75 lines · 1.8 KB · C
RawDownload
/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <mp.h>#include <fcall.h>#include <thread.h>#include <9p.h>#include <libsec.h>#include "netssh.h" struct CipherState {	BFstate	state;}; static CipherState*initblowfish(Conn *c, int dir){	int i;	CipherState *cs; 	if (debug > 1) {		fprint(2, "initblowfish dir:%d\ns2cek: ", dir);		for(i = 0; i < 16; ++i)			fprint(2, "%02x", c->s2cek[i]);		fprint(2, "\nc2sek: ");		for(i = 0; i < 16; ++i)			fprint(2, "%02x", c->c2sek[i]);		fprint(2, "\ns2civ: ");		for(i = 0; i < 8; ++i)			fprint(2, "%02x", c->s2civ[i]);		fprint(2, "\nc2siv: ");		for(i = 0; i < 8; ++i)			fprint(2, "%02x", c->c2siv[i]);		fprint(2, "\n");	}	cs = emalloc9p(sizeof(CipherState));	memset(cs, '\0', sizeof *cs);	fprint(2, "cs: %p\n", cs);	if(dir)		setupBFstate(&cs->state, c->s2cek, 16, c->s2civ);	else		setupBFstate(&cs->state, c->c2sek, 16, c->c2siv);	return cs;} static voidencryptblowfish(CipherState *cs, uchar *buf, int nbuf){	bfCBCencrypt(buf, nbuf, &cs->state);} static voiddecryptblowfish(CipherState *cs, uchar *buf, int nbuf){fprint(2, "cs: %p, nb:%d\n", cs, nbuf);fprint(2, "before decrypt: %02ux %02ux %02ux %02ux\n", buf[0], buf[1], buf[2], buf[3]);	bfCBCdecrypt(buf, nbuf, &cs->state);fprint(2, "after decrypt: %02ux %02ux %02ux %02ux\n", buf[0], buf[1], buf[2], buf[3]);} Cipher cipherblowfish = {	"blowfish-cbc",	8,	initblowfish,	encryptblowfish,	decryptblowfish,};