public void KeyVerify(string algorithm, HashAlgorithm hash)
{
MemoryStream cache = new MemoryStream();
NetworkByteWriter nbr_cache = new NetworkByteWriter(cache);
nbr_cache.WriteString(verify_v_c);
nbr_cache.WriteString(verify_v_s);
nbr_cache.WriteBlob(verify_i_c);
nbr_cache.WriteBlob(verify_i_s);
nbr_cache.WriteBlob(verify_k_s);
nbr_cache.WriteMPInt(verify_e);
nbr_cache.WriteMPInt(verify_f);
nbr_cache.WriteMPInt(verify_k);
nbr_cache.Flush();
if (algorithm == "ssh-rsa")
{
verify_h = hash.ComputeHash(cache.ToArray());
RSAParameters RSAKeyInfo = new RSAParameters();
{
MemoryStream ms_tmp = new MemoryStream(verify_k_s);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
BigInteger rsa_e = nbr_tmp.ReadMPInt();
BigInteger rsa_n = nbr_tmp.ReadMPInt();
RSAKeyInfo.Modulus = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_n);
RSAKeyInfo.Exponent = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_e);
}
byte[] rsa_signature_blob;
{
MemoryStream ms_tmp = new MemoryStream(verify_sig);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
rsa_signature_blob = nbr_tmp.ReadBlob();
}
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(RSA);
RSADeformatter.SetHashAlgorithm("SHA1");
byte[] xx2 = SHA1.Create().ComputeHash(verify_h);
bool verify = RSADeformatter.VerifySignature(xx2, rsa_signature_blob);
}
}
public void PrepareCryptoTransforms()
{
byte[] key_cache;
HashAlgorithm hash_key = SHA1.Create();
//
{
MemoryStream ms_cache = new MemoryStream();
NetworkByteWriter nbw_cache = new NetworkByteWriter(ms_cache);
nbw_cache.WriteMPInt(verify_k);
nbw_cache.WriteBytes(verify_h);
nbw_cache.WriteByte((byte)0x41);
nbw_cache.WriteBytes(verify_h);
key_cache = ms_cache.ToArray();
}
byte[] IVc2s = hash_key.ComputeHash(key_cache);
int j = key_cache.Length - verify_h.Length - 1;
key_cache[j] = 0x42;
byte[] IVs2c = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x43;
byte[] Ec2s = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x44;
byte[] Es2c = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x45;
byte[] MACc2s = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x46;
byte[] MACs2c = hash_key.ComputeHash(key_cache);
{
byte[] tmp = new byte[16];
Array.Copy(Ec2s, 0, tmp, 0, tmp.Length);
Ec2s = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(IVc2s, 0, tmp, 0, tmp.Length);
IVc2s = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(Es2c, 0, tmp, 0, tmp.Length);
Es2c = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(IVs2c, 0, tmp, 0, tmp.Length);
IVs2c = tmp;
}
RijndaelManaged rijndael = new RijndaelManaged();
rijndael.Mode = CipherMode.CBC;
rijndael.Padding = PaddingMode.None;
crypto_encryptor = rijndael.CreateEncryptor(Ec2s, IVc2s);
crypto_decryptor = rijndael.CreateDecryptor(Es2c, IVs2c);
crypto_mac_encryptor = HMACSHA1.Create();
((HMAC)crypto_mac_encryptor).Key = MACc2s;
}
public void KeyVerify(string algorithm, HashAlgorithm hash)
{
MemoryStream cache = new MemoryStream();
NetworkByteWriter nbr_cache = new NetworkByteWriter(cache);
nbr_cache.WriteString(verify_v_c);
nbr_cache.WriteString(verify_v_s);
nbr_cache.WriteBlob(verify_i_c);
nbr_cache.WriteBlob(verify_i_s);
nbr_cache.WriteBlob(verify_k_s);
nbr_cache.WriteMPInt(verify_e);
nbr_cache.WriteMPInt(verify_f);
nbr_cache.WriteMPInt(verify_k);
nbr_cache.Flush();
if (algorithm == "ssh-rsa")
{
verify_h = hash.ComputeHash(cache.ToArray());
RSAParameters RSAKeyInfo = new RSAParameters();
{
MemoryStream ms_tmp = new MemoryStream(verify_k_s);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
BigInteger rsa_e = nbr_tmp.ReadMPInt();
BigInteger rsa_n = nbr_tmp.ReadMPInt();
RSAKeyInfo.Modulus = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_n);
RSAKeyInfo.Exponent = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_e);
}
byte[] rsa_signature_blob;
{
MemoryStream ms_tmp = new MemoryStream(verify_sig);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
rsa_signature_blob = nbr_tmp.ReadBlob();
}
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(RSA);
RSADeformatter.SetHashAlgorithm("SHA1");
byte[] xx2 = SHA1.Create().ComputeHash(verify_h);
bool verify = RSADeformatter.VerifySignature(xx2, rsa_signature_blob);
}
}
public void PrepareCryptoTransforms()
{
byte[] key_cache;
HashAlgorithm hash_key = SHA1.Create();
//
{
MemoryStream ms_cache = new MemoryStream();
NetworkByteWriter nbw_cache = new NetworkByteWriter(ms_cache);
nbw_cache.WriteMPInt(verify_k);
nbw_cache.WriteBytes(verify_h);
nbw_cache.WriteByte((byte)0x41);
nbw_cache.WriteBytes(verify_h);
key_cache = ms_cache.ToArray();
}
byte[] IVc2s = hash_key.ComputeHash(key_cache);
int j = key_cache.Length - verify_h.Length - 1;
key_cache[j] = 0x42;
byte[] IVs2c = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x43;
byte[] Ec2s = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x44;
byte[] Es2c = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x45;
byte[] MACc2s = hash_key.ComputeHash(key_cache);
key_cache[j] = 0x46;
byte[] MACs2c = hash_key.ComputeHash(key_cache);
{
byte[] tmp = new byte[16];
Array.Copy(Ec2s, 0, tmp, 0, tmp.Length);
Ec2s = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(IVc2s, 0, tmp, 0, tmp.Length);
IVc2s = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(Es2c, 0, tmp, 0, tmp.Length);
Es2c = tmp;
}
{
byte[] tmp = new byte[16];
Array.Copy(IVs2c, 0, tmp, 0, tmp.Length);
IVs2c = tmp;
}
RijndaelManaged rijndael = new RijndaelManaged();
rijndael.Mode = CipherMode.CBC;
rijndael.Padding = PaddingMode.None;
crypto_encryptor = rijndael.CreateEncryptor(Ec2s, IVc2s);
crypto_decryptor = rijndael.CreateDecryptor(Es2c, IVs2c);
crypto_mac_encryptor = HMACSHA1.Create();
((HMAC)crypto_mac_encryptor).Key = MACc2s;
}
