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; }