public string EncryptData(string data, Algorithm.StringTransformationFormat inputStringEncode, Algorithm.Cryptography cryptographyAlgorithm, Algorithm.StringEncodeFormat outputStringEncode)
{
string encryptText = string.Empty;
if (!string.IsNullOrEmpty(data))
{
byte[] cipherText = null;
try
{
BinaryEncodeHelper encodeHelper = new BinaryEncodeHelper(Algorithm.StringTransformationFormat.UTF8);
byte[] dataBinary = encodeHelper.Decode(data);
switch (outputStringEncode)
{
case Algorithm.StringEncodeFormat.Base32:
{
encodeHelper.SetEncodeFormat(Algorithm.StringTransformationFormat.Base32);
break;
}
case Algorithm.StringEncodeFormat.Base64:
{
encodeHelper.SetEncodeFormat(Algorithm.StringTransformationFormat.Base64);
break;
}
}
switch (cryptographyAlgorithm)
{
case Algorithm.Cryptography.AES:
{
AESCryptography aes = new AESCryptography();
cipherText = aes.EncryptData(dataBinary);
m_Password = encodeHelper.Encode(aes.Password);
m_Salt = encodeHelper.Encode(aes.Salt);
break;
}
case Algorithm.Cryptography.RSA:
{
RSACryptography rsa = new RSACryptography();
cipherText = rsa.EncryptData(dataBinary);
BinaryEncodeHelper encodeLittleHelper = new BinaryEncodeHelper(Algorithm.StringTransformationFormat.UTF8);
m_Password = encodeHelper.Encode(encodeLittleHelper.Decode(rsa.PublicKey));
break;
}
}
if (cipherText != null)
{
encryptText = encodeHelper.Encode(cipherText);
}
}
catch (Exception)
{
throw;
}
}
return(encryptText);
}
public string DecryptData(string encryptText, Algorithm.StringEncodeFormat inputStringEncode, Algorithm.Cryptography cryptographyAlgorithm, Algorithm.StringTransformationFormat outputStringEncode)
{
string data = string.Empty;
if (!string.IsNullOrEmpty(encryptText))
{
byte[] cipherText = null;
byte[] password = null;
byte[] salt = null;
try
{
BinaryEncodeHelper encodeHelper = new BinaryEncodeHelper(Algorithm.StringTransformationFormat.Base64);
switch (inputStringEncode)
{
case Algorithm.StringEncodeFormat.Base32:
{
encodeHelper.SetEncodeFormat(Algorithm.StringTransformationFormat.Base32);
break;
}
case Algorithm.StringEncodeFormat.Base64:
{
encodeHelper.SetEncodeFormat(Algorithm.StringTransformationFormat.Base64);
break;
}
}
cipherText = encodeHelper.Decode(encryptText);
if (!string.IsNullOrEmpty(m_Password))
{
password = encodeHelper.Decode(m_Password);
}
if (!string.IsNullOrEmpty(m_Salt))
{
salt = encodeHelper.Decode(m_Salt);
}
byte[] text = null;
switch (cryptographyAlgorithm)
{
case Algorithm.Cryptography.AES:
{
if (cipherText != null && password != null && salt != null)
{
AESCryptography aes = new AESCryptography(password, salt);
text = aes.DecryptData(cipherText);
}
break;
}
case Algorithm.Cryptography.RSA:
{
RSACryptography rsa = new RSACryptography();
text = rsa.DecryptData(cipherText);
break;
}
}
if (text != null)
{
encodeHelper.SetEncodeFormat(outputStringEncode);
data = encodeHelper.Encode(text);
}
}
catch (Exception)
{
throw;
}
}
return(data);
}
