Exemple #1
0
        internal IdentityFile(String identity, SshClient jsch)
        {
            this.identity = identity;
            this.jsch     = jsch;
            try {
                Type c = Type.GetType(jsch.getConfig("3des-cbc"));
                cipher = (ICipher)Activator.CreateInstance(c);
                key    = new byte[cipher.getBlockSize()];                // 24
                iv     = new byte[cipher.getIVSize()];                   // 8
                c      = Type.GetType(jsch.getConfig("md5"));
                hash   = (IHASH)(Activator.CreateInstance(c));
                hash.Init();
                FileInfo   file = new FileInfo(identity);
                FileStream fis  = File.OpenRead(identity);
                byte[]     buf  = new byte[(int)(file.Length)];
                int        len  = fis.Read(buf, 0, buf.Length);
                fis.Close();

                int i = 0;
                while (i < len)
                {
                    if (buf[i] == 'B' && buf[i + 1] == 'E' && buf[i + 2] == 'G' && buf[i + 3] == 'I')
                    {
                        i += 6;
                        if (buf[i] == 'D' && buf[i + 1] == 'S' && buf[i + 2] == 'A')
                        {
                            type = DSS;
                        }
                        else if (buf[i] == 'R' && buf[i + 1] == 'S' && buf[i + 2] == 'A')
                        {
                            type = RSA;
                        }
                        else if (buf[i] == 'S' && buf[i + 1] == 'S' && buf[i + 2] == 'H')                           // FSecure
                        {
                            type    = UNKNOWN;
                            keytype = FSECURE;
                        }
                        else
                        {
                            //System.out.println("invalid format: "+identity);
                            throw new SshClientException("invaid privatekey: " + identity);
                        }
                        i += 3;
                        continue;
                    }
                    if (buf[i] == 'C' && buf[i + 1] == 'B' && buf[i + 2] == 'C' && buf[i + 3] == ',')
                    {
                        i += 4;
                        for (int ii = 0; ii < iv.Length; ii++)
                        {
                            iv[ii] = (byte)(((a2b(buf[i++]) << 4) & 0xf0) +
                                            (a2b(buf[i++]) & 0xf));
                        }
                        continue;
                    }
                    if (buf[i] == 0x0d &&
                        i + 1 < buf.Length && buf[i + 1] == 0x0a)
                    {
                        i++;
                        continue;
                    }
                    if (buf[i] == 0x0a && i + 1 < buf.Length)
                    {
                        if (buf[i + 1] == 0x0a)
                        {
                            i += 2;
                            break;
                        }
                        if (buf[i + 1] == 0x0d &&
                            i + 2 < buf.Length && buf[i + 2] == 0x0a)
                        {
                            i += 3;
                            break;
                        }
                        bool inheader = false;
                        for (int j = i + 1; j < buf.Length; j++)
                        {
                            if (buf[j] == 0x0a)
                            {
                                break;
                            }
                            //if(buf[j]==0x0d) break;
                            if (buf[j] == ':')
                            {
                                inheader = true;
                                break;
                            }
                        }
                        if (!inheader)
                        {
                            i++;
                            encrypted = false;                                // no passphrase
                            break;
                        }
                    }
                    i++;
                }

                if (type == ERROR)
                {
                    throw new SshClientException("invaid privatekey: " + identity);
                }

                int start = i;
                while (i < len)
                {
                    if (buf[i] == 0x0a)
                    {
                        bool xd = (buf[i - 1] == 0x0d);
                        Array.Copy(buf, i + 1,
                                   buf,
                                   i - (xd ? 1 : 0),
                                   len - i - 1 - (xd ? 1 : 0)
                                   );
                        if (xd)
                        {
                            len--;
                        }
                        len--;
                        continue;
                    }
                    if (buf[i] == '-')
                    {
                        break;
                    }
                    i++;
                }
                encoded_data = StringAux.fromBase64(buf, start, i - start);

                if (encoded_data.Length > 4 &&                            // FSecure
                    encoded_data[0] == (byte)0x3f &&
                    encoded_data[1] == (byte)0x6f &&
                    encoded_data[2] == (byte)0xf9 &&
                    encoded_data[3] == (byte)0xeb)
                {
                    Buffer _buf = new Buffer(encoded_data);
                    _buf.getInt();                      // 0x3f6ff9be
                    _buf.getInt();
                    byte[] _type = _buf.getString();
                    //System.out.println("type: "+new String(_type));
                    byte[] _cipher  = _buf.getString();
                    String s_cipher = System.Text.Encoding.Default.GetString(_cipher);
                    //System.out.println("cipher: "+cipher);
                    if (s_cipher.Equals("3des-cbc"))
                    {
                        _buf.getInt();
                        byte[] foo = new byte[encoded_data.Length - _buf.getOffSet()];
                        _buf.getByte(foo);
                        encoded_data = foo;
                        encrypted    = true;
                        throw new SshClientException("unknown privatekey format: " + identity);
                    }
                    else if (s_cipher.Equals("none"))
                    {
                        _buf.getInt();
                        //_buf.getInt();

                        encrypted = false;

                        byte[] foo = new byte[encoded_data.Length - _buf.getOffSet()];
                        _buf.getByte(foo);
                        encoded_data = foo;
                    }
                }

                try {
                    file = new FileInfo(identity + ".pub");
                    fis  = File.OpenRead(identity + ".pub");
                    buf  = new byte[(int)(file.Length)];
                    len  = fis.Read(buf, 0, buf.Length);
                    fis.Close();
                }
                catch {
                    return;
                }

                if (buf.Length > 4 &&                             // FSecure's public key
                    buf[0] == '-' && buf[1] == '-' && buf[2] == '-' && buf[3] == '-')
                {
                    i = 0;
                    do
                    {
                        i++;
                    } while (buf.Length > i && buf[i] != 0x0a);
                    if (buf.Length <= i)
                    {
                        return;
                    }

                    while (true)
                    {
                        if (buf[i] == 0x0a)
                        {
                            bool inheader = false;
                            for (int j = i + 1; j < buf.Length; j++)
                            {
                                if (buf[j] == 0x0a)
                                {
                                    break;
                                }
                                if (buf[j] == ':')
                                {
                                    inheader = true;
                                    break;
                                }
                            }
                            if (!inheader)
                            {
                                i++;
                                break;
                            }
                        }
                        i++;
                    }
                    if (buf.Length <= i)
                    {
                        return;
                    }

                    start = i;
                    while (i < len)
                    {
                        if (buf[i] == 0x0a)
                        {
                            Array.Copy(buf, i + 1, buf, i, len - i - 1);
                            len--;
                            continue;
                        }
                        if (buf[i] == '-')
                        {
                            break;
                        }
                        i++;
                    }
                    publickeyblob = StringAux.fromBase64(buf, start, i - start);

                    if (type == UNKNOWN)
                    {
                        if (publickeyblob[8] == 'd')
                        {
                            type = DSS;
                        }
                        else if (publickeyblob[8] == 'r')
                        {
                            type = RSA;
                        }
                    }
                }
                else
                {
                    if (buf[0] != 's' || buf[1] != 's' || buf[2] != 'h' || buf[3] != '-')
                    {
                        return;
                    }
                    i = 0;
                    while (i < len)
                    {
                        if (buf[i] == ' ')
                        {
                            break;
                        }
                        i++;
                    }
                    i++;
                    if (i >= len)
                    {
                        return;
                    }
                    start = i;
                    while (i < len)
                    {
                        if (buf[i] == ' ')
                        {
                            break;
                        }
                        i++;
                    }
                    publickeyblob = StringAux.fromBase64(buf, start, i - start);
                }
            }
            catch (Exception e) {
                Console.WriteLine("Identity: " + e);
                if (e is SshClientException)
                {
                    throw (SshClientException)e;
                }
                throw new SshClientException(e.ToString());
            }
        }
Exemple #2
0
        public static AKeyPair load(SshClient jsch, String prvkey, String pubkey)
        {
            byte[] iv        = new byte[8];            // 8
            bool   encrypted = true;

            byte[] data = null;

            byte[] publickeyblob = null;

            int type   = ERROR;
            int vendor = VENDOR_OPENSSH;

            try {
                //File file=new File(prvkey);
                FileStream fis = File.OpenRead(prvkey);
                byte[]     buf = new byte[(int)(fis.Length)];
                int        len = fis.Read(buf, 0, buf.Length);
                fis.Close();

                int i = 0;

                while (i < len)
                {
                    if (buf[i] == 'B' && buf[i + 1] == 'E' && buf[i + 2] == 'G' && buf[i + 3] == 'I')
                    {
                        i += 6;
                        if (buf[i] == 'D' && buf[i + 1] == 'S' && buf[i + 2] == 'A')
                        {
                            type = DSA;
                        }
                        else if (buf[i] == 'R' && buf[i + 1] == 'S' && buf[i + 2] == 'A')
                        {
                            type = RSA;
                        }
                        else if (buf[i] == 'S' && buf[i + 1] == 'S' && buf[i + 2] == 'H')                           // FSecure
                        {
                            type   = UNKNOWN;
                            vendor = VENDOR_FSECURE;
                        }
                        else
                        {
                            //System.outs.println("invalid format: "+identity);
                            throw new SshClientException("invaid privatekey: " + prvkey);
                        }
                        i += 3;
                        continue;
                    }
                    if (buf[i] == 'C' && buf[i + 1] == 'B' && buf[i + 2] == 'C' && buf[i + 3] == ',')
                    {
                        i += 4;
                        for (int ii = 0; ii < iv.Length; ii++)
                        {
                            iv[ii] = (byte)(((a2b(buf[i++]) << 4) & 0xf0) + (a2b(buf[i++]) & 0xf));
                        }
                        continue;
                    }
                    if (buf[i] == 0x0d &&
                        i + 1 < buf.Length && buf[i + 1] == 0x0a)
                    {
                        i++;
                        continue;
                    }
                    if (buf[i] == 0x0a && i + 1 < buf.Length)
                    {
                        if (buf[i + 1] == 0x0a)
                        {
                            i += 2;
                            break;
                        }
                        if (buf[i + 1] == 0x0d &&
                            i + 2 < buf.Length && buf[i + 2] == 0x0a)
                        {
                            i += 3;
                            break;
                        }
                        bool inheader = false;
                        for (int j = i + 1; j < buf.Length; j++)
                        {
                            if (buf[j] == 0x0a)
                            {
                                break;
                            }
                            //if(buf[j]==0x0d) break;
                            if (buf[j] == ':')
                            {
                                inheader = true;
                                break;
                            }
                        }
                        if (!inheader)
                        {
                            i++;
                            encrypted = false;                                // no passphrase
                            break;
                        }
                    }
                    i++;
                }

                if (type == ERROR)
                {
                    throw new SshClientException("invaid privatekey: " + prvkey);
                }

                int start = i;
                while (i < len)
                {
                    if (buf[i] == 0x0a)
                    {
                        bool xd = (buf[i - 1] == 0x0d);
                        Array.Copy(buf, i + 1,
                                   buf,
                                   i - (xd ? 1 : 0),
                                   len - i - 1 - (xd ? 1 : 0)
                                   );
                        if (xd)
                        {
                            len--;
                        }
                        len--;
                        continue;
                    }
                    if (buf[i] == '-')
                    {
                        break;
                    }
                    i++;
                }
                data = StringAux.fromBase64(buf, start, i - start);

                if (data.Length > 4 &&                            // FSecure
                    data[0] == (byte)0x3f &&
                    data[1] == (byte)0x6f &&
                    data[2] == (byte)0xf9 &&
                    data[3] == (byte)0xeb)
                {
                    LibSterileSSH.SecureShell.Buffer _buf = new LibSterileSSH.SecureShell.Buffer(data);
                    _buf.getInt();                      // 0x3f6ff9be
                    _buf.getInt();
                    byte[] _type = _buf.getString();
                    //System.outs.println("type: "+new String(_type));
                    byte[] _cipher = _buf.getString();
                    String cipher  = StringAux.getString(_cipher);
                    //System.outs.println("cipher: "+cipher);
                    if (cipher.Equals("3des-cbc"))
                    {
                        _buf.getInt();
                        byte[] foo = new byte[data.Length - _buf.getOffSet()];
                        _buf.getByte(foo);
                        data      = foo;
                        encrypted = true;
                        throw new SshClientException("unknown privatekey format: " + prvkey);
                    }
                    else if (cipher.Equals("none"))
                    {
                        _buf.getInt();
                        _buf.getInt();

                        encrypted = false;

                        byte[] foo = new byte[data.Length - _buf.getOffSet()];
                        _buf.getByte(foo);
                        data = foo;
                    }
                }

                if (pubkey != null)
                {
                    try {
                        //file=new File(pubkey);
                        fis = File.OpenRead(pubkey);
                        buf = new byte[(int)(fis.Length)];
                        len = fis.Read(buf, 0, buf.Length);
                        fis.Close();

                        if (buf.Length > 4 &&                                     // FSecure's public key
                            buf[0] == '-' && buf[1] == '-' && buf[2] == '-' && buf[3] == '-')
                        {
                            bool valid = true;
                            i = 0;
                            do
                            {
                                i++;
                            } while (buf.Length > i && buf[i] != 0x0a);
                            if (buf.Length <= i)
                            {
                                valid = false;
                            }

                            while (valid)
                            {
                                if (buf[i] == 0x0a)
                                {
                                    bool inheader = false;
                                    for (int j = i + 1; j < buf.Length; j++)
                                    {
                                        if (buf[j] == 0x0a)
                                        {
                                            break;
                                        }
                                        if (buf[j] == ':')
                                        {
                                            inheader = true;
                                            break;
                                        }
                                    }
                                    if (!inheader)
                                    {
                                        i++;
                                        break;
                                    }
                                }
                                i++;
                            }
                            if (buf.Length <= i)
                            {
                                valid = false;
                            }

                            start = i;
                            while (valid && i < len)
                            {
                                if (buf[i] == 0x0a)
                                {
                                    Array.Copy(buf, i + 1, buf, i, len - i - 1);
                                    len--;
                                    continue;
                                }
                                if (buf[i] == '-')
                                {
                                    break;
                                }
                                i++;
                            }
                            if (valid)
                            {
                                publickeyblob = StringAux.fromBase64(buf, start, i - start);
                                if (type == UNKNOWN)
                                {
                                    if (publickeyblob[8] == 'd')
                                    {
                                        type = DSA;
                                    }
                                    else if (publickeyblob[8] == 'r')
                                    {
                                        type = RSA;
                                    }
                                }
                            }
                        }
                        else
                        {
                            if (buf[0] == 's' && buf[1] == 's' && buf[2] == 'h' && buf[3] == '-')
                            {
                                i = 0;
                                while (i < len)
                                {
                                    if (buf[i] == ' ')
                                    {
                                        break;
                                    }
                                    i++;
                                }
                                i++;
                                if (i < len)
                                {
                                    start = i;
                                    while (i < len)
                                    {
                                        if (buf[i] == ' ')
                                        {
                                            break;
                                        }
                                        i++;
                                    }
                                    publickeyblob = StringAux.fromBase64(buf, start, i - start);
                                }
                            }
                        }
                    }
                    catch                    //(Exception ee)
                    {
                    }
                }
            }
            catch (Exception e) {
                if (e is SshClientException)
                {
                    throw (SshClientException)e;
                }
                throw new SshClientException(e.ToString());
            }

            AKeyPair kpair = null;

            if (type == DSA)
            {
                kpair = new KeyPairDSA(jsch);
            }
            else if (type == RSA)
            {
                kpair = new KeyPairRSA(jsch);
            }

            if (kpair != null)
            {
                kpair.encrypted     = encrypted;
                kpair.publickeyblob = publickeyblob;
                kpair.vendor        = vendor;

                if (encrypted)
                {
                    kpair.iv   = iv;
                    kpair.data = data;
                }
                else
                {
                    if (kpair.parse(data))
                    {
                        return(kpair);
                    }
                    else
                    {
                        throw new SshClientException("invaid privatekey: " + prvkey);
                    }
                }
            }

            return(kpair);
        }
Exemple #3
0
        internal void setKnownHosts(StreamReader foo)
        {
            pool.Clear();
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            byte i;
            int  j;
            bool error = false;

            try {
                StreamReader fis = foo;
                String       host;
                String       key = null;
                int          type;
                byte[]       buf  = new byte[1024];
                int          bufl = 0;
loop:
                while (true)
                {
                    bufl = 0;
                    while (true)
                    {
                        j = fis.Read();
                        if (j == -1)
                        {
                            goto break_loop;
                        }
                        if (j == 0x0d)
                        {
                            continue;
                        }
                        if (j == 0x0a)
                        {
                            break;
                        }
                        buf[bufl++] = (byte)j;
                    }

                    j = 0;
                    while (j < bufl)
                    {
                        i = buf[j];
                        if (i == ' ' || i == '\t')
                        {
                            j++;
                            continue;
                        }
                        if (i == '#')
                        {
                            addInvalidLine(System.Text.Encoding.Default.GetString(buf, 0, bufl));
                            goto loop;
                        }
                        break;
                    }
                    if (j >= bufl)
                    {
                        addInvalidLine(System.Text.Encoding.Default.GetString(buf, 0, bufl));
                        goto loop;
                    }

                    sb.Length = 0;
                    while (j < bufl)
                    {
                        i = buf[j++];
                        if (i == 0x20 || i == '\t')
                        {
                            break;
                        }
                        sb.Append((char)i);
                    }
                    host = sb.ToString();
                    if (j >= bufl || host.Length == 0)
                    {
                        addInvalidLine(System.Text.Encoding.Default.GetString(buf, 0, bufl));
                        goto loop;
                    }

                    sb.Length = 0;
                    type      = -1;
                    while (j < bufl)
                    {
                        i = buf[j++];
                        if (i == 0x20 || i == '\t')
                        {
                            break;
                        }
                        sb.Append((char)i);
                    }
                    if (sb.ToString().Equals("ssh-dss"))
                    {
                        type = HostKey.SSHDSS;
                    }
                    else if (sb.ToString().Equals("ssh-rsa"))
                    {
                        type = HostKey.SSHRSA;
                    }
                    else
                    {
                        j = bufl;
                    }
                    if (j >= bufl)
                    {
                        addInvalidLine(StringAux.getString(buf, 0, bufl));
                        goto loop;
                    }

                    sb.Length = 0;
                    while (j < bufl)
                    {
                        i = buf[j++];
                        if (i == 0x0d)
                        {
                            continue;
                        }
                        if (i == 0x0a)
                        {
                            break;
                        }
                        sb.Append((char)i);
                    }
                    key = sb.ToString();
                    if (key.Length == 0)
                    {
                        addInvalidLine(StringAux.getString(buf, 0, bufl));
                        goto loop;
                    }

                    //System.out.println(host);
                    //System.out.println("|"+key+"|");

                    HostKey hk = new HostKey(host, type,
                                             StringAux.fromBase64(StringAux.getBytes(key), 0,
                                                                  key.Length));
                    pool.Add(hk);
                }

break_loop:

                fis.Close();
                if (error)
                {
                    throw new SshClientException("KnownHosts: invalid format");
                }
            }
            catch (Exception e) {
                if (e is SshClientException)
                {
                    throw (SshClientException)e;
                }
                throw new SshClientException(e.ToString());
            }
        }