internal override bool IsMatched(string _host)
{
if (!this.hashed)
{
return(base.IsMatched(_host));
}
MAC macsha1 = this._enclosing.GetHMACSHA1();
try
{
lock (macsha1)
{
macsha1.Init(this.salt);
byte[] foo = Util.Str2byte(_host);
macsha1.Update(foo, 0, foo.Length);
byte[] bar = new byte[macsha1.GetBlockSize()];
macsha1.DoFinal(bar, 0);
return(Util.Array_equals(this.hash, bar));
}
}
catch (Exception e)
{
System.Console.Out.WriteLine(e);
}
return(false);
}
internal virtual void Hash()
{
if (this.hashed)
{
return;
}
MAC macsha1 = this._enclosing.GetHMACSHA1();
if (this.salt == null)
{
Random random = Session.random;
lock (random)
{
this.salt = new byte[macsha1.GetBlockSize()];
random.Fill(this.salt, 0, this.salt.Length);
}
}
try
{
lock (macsha1)
{
macsha1.Init(this.salt);
byte[] foo = Util.Str2byte(this.host);
macsha1.Update(foo, 0, foo.Length);
this.hash = new byte[macsha1.GetBlockSize()];
macsha1.DoFinal(this.hash, 0);
}
}
catch (Exception)
{
}
this.host = KnownHosts.HashedHostKey.HASH_MAGIC + Util.Byte2str(Util.ToBase64(this
.salt, 0, this.salt.Length)) + KnownHosts.HashedHostKey.HASH_DELIM + Util.Byte2str
(Util.ToBase64(this.hash, 0, this.hash.Length));
this.hashed = true;
}
/// <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);
}
}
