public static KeyPair genKeyPair(JSch jsch, int type, int key_size)
{
KeyPair kpair = null;
if (type == DSA)
kpair = new KeyPairDSA(jsch);
else if (type == RSA)
kpair = new KeyPairRSA(jsch);
if (kpair != null)
kpair.generate(key_size);
return kpair;
}
public static KeyPair load(JSch 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 JSchException("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 JSchException("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 = Util.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)
{
Buffer _buf = new Buffer(data);
_buf.getInt(); // 0x3f6ff9be
_buf.getInt();
byte[] _type = _buf.getString();
byte[] _cipher = _buf.getString();
string cipher = Util.getString(_cipher);
if (cipher.Equals("3des-cbc"))
{
_buf.getInt();
byte[] foo = new byte[data.Length - _buf.OffSet];
_buf.getByte(foo);
data = foo;
encrypted = true;
throw new JSchException("unknown privatekey format: " + prvkey);
}
else if (cipher.Equals("none"))
{
_buf.getInt();
_buf.getInt();
encrypted = false;
byte[] foo = new byte[data.Length - _buf.OffSet];
_buf.getByte(foo);
data = foo;
}
}
if (pubkey != null)
{
try
{
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 = Util.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 = Util.fromBase64(buf, start, i - start);
}
}
}
}
catch
{ }
}
}
catch (Exception e)
{
if (e is JSchException) throw (JSchException)e;
throw new JSchException(e.ToString());
}
KeyPair 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 JSchException("invaid privatekey: " + prvkey);
}
}
}
return kpair;
}