KeyMaterial64 CreateKeyMaterialFromPassphrase(string passphrase)
{
NormalizedPassword normalizedPassword = this.xdsCryptoService.NormalizePassword(passphrase).Result;
KeyMaterial64 hashedPassword = this.xdsCryptoService.HashPassword(normalizedPassword).Result;
return(hashedPassword);
}
public static byte[] EncryptWithPassphrase(string passphrase, byte[] bytesToEncryt)
{
var context = GetContext();
NormalizedPassword normalizedPassword = Instance().NormalizePassword(passphrase).Result;
KeyMaterial64 passwordDerivedkeyMaterial64 = Instance().HashPassword(normalizedPassword).Result;
CipherV2 cipherV2 = Instance().BinaryEncrypt(new Clearbytes(bytesToEncryt), passwordDerivedkeyMaterial64, new RoundsExponent(RoundsExponent.DontMakeRounds), context).Result;
var cipherV2Bytes = Instance().BinaryEncodeXDSSec(cipherV2, context).Result;
return(cipherV2Bytes);
}
public static NormalizedPassword NormalizePassword(PasswordObject password)
{
var normalizedPassword = new NormalizedPassword
{
Id = password.Id,
Encryption = String.IsNullOrEmpty(password.Secret) ? password.Encryption : password.Secret,
Integrity = String.IsNullOrEmpty(password.Secret) ? password.Integrity : password.Secret
};
return(normalizedPassword);
}
public static byte[] DecryptWithPassphrase(string passphrase, byte[] bytesToDecrypt)
{
var context = GetContext();
NormalizedPassword normalizedPassword = Instance().NormalizePassword(passphrase).Result;
KeyMaterial64 passwordDerivedkeyMaterial64 = Instance().HashPassword(normalizedPassword).Result;
CipherV2 cipherV2 = Instance().BinaryDecodeXDSSec(bytesToDecrypt, context).Result;
var response = Instance().BinaryDecrypt(cipherV2, passwordDerivedkeyMaterial64, context);
if (response.IsSuccess)
{
return(response.Result.GetBytes());
}
return(null);
}
public Response <KeyMaterial64> HashPassword(NormalizedPassword normalizedPassword)
{
var response = new Response <KeyMaterial64>();
try
{
Guard.NotNull(normalizedPassword);
EnsurePlatform();
var utf16LeBytes = Encoding.Unicode.GetBytes(normalizedPassword.Text);
var sha512 = this._platform.ComputeSHA512(utf16LeBytes);
response.Result = new KeyMaterial64(sha512);
response.SetSuccess();
}
catch (Exception e)
{
response.SetError(e);
}
return(response);
}
