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#include <u.h>
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#include <libc.h>
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#include <mp.h>
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#include <fcall.h>
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#include <thread.h>
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#include <9p.h>
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#include <libsec.h>
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#include "netssh.h"
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struct CipherState {
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	DES3state state;
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};
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static CipherState*
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init3des(Conn *c, int dir)
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{
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	CipherState *cs;
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	uchar key[3][8];
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	cs = emalloc9p(sizeof(CipherState));
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	if(dir){
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		memmove(key, c->s2cek, sizeof key);
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		setupDES3state(&cs->state, key, c->s2civ);
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	} else {
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		memmove(key, c->c2sek, sizeof key);
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		setupDES3state(&cs->state, key, c->c2siv);
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	}
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	return cs;
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}
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static void
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encrypt3des(CipherState *cs, uchar *buf, int nbuf)
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{
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	des3CBCencrypt(buf, nbuf, &cs->state);
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}
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static void
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decrypt3des(CipherState *cs, uchar *buf, int nbuf)
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{
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	des3CBCdecrypt(buf, nbuf, &cs->state);
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}
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Cipher cipher3des = {
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	"3des-cbc",
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	8,
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	init3des,
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	encrypt3des,
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	decrypt3des,
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};