/// <exception cref="System.Exception"></exception>
private void UpdateKeys(KeyExchange kex)
{
byte[] K = kex.GetK();
byte[] H = kex.GetH();
HASH hash = kex.GetHash();
// String[] guess=kex.guess;
if (session_id == null)
{
session_id = new byte[H.Length];
System.Array.Copy(H, 0, session_id, 0, H.Length);
}
buf.Reset();
buf.PutMPInt(K);
buf.PutByte(H);
buf.PutByte(unchecked((byte)unchecked((int)(0x41))));
buf.PutByte(session_id);
hash.Update(buf.buffer, 0, buf.index);
IVc2s = hash.Digest();
int j = buf.index - session_id.Length - 1;
buf.buffer[j]++;
hash.Update(buf.buffer, 0, buf.index);
IVs2c = hash.Digest();
buf.buffer[j]++;
hash.Update(buf.buffer, 0, buf.index);
Ec2s = hash.Digest();
buf.buffer[j]++;
hash.Update(buf.buffer, 0, buf.index);
Es2c = hash.Digest();
buf.buffer[j]++;
hash.Update(buf.buffer, 0, buf.index);
MACc2s = hash.Digest();
buf.buffer[j]++;
hash.Update(buf.buffer, 0, buf.index);
MACs2c = hash.Digest();
try
{
Type c;
string method;
method = guess[KeyExchange.PROPOSAL_ENC_ALGS_STOC];
c = Sharpen.Runtime.GetType(GetConfig(method));
s2ccipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
while (s2ccipher.GetBlockSize() > Es2c.Length)
{
buf.Reset();
buf.PutMPInt(K);
buf.PutByte(H);
buf.PutByte(Es2c);
hash.Update(buf.buffer, 0, buf.index);
byte[] foo = hash.Digest();
byte[] bar = new byte[Es2c.Length + foo.Length];
System.Array.Copy(Es2c, 0, bar, 0, Es2c.Length);
System.Array.Copy(foo, 0, bar, Es2c.Length, foo.Length);
Es2c = bar;
}
s2ccipher.Init(NSch.Cipher.DECRYPT_MODE, Es2c, IVs2c);
s2ccipher_size = s2ccipher.GetIVSize();
method = guess[KeyExchange.PROPOSAL_MAC_ALGS_STOC];
c = Sharpen.Runtime.GetType(GetConfig(method));
s2cmac = (MAC)(System.Activator.CreateInstance(c));
s2cmac.Init(MACs2c);
//mac_buf=new byte[s2cmac.getBlockSize()];
s2cmac_result1 = new byte[s2cmac.GetBlockSize()];
s2cmac_result2 = new byte[s2cmac.GetBlockSize()];
method = guess[KeyExchange.PROPOSAL_ENC_ALGS_CTOS];
c = Sharpen.Runtime.GetType(GetConfig(method));
c2scipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
while (c2scipher.GetBlockSize() > Ec2s.Length)
{
buf.Reset();
buf.PutMPInt(K);
buf.PutByte(H);
buf.PutByte(Ec2s);
hash.Update(buf.buffer, 0, buf.index);
byte[] foo = hash.Digest();
byte[] bar = new byte[Ec2s.Length + foo.Length];
System.Array.Copy(Ec2s, 0, bar, 0, Ec2s.Length);
System.Array.Copy(foo, 0, bar, Ec2s.Length, foo.Length);
Ec2s = bar;
}
c2scipher.Init(NSch.Cipher.ENCRYPT_MODE, Ec2s, IVc2s);
c2scipher_size = c2scipher.GetIVSize();
method = guess[KeyExchange.PROPOSAL_MAC_ALGS_CTOS];
c = Sharpen.Runtime.GetType(GetConfig(method));
c2smac = (MAC)(System.Activator.CreateInstance(c));
c2smac.Init(MACc2s);
method = guess[KeyExchange.PROPOSAL_COMP_ALGS_CTOS];
InitDeflater(method);
method = guess[KeyExchange.PROPOSAL_COMP_ALGS_STOC];
InitInflater(method);
}
catch (Exception e)
{
if (e is JSchException)
{
throw;
}
throw new JSchException(e.ToString(), e);
}
}
/// <exception cref="NSch.JSchException"></exception>
private IdentityFile(string name, byte[] prvkey, byte[] pubkey, JSch jsch)
{
this.identity = name;
this.jsch = jsch;
// prvkey from "ssh-add" command on the remote.
if (pubkey == null && prvkey != null && (prvkey.Length > 11 && prvkey[0] == 0 &&
prvkey[1] == 0 && prvkey[2] == 0 && prvkey[3] == 7))
{
Buffer buf = new Buffer(prvkey);
string _type = Sharpen.Runtime.GetStringForBytes(buf.GetString());
// ssh-rsa
if (_type.Equals("ssh-rsa"))
{
type = RSA;
n_array = buf.GetString();
e_array = buf.GetString();
d_array = buf.GetString();
buf.GetString();
buf.GetString();
buf.GetString();
this.identity += Sharpen.Runtime.GetStringForBytes(buf.GetString());
}
else
{
if (_type.Equals("ssh-dss"))
{
type = DSS;
P_array = buf.GetString();
Q_array = buf.GetString();
G_array = buf.GetString();
pub_array = buf.GetString();
prv_array = buf.GetString();
this.identity += Sharpen.Runtime.GetStringForBytes(buf.GetString());
}
else
{
throw new JSchException("privatekey: invalid key " + Sharpen.Runtime.GetStringForBytes
(prvkey, 4, 7));
}
}
encoded_data = prvkey;
encrypted = false;
keytype = OPENSSH;
return;
}
try
{
Type c;
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("3des-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
// 24
iv = new byte[cipher.GetIVSize()];
// 8
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("md5"));
hash = (HASH)(System.Activator.CreateInstance(c));
hash.Init();
byte[] buf = prvkey;
int len = buf.Length;
int i = 0;
while (i < len)
{
if (buf[i] == '-' && i + 4 < len && buf[i + 1] == '-' && buf[i + 2] == '-' && buf
[i + 3] == '-' && buf[i + 4] == '-')
{
break;
}
i++;
}
while (i < len)
{
if (buf[i] == 'B' && i + 3 < len && 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.err.println("invalid format: "+identity);
throw new JSchException("invalid privatekey: " + identity);
}
}
}
i += 3;
continue;
}
if (buf[i] == 'A' && i + 7 < len && buf[i + 1] == 'E' && buf[i + 2] == 'S' && buf
[i + 3] == '-' && buf[i + 4] == '2' && buf[i + 5] == '5' && buf[i + 6] == '6' &&
buf[i + 7] == '-')
{
i += 8;
if (Session.CheckCipher((string)JSch.GetConfig("aes256-cbc")))
{
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("aes256-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
iv = new byte[cipher.GetIVSize()];
}
else
{
throw new JSchException("privatekey: aes256-cbc is not available " + identity);
}
continue;
}
if (buf[i] == 'A' && i + 7 < len && buf[i + 1] == 'E' && buf[i + 2] == 'S' && buf
[i + 3] == '-' && buf[i + 4] == '1' && buf[i + 5] == '9' && buf[i + 6] == '2' &&
buf[i + 7] == '-')
{
i += 8;
if (Session.CheckCipher((string)JSch.GetConfig("aes192-cbc")))
{
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("aes192-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
iv = new byte[cipher.GetIVSize()];
}
else
{
throw new JSchException("privatekey: aes192-cbc is not available " + identity);
}
continue;
}
if (buf[i] == 'A' && i + 7 < len && buf[i + 1] == 'E' && buf[i + 2] == 'S' && buf
[i + 3] == '-' && buf[i + 4] == '1' && buf[i + 5] == '2' && buf[i + 6] == '8' &&
buf[i + 7] == '-')
{
i += 8;
if (Session.CheckCipher((string)JSch.GetConfig("aes128-cbc")))
{
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("aes128-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
iv = new byte[cipher.GetIVSize()];
}
else
{
throw new JSchException("privatekey: aes128-cbc is not available " + identity);
}
continue;
}
if (buf[i] == 'C' && i + 3 < len && buf[i + 1] == 'B' && buf[i + 2] == 'C' && buf
[i + 3] == ',')
{
i += 4;
for (int ii = 0; ii < iv.Length; ii++)
{
iv[ii] = unchecked ((byte)(((A2b(buf[i++]) << 4) & unchecked ((int)(0xf0))) + (A2b(
buf[i++]) & unchecked ((int)(0xf)))));
}
continue;
}
if (buf[i] == unchecked ((int)(0x0d)) && i + 1 < len && buf[i + 1] == unchecked ((int
)(0x0a)))
{
i++;
continue;
}
if (buf[i] == unchecked ((int)(0x0a)) && i + 1 < len)
{
if (buf[i + 1] == unchecked ((int)(0x0a)))
{
i += 2;
break;
}
if (buf[i + 1] == unchecked ((int)(0x0d)) && i + 2 < len && buf[i + 2] == unchecked (
(int)(0x0a)))
{
i += 3;
break;
}
bool inheader = false;
for (int j = i + 1; j < len; j++)
{
if (buf[j] == unchecked ((int)(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 JSchException("invalid privatekey: " + identity);
}
int start = i;
while (i < len)
{
if (buf[i] == unchecked ((int)(0x0a)))
{
bool xd = (buf[i - 1] == unchecked ((int)(0x0d)));
System.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 = Util.FromBase64(buf, start, i - start);
if (encoded_data.Length > 4 && encoded_data[0] == unchecked ((byte)unchecked ((int)
(0x3f))) && encoded_data[1] == unchecked ((byte)unchecked ((int)(0x6f))) && encoded_data
[2] == unchecked ((byte)unchecked ((int)(0xf9))) && encoded_data[3] == unchecked ((
byte)unchecked ((int)(0xeb))))
{
// FSecure
Buffer _buf = new Buffer(encoded_data);
_buf.GetInt();
// 0x3f6ff9be
_buf.GetInt();
byte[] _type = _buf.GetString();
//System.err.println("type: "+new String(_type));
byte[] _cipher = _buf.GetString();
string cipherStr = Util.Byte2str(_cipher);
//System.err.println("cipher: "+cipher);
if (cipherStr.Equals("3des-cbc"))
{
_buf.GetInt();
byte[] foo = new byte[encoded_data.Length - _buf.GetOffSet()];
_buf.GetByte(foo);
encoded_data = foo;
encrypted = true;
throw new JSchException("unknown privatekey format: " + identity);
}
else
{
if (cipherStr.Equals("none"))
{
_buf.GetInt();
//_buf.getInt();
encrypted = false;
byte[] foo = new byte[encoded_data.Length - _buf.GetOffSet()];
_buf.GetByte(foo);
encoded_data = foo;
}
}
}
if (pubkey == null)
{
return;
}
buf = pubkey;
len = buf.Length;
if (buf.Length > 4 && buf[0] == '-' && buf[1] == '-' && buf[2] == '-' && buf[3] ==
'-')
{
// FSecure's public key
i = 0;
do
{
i++;
}while (len > i && buf[i] != unchecked ((int)(0x0a)));
if (len <= i)
{
return;
}
while (i < len)
{
if (buf[i] == unchecked ((int)(0x0a)))
{
bool inheader = false;
for (int j = i + 1; j < len; j++)
{
if (buf[j] == unchecked ((int)(0x0a)))
{
break;
}
if (buf[j] == ':')
{
inheader = true;
break;
}
}
if (!inheader)
{
i++;
break;
}
}
i++;
}
if (len <= i)
{
return;
}
start = i;
while (i < len)
{
if (buf[i] == unchecked ((int)(0x0a)))
{
System.Array.Copy(buf, i + 1, buf, i, len - i - 1);
len--;
continue;
}
if (buf[i] == '-')
{
break;
}
i++;
}
publickeyblob = Util.FromBase64(buf, start, i - start);
if (type == UNKNOWN && publickeyblob.Length > 8)
{
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] == ' ' || buf[i] == '\n')
{
break;
}
i++;
}
publickeyblob = Util.FromBase64(buf, start, i - start);
if (publickeyblob.Length < 4 + 7)
{
// It must start with "ssh-XXX".
if (JSch.GetLogger().IsEnabled(Logger.WARN))
{
JSch.GetLogger().Log(Logger.WARN, "failed to parse the public key");
}
publickeyblob = null;
}
}
}
catch (Exception e)
{
//System.err.println("IdentityFile: "+e);
if (e is JSchException)
{
throw (JSchException)e;
}
if (e is Exception)
{
throw new JSchException(e.ToString(), (Exception)e);
}
throw new JSchException(e.ToString());
}
}
internal virtual byte[] GenKey(byte[] passphrase, byte[] iv)
{
lock (this)
{
if (cipher == null)
{
cipher = GenCipher();
}
if (hash == null)
{
hash = GenHash();
}
byte[] key = new byte[cipher.GetBlockSize()];
int hsize = hash.GetBlockSize();
byte[] hn = new byte[key.Length / hsize * hsize + (key.Length % hsize == 0 ? 0 :
hsize)];
try
{
byte[] tmp = null;
if (vendor == VENDOR_OPENSSH)
{
for (int index = 0; index + hsize <= hn.Length;)
{
if (tmp != null)
{
hash.Update(tmp, 0, tmp.Length);
}
hash.Update(passphrase, 0, passphrase.Length);
hash.Update(iv, 0, iv.Length > 8 ? 8 : iv.Length);
tmp = hash.Digest();
System.Array.Copy(tmp, 0, hn, index, tmp.Length);
index += tmp.Length;
}
System.Array.Copy(hn, 0, key, 0, key.Length);
}
else
{
if (vendor == VENDOR_FSECURE)
{
for (int index = 0; index + hsize <= hn.Length;)
{
if (tmp != null)
{
hash.Update(tmp, 0, tmp.Length);
}
hash.Update(passphrase, 0, passphrase.Length);
tmp = hash.Digest();
System.Array.Copy(tmp, 0, hn, index, tmp.Length);
index += tmp.Length;
}
System.Array.Copy(hn, 0, key, 0, key.Length);
}
}
}
catch (Exception e)
{
System.Console.Error.WriteLine(e);
}
return(key);
}
}
/// <exception cref="NSch.JSchException"></exception>
private IdentityFile(string name, byte[] prvkey, byte[] pubkey, JSch jsch)
{
this.identity = name;
this.jsch = jsch;
try
{
Type c;
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("3des-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
// 24
iv = new byte[cipher.GetIVSize()];
// 8
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("md5"));
hash = (HASH)(System.Activator.CreateInstance(c));
hash.Init();
byte[] buf = prvkey;
int len = buf.Length;
int i = 0;
while (i < len)
{
if (buf[i] == '-' && i + 4 < len && buf[i + 1] == '-' && buf[i + 2] == '-' && buf
[i + 3] == '-' && buf[i + 4] == '-')
{
break;
}
i++;
}
while (i < len)
{
if (buf[i] == 'B' && i + 3 < len && 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.err.println("invalid format: "+identity);
throw new JSchException("invalid privatekey: " + identity);
}
}
}
i += 3;
continue;
}
if (buf[i] == 'A' && i + 7 < len && buf[i + 1] == 'E' && buf[i + 2] == 'S' && buf
[i + 3] == '-' && buf[i + 4] == '2' && buf[i + 5] == '5' && buf[i + 6] == '6' &&
buf[i + 7] == '-')
{
i += 8;
if (Session.CheckCipher((string)JSch.GetConfig("aes256-cbc")))
{
c = Sharpen.Runtime.GetType((string)JSch.GetConfig("aes256-cbc"));
cipher = (NSch.Cipher)(System.Activator.CreateInstance(c));
key = new byte[cipher.GetBlockSize()];
iv = new byte[cipher.GetIVSize()];
}
else
{
throw new JSchException("privatekey: aes256-cbc is not available " + identity);
}
continue;
}
if (buf[i] == 'C' && i + 3 < len && buf[i + 1] == 'B' && buf[i + 2] == 'C' && buf
[i + 3] == ',')
{
i += 4;
for (int ii = 0; ii < iv.Length; ii++)
{
iv[ii] = unchecked((byte)(((A2b(buf[i++]) << 4) & unchecked((int)(0xf0))) + (A2b(
buf[i++]) & unchecked((int)(0xf)))));
}
continue;
}
if (buf[i] == unchecked((int)(0x0d)) && i + 1 < len && buf[i + 1] == unchecked((int
)(0x0a)))
{
i++;
continue;
}
if (buf[i] == unchecked((int)(0x0a)) && i + 1 < len)
{
if (buf[i + 1] == unchecked((int)(0x0a)))
{
i += 2;
break;
}
if (buf[i + 1] == unchecked((int)(0x0d)) && i + 2 < len && buf[i + 2] == unchecked(
(int)(0x0a)))
{
i += 3;
break;
}
bool inheader = false;
for (int j = i + 1; j < len; j++)
{
if (buf[j] == unchecked((int)(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 JSchException("invalid privatekey: " + identity);
}
int start = i;
while (i < len)
{
if (buf[i] == unchecked((int)(0x0a)))
{
bool xd = (buf[i - 1] == unchecked((int)(0x0d)));
System.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 = Util.FromBase64(buf, start, i - start);
if (encoded_data.Length > 4 && encoded_data[0] == unchecked((byte)unchecked((int)
(0x3f))) && encoded_data[1] == unchecked((byte)unchecked((int)(0x6f))) && encoded_data
[2] == unchecked((byte)unchecked((int)(0xf9))) && encoded_data[3] == unchecked((
byte)unchecked((int)(0xeb))))
{
// FSecure
Buffer _buf = new Buffer(encoded_data);
_buf.GetInt();
// 0x3f6ff9be
_buf.GetInt();
byte[] _type = _buf.GetString();
//System.err.println("type: "+new String(_type));
byte[] _cipher = _buf.GetString();
string cipher2 = Util.Byte2str(_cipher);
//System.err.println("cipher: "+cipher);
if (cipher2.Equals("3des-cbc"))
{
_buf.GetInt();
byte[] foo = new byte[encoded_data.Length - _buf.GetOffSet()];
_buf.GetByte(foo);
encoded_data = foo;
encrypted = true;
throw new JSchException("unknown privatekey format: " + identity);
}
else
{
if (cipher2.Equals("none"))
{
_buf.GetInt();
//_buf.getInt();
encrypted = false;
byte[] foo = new byte[encoded_data.Length - _buf.GetOffSet()];
_buf.GetByte(foo);
encoded_data = foo;
}
}
}
if (pubkey == null)
{
return;
}
buf = pubkey;
len = buf.Length;
if (buf.Length > 4 && buf[0] == '-' && buf[1] == '-' && buf[2] == '-' && buf[3] ==
'-')
{
// FSecure's public key
i = 0;
do
{
i++;
}
while (len > i && buf[i] != unchecked((int)(0x0a)));
if (len <= i)
{
return;
}
while (i < len)
{
if (buf[i] == unchecked((int)(0x0a)))
{
bool inheader = false;
for (int j = i + 1; j < len; j++)
{
if (buf[j] == unchecked((int)(0x0a)))
{
break;
}
if (buf[j] == ':')
{
inheader = true;
break;
}
}
if (!inheader)
{
i++;
break;
}
}
i++;
}
if (len <= i)
{
return;
}
start = i;
while (i < len)
{
if (buf[i] == unchecked((int)(0x0a)))
{
System.Array.Copy(buf, i + 1, buf, i, len - i - 1);
len--;
continue;
}
if (buf[i] == '-')
{
break;
}
i++;
}
publickeyblob = Util.FromBase64(buf, start, i - start);
if (type == UNKNOWN && publickeyblob.Length > 8)
{
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] == ' ' || buf[i] == '\n')
{
break;
}
i++;
}
publickeyblob = Util.FromBase64(buf, start, i - start);
if (publickeyblob.Length < 4 + 7)
{
// It must start with "ssh-XXX".
if (JSch.GetLogger().IsEnabled(Logger.WARN))
{
JSch.GetLogger().Log(Logger.WARN, "failed to parse the public key");
}
publickeyblob = null;
}
}
}
catch (Exception e)
{
//System.err.println("IdentityFile: "+e);
if (e is JSchException)
{
throw (JSchException)e;
}
if (e is Exception)
{
throw new JSchException(e.ToString(), (Exception)e);
}
throw new JSchException(e.ToString());
}
}