Subversion Repositories planix.SVN

#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 {
        RC4state state;
};

static CipherState*
initrc4(Conn *c, int dir)
{
        CipherState *cs;

        cs = emalloc9p(sizeof(CipherState));
        if(dir)
                setupRC4state(&cs->state, c->s2cek, 16);
        else
                setupRC4state(&cs->state, c->c2sek, 16);
        return cs;
}

static void
encryptrc4(CipherState *cs, uchar *buf, int nbuf)
{
        rc4(&cs->state, buf, nbuf);
}

static void
decryptrc4(CipherState *cs, uchar *buf, int nbuf)
{
        rc4(&cs->state, buf, nbuf);
}

Cipher cipherrc4 = {
        "arcfour",
        8,
        initrc4,
        encryptrc4,
        decryptrc4,
};