public static string Decrypt(this IdentityCoreKeyHandler handler, KeyDescriptor keyDescriptor, string encryptedData)
{
string EncryptionKey = keyDescriptor?.SecretKey?.Secret;
var signature = keyDescriptor.KeySignature.Signature;
var lastKey = EncryptionKey.Insert(EncryptionKey.Length, signature);
encryptedData = encryptedData.Replace(" ", "+");
byte[] cipherBytes = Convert.FromBase64String(encryptedData);
using (Aes encryptor = Aes.Create())
{
Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(lastKey, new byte[] { 0x64, 0x76, 0x65, 0x64, 0x65, 0x76, 0x79, 0x88, 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65 });
encryptor.Key = pdb.GetBytes(32);
encryptor.IV = pdb.GetBytes(16);
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(cipherBytes, 0, cipherBytes.Length);
cs.Close();
}
encryptedData = Encoding.Unicode.GetString(ms.ToArray());
}
}
return(encryptedData);
}
internal static string Encrypt(this IdentityCoreKeyHandler handler, KeyDescriptor keyDescriptor, string payload)
{
string EncryptionKey = keyDescriptor?.SecretKey?.Secret;
var signature = keyDescriptor.KeySignature.Signature;
var lastKey = EncryptionKey.Insert(EncryptionKey.Length, signature);
byte[] clearBytes = Encoding.Unicode.GetBytes(payload);
using (Aes encryptor = Aes.Create())
{
Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(lastKey, new byte[] { 0x64, 0x76, 0x65, 0x64, 0x65, 0x76, 0x79, 0x88, 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65 });
encryptor.Key = pdb.GetBytes(32);
encryptor.IV = pdb.GetBytes(16);
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(clearBytes, 0, clearBytes.Length);
cs.Close();
}
payload = Convert.ToBase64String(ms.ToArray());
}
}
return(payload);
}
public PrimeIdentityKey(KeyDescriptor keyDescriptor)
{
handler = new IdentityCoreKeyHandler();
KeyDescriptor = keyDescriptor;
}
