/// <summary>Extracts secret information from the encrypted key exchange data.</summary>
/// <returns>The secret information derived from the key exchange data.</returns>
/// <param name="rgbData">The key exchange data within which the secret information is hidden. </param>
/// <exception cref="T:System.Security.Cryptography.CryptographicException">The key exchange data verification has failed. </exception>
/// <exception cref="T:System.Security.Cryptography.CryptographicUnexpectedOperationException">The key is missing.</exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.KeyContainerPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// </PermissionSet>
public override byte[] DecryptKeyExchange(byte[] rgbData)
{
if (this.rsa == null)
{
string text = Locale.GetText("No RSA key specified");
throw new CryptographicUnexpectedOperationException(text);
}
SHA1 hash = SHA1.Create();
byte[] array = PKCS1.Decrypt_OAEP(this.rsa, hash, rgbData);
if (array != null)
{
return(array);
}
throw new CryptographicException(Locale.GetText("OAEP decoding error."));
}
public override byte[] DecryptKeyExchange(byte[] rgbData)
{
if (rsa == null)
{
string msg = Locale.GetText("No RSA key specified");
throw new CryptographicUnexpectedOperationException(msg);
}
SHA1 sha1 = SHA1.Create();
byte[] result = PKCS1.Decrypt_OAEP(rsa, sha1, rgbData);
if (result != null)
{
return(result);
}
throw new CryptographicException(Locale.GetText("OAEP decoding error."));
}
