padding is currently unsupported.

     SOURCE
          /src/libsec

     SEE ALSO
          mp(3), aes(3), des(3), dsa(3), elgamal(3), rc4(3), rsa(3),
          sechash(3), prime(3), rand(3)