/// <summary>
/// Decrypts a string
/// </summary>
/// <param name="encryptedData">Encrypted data</param>
/// <returns>Decrypted string</returns>
public string Decrypt(string encryptedData)
{
string retVal = string.Empty;
if (this.CertificateFile != null)
{
RSAEncryptionHelper certificateHelper = new RSAEncryptionHelper(2048);
retVal = certificateHelper.Decrypt(encryptedData, false, this.CertificateFile);
}
return(retVal);
}
/// <summary>
/// Decrypt a give string
/// </summary>
/// <param name="encryptedString">The original encrypted string</param>
/// <returns>The decrytped string</returns>
public string Decrypt(string encryptedString)
{
string retVal = string.Empty;
if (!string.IsNullOrEmpty(encryptedString))
{
using (var p = RSAEncryptionHelper.FromXmlString(this.GetKeyFileContents(this.PrivateKeyFile)))
{
retVal = Encoding.UTF8.GetString(p.Decrypt(Convert.FromBase64String(encryptedString), null));
}
}
return(retVal);
}
/// <summary>
/// Encrypt a give string
/// </summary>
/// <param name="decryptedString">The original decrypted string</param>
/// <returns>The encrypted string</returns>
public string Encrypt(string decryptedString)
{
string retVal = string.Empty;
if (!string.IsNullOrEmpty(decryptedString))
{
using (var p = RSAEncryptionHelper.FromXmlString(this.GetKeyFileContents(this.PrivateKeyFile)))
{
byte[] encryptedBytes = p.Encrypt(System.Text.Encoding.UTF8.GetBytes(decryptedString), null);
retVal = Convert.ToBase64String(encryptedBytes);
}
}
return(retVal);
}
/// <summary>
/// Decrypt given a byte array, padding and a certificate
/// </summary>
/// <param name="encryptedData">Encrypted byte array</param>
/// <param name="useOAEP">Use OAEP Padding</param>
/// <param name="certificate">Encryption Certificate</param>
/// <returns>Decrypted byte array</returns>
public byte[] Decrypt(byte[] encryptedData, bool useOAEP, X509Certificate2 certificate)
{
if (encryptedData == null)
{
throw new ArgumentNullException("encryptedData");
}
if (certificate == null)
{
throw new ArgumentNullException("certificate");
}
using (RSA provider = RSAEncryptionHelper.FromXmlString(this.GetXmlKeyPair(certificate)))
{
return(provider.Decrypt(encryptedData, null));// useOAEP);
}
}
/// <summary>
/// Encrypt some plaintext byte array using padding
/// </summary>
/// <param name="plainData">Plaintext byte array</param>
/// <param name="useOAEP">Use OAEP Padding</param>
/// <param name="certificate">Encryption Certificate</param>
/// <returns>encrypted byte array</returns>
public byte[] Encrypt(byte[] plainData, bool useOAEP, X509Certificate2 certificate)
{
if (plainData == null)
{
throw new ArgumentNullException("plainData");
}
if (certificate == null)
{
throw new ArgumentNullException("certificate");
}
using (RSA provider = RSAEncryptionHelper.FromXmlString(this.GetPublicKey(certificate)))
{
return(provider.Encrypt(plainData, null));// useOAEP);
}
}
