/// <summary>Creates the encrypted key exchange data from the specified input data.</summary>
/// <returns>The encrypted key exchange data to be sent to the intended recipient.</returns>
/// <param name="rgbData">The secret information to be passed in the key exchange. </param>
/// <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[] CreateKeyExchange(byte[] rgbData)
{
if (this.random == null)
{
this.random = RandomNumberGenerator.Create();
}
if (this.rsa == null)
{
string text = Locale.GetText("No RSA key specified");
throw new CryptographicUnexpectedOperationException(text);
}
SHA1 hash = SHA1.Create();
return(PKCS1.Encrypt_OAEP(this.rsa, hash, this.random, rgbData));
}
public override byte[] CreateKeyExchange(byte[] rgbData)
{
if (random == null)
{
random = RandomNumberGenerator.Create(); // create default
}
if (rsa == null)
{
string msg = Locale.GetText("No RSA key specified");
throw new CryptographicUnexpectedOperationException(msg);
}
SHA1 sha1 = SHA1.Create();
return(PKCS1.Encrypt_OAEP(rsa, sha1, random, rgbData));
}