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BLOWFISH(2)							   BLOWFISH(2)

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 vari‐
       able length keys from 32 to 448 bits and has a block size of  64	 bits.
       Both CBC and ECB modes are supported.

       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 multiple of eight bytes as padding is currently unsupported.

SOURCE
       /sys/src/libsec

SEE ALSO
       mp(2),  aes(2), des(2), dsa(2), elgamal(2), rc4(2), rsa(2), sechash(2),
       prime(2), rand(2)

								   BLOWFISH(2)

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