private HASH genHash()
{
try
{
Type t=Type.GetType(jsch.getConfig("md5"));
hash=(HASH)Activator.CreateInstance(t);
hash.init();
}
catch//(Exception e)
{
}
return hash;
}
internal byte[] genKey(byte[] passphrase, byte[] iv)
{
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);
tmp=hash.digest();
Array.Copy(tmp, 0, hn, index, tmp.Length);
index+=tmp.Length;
}
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();
Array.Copy(tmp, 0, hn, index, tmp.Length);
index+=tmp.Length;
}
Array.Copy(hn, 0, key, 0, key.Length);
}
}
catch(Exception e)
{
Console.WriteLine(e);
}
return key;
}
internal static String getFingerPrint(HASH hash, byte[] data)
{
try
{
hash.init();
hash.update(data, 0, data.Length);
byte[] foo=hash.digest();
System.Text.StringBuilder sb=new System.Text.StringBuilder();
uint bar;
for(int i=0; i<foo.Length;i++)
{
bar=(byte)(foo[i]&0xff);
sb.Append(chars[(bar>>4)&0xf]);
sb.Append(chars[(bar)&0xf]);
if(i+1<foo.Length)
sb.Append(":");
}
return sb.ToString();
}
catch
{
return "???";
}
}
public String getFingerPrint()
{
if(hash==null) hash=genHash();
byte[] kblob=getPublicKeyBlob();
if(kblob==null) return null;
return getKeySize()+" "+Util.getFingerPrint(hash, kblob);
}
internal IdentityFile(String identity, JSch jsch)
{
this.identity=identity;
this.jsch=jsch;
try
{
Type c=Type.GetType(jsch.getConfig("3des-cbc"));
cipher=(Cipher)Activator.CreateInstance(c);
key=new byte[cipher.getBlockSize()]; // 24
iv=new byte[cipher.getIVSize()]; // 8
c=Type.GetType(jsch.getConfig("md5"));
hash=(HASH)(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 JSchException("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 JSchException("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=Util.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 JSchException("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=Util.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=Util.fromBase64(buf, start, i-start);
}
}
catch(Exception e)
{
Console.WriteLine("Identity: "+e);
if(e is JSchException) throw (JSchException)e;
throw new JSchException(e.ToString());
}
}
