bool decrypt_rsa()
{
// byte[] p_array;
// byte[] q_array;
// byte[] dmp1_array;
// byte[] dmq1_array;
// byte[] iqmp_array;
try
{
byte[] plain;
if(encrypted)
{
if(keytype==OPENSSH)
{
cipher.init(Cipher.DECRYPT_MODE, key, iv);
plain=new byte[encoded_data.Length];
cipher.update(encoded_data, 0, encoded_data.Length, plain, 0);
}
else if(keytype==FSECURE)
{
for(int i=0; i<iv.Length; i++)iv[i]=0;
cipher.init(Cipher.DECRYPT_MODE, key, iv);
plain=new byte[encoded_data.Length];
cipher.update(encoded_data, 0, encoded_data.Length, plain, 0);
}
else
{
return false;
}
}
else
{
if(n_array!=null) return true;
plain=encoded_data;
}
if(keytype==FSECURE)
{ // FSecure
Buffer buf=new Buffer(plain);
int foo=buf.getInt();
if(plain.Length!=foo+4)
{
return false;
}
e_array=buf.getMPIntBits();
d_array=buf.getMPIntBits();
n_array=buf.getMPIntBits();
byte[] u_array=buf.getMPIntBits();
p_array=buf.getMPIntBits();
q_array=buf.getMPIntBits();
return true;
}
int index=0;
int Length=0;
if(plain[index]!=0x30)return false;
index++; // SEQUENCE
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
if(plain[index]!=0x02)return false;
index++; // INTEGER
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
index+=Length;
//System.out.println("int: len="+Length);
//System.out.print(Integer.toHexString(plain[index-1]&0xff)+":");
//System.out.println("");
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
n_array=new byte[Length];
Array.Copy(plain, index, n_array, 0, Length);
index+=Length;
/*
System.out.println("int: N len="+Length);
for(int i=0; i<n_array.Length; i++){
System.out.print(Integer.toHexString(n_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
e_array=new byte[Length];
Array.Copy(plain, index, e_array, 0, Length);
index+=Length;
/*
System.out.println("int: E len="+Length);
for(int i=0; i<e_array.Length; i++){
System.out.print(Integer.toHexString(e_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
d_array=new byte[Length];
Array.Copy(plain, index, d_array, 0, Length);
index+=Length;
/*
System.out.println("int: D len="+Length);
for(int i=0; i<d_array.Length; i++){
System.out.print(Integer.toHexString(d_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
p_array=new byte[Length];
Array.Copy(plain, index, p_array, 0, Length);
index+=Length;
/*
System.out.println("int: P len="+Length);
for(int i=0; i<p_array.Length; i++){
System.out.print(Integer.toHexString(p_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
q_array=new byte[Length];
Array.Copy(plain, index, q_array, 0, Length);
index+=Length;
/*
System.out.println("int: q len="+Length);
for(int i=0; i<q_array.Length; i++){
System.out.print(Integer.toHexString(q_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
dmp1_array=new byte[Length];
Array.Copy(plain, index, dmp1_array, 0, Length);
index+=Length;
/*
System.out.println("int: dmp1 len="+Length);
for(int i=0; i<dmp1_array.Length; i++){
System.out.print(Integer.toHexString(dmp1_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
dmq1_array=new byte[Length];
Array.Copy(plain, index, dmq1_array, 0, Length);
index+=Length;
/*
System.out.println("int: dmq1 len="+Length);
for(int i=0; i<dmq1_array.Length; i++){
System.out.print(Integer.toHexString(dmq1_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
iqmp_array=new byte[Length];
Array.Copy(plain, index, iqmp_array, 0, Length);
index+=Length;
/*
System.out.println("int: iqmp len="+Length);
for(int i=0; i<iqmp_array.Length; i++){
System.out.print(Integer.toHexString(iqmp_array[i]&0xff)+":");
}
System.out.println("");
*/
}
catch
{
//System.out.println(e);
return false;
}
return true;
}
internal override bool parse(byte [] plain)
{
/*
byte[] p_array;
byte[] q_array;
byte[] dmp1_array;
byte[] dmq1_array;
byte[] iqmp_array;
*/
try
{
int index=0;
int Length=0;
if(vendor==VENDOR_FSECURE)
{
if(plain[index]!=0x30)
{ // FSecure
Buffer buf=new Buffer(plain);
pub_array=buf.getMPIntBits();
prv_array=buf.getMPIntBits();
n_array=buf.getMPIntBits();
byte[] u_array=buf.getMPIntBits();
p_array=buf.getMPIntBits();
q_array=buf.getMPIntBits();
return true;
}
return false;
}
index++; // SEQUENCE
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
if(plain[index]!=0x02)return false;
index++; // INTEGER
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
index+=Length;
//System.out.println("int: len="+Length);
//System.out.print(Integer.toHexString(plain[index-1]&0xff)+":");
//System.out.println("");
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
n_array=new byte[Length];
Array.Copy(plain, index, n_array, 0, Length);
index+=Length;
/*
System.out.println("int: N len="+Length);
for(int i=0; i<n_array.Length; i++){
System.out.print(Integer.toHexString(n_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
pub_array=new byte[Length];
Array.Copy(plain, index, pub_array, 0, Length);
index+=Length;
/*
System.out.println("int: E len="+Length);
for(int i=0; i<pub_array.Length; i++){
System.out.print(Integer.toHexString(pub_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
prv_array=new byte[Length];
Array.Copy(plain, index, prv_array, 0, Length);
index+=Length;
/*
System.out.println("int: prv len="+Length);
for(int i=0; i<prv_array.Length; i++){
System.out.print(Integer.toHexString(prv_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
p_array=new byte[Length];
Array.Copy(plain, index, p_array, 0, Length);
index+=Length;
/*
System.out.println("int: P len="+Length);
for(int i=0; i<p_array.Length; i++){
System.out.print(Integer.toHexString(p_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
q_array=new byte[Length];
Array.Copy(plain, index, q_array, 0, Length);
index+=Length;
/*
System.out.println("int: q len="+Length);
for(int i=0; i<q_array.Length; i++){
System.out.print(Integer.toHexString(q_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
ep_array=new byte[Length];
Array.Copy(plain, index, ep_array, 0, Length);
index+=Length;
/*
System.out.println("int: ep len="+Length);
for(int i=0; i<ep_array.Length; i++){
System.out.print(Integer.toHexString(ep_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
eq_array=new byte[Length];
Array.Copy(plain, index, eq_array, 0, Length);
index+=Length;
/*
System.out.println("int: eq len="+Length);
for(int i=0; i<eq_array.Length; i++){
System.out.print(Integer.toHexString(eq_array[i]&0xff)+":");
}
System.out.println("");
*/
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
c_array=new byte[Length];
Array.Copy(plain, index, c_array, 0, Length);
index+=Length;
/*
System.out.println("int: c len="+Length);
for(int i=0; i<c_array.Length; i++){
System.out.print(Integer.toHexString(c_array[i]&0xff)+":");
}
System.out.println("");
*/
}
catch//(Exception e)
{
//System.out.println(e);
return false;
}
return true;
}
bool decrypt_dss()
{
try
{
byte[] plain;
if(encrypted)
{
if(keytype==OPENSSH)
{
cipher.init(Cipher.DECRYPT_MODE, key, iv);
plain=new byte[encoded_data.Length];
cipher.update(encoded_data, 0, encoded_data.Length, plain, 0);
/*
for(int i=0; i<plain.Length; i++){
System.out.print(Integer.toHexString(plain[i]&0xff)+":");
}
System.out.println("");
*/
}
else if(keytype==FSECURE)
{
for(int i=0; i<iv.Length; i++)iv[i]=0;
cipher.init(Cipher.DECRYPT_MODE, key, iv);
plain=new byte[encoded_data.Length];
cipher.update(encoded_data, 0, encoded_data.Length, plain, 0);
}
else
{
return false;
}
}
else
{
if(P_array!=null) return true;
plain=encoded_data;
}
if(keytype==FSECURE)
{ // FSecure
Buffer buf=new Buffer(plain);
int foo=buf.getInt();
if(plain.Length!=foo+4)
{
return false;
}
P_array=buf.getMPIntBits();
G_array=buf.getMPIntBits();
Q_array=buf.getMPIntBits();
pub_array=buf.getMPIntBits();
prv_array=buf.getMPIntBits();
return true;
}
int index=0;
int Length=0;
if(plain[index]!=0x30)return false;
index++; // SEQUENCE
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
if(plain[index]!=0x02)return false;
index++; // INTEGER
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
index+=Length;
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
P_array=new byte[Length];
Array.Copy(plain, index, P_array, 0, Length);
index+=Length;
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
Q_array=new byte[Length];
Array.Copy(plain, index, Q_array, 0, Length);
index+=Length;
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
G_array=new byte[Length];
Array.Copy(plain, index, G_array, 0, Length);
index+=Length;
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
pub_array=new byte[Length];
Array.Copy(plain, index, pub_array, 0, Length);
index+=Length;
index++;
Length=plain[index++]&0xff;
if((Length&0x80)!=0)
{
int foo=Length&0x7f; Length=0;
while(foo-->0){ Length=(Length<<8)+(plain[index++]&0xff); }
}
prv_array=new byte[Length];
Array.Copy(plain, index, prv_array, 0, Length);
index+=Length;
}
catch
{
//System.out.println(e);
//e.printStackTrace();
return false;
}
return true;
}