private System.Security.Cryptography.SymmetricAlgorithm CreateProvider(SymmetricAlgName algorithmName)
{
switch (algorithmName)
{
case SymmetricAlgName.AES:
return(System.Security.Cryptography.Aes.Create());
case SymmetricAlgName.DES:
return(System.Security.Cryptography.DES.Create());
case SymmetricAlgName.TripleDES:
return(System.Security.Cryptography.TripleDES.Create());
default:
throw new NotSupportedException($"Unsupported symmetric algorithm '{algorithmName}'.");
}
}
public SymmetricCrypto(SymmetricAlgName algorithmName)
{
this.AlgorithmName = algorithmName;
this.provider = CreateProvider(algorithmName);
}