/// <summary>
/// To provide byte padding to create an instance.
/// Byte padding to provide that kind of 'ANSI X.923', 'ISO 10126', 'PKCS7' is.
/// </summary>
/// <param name="paddingType">type The type of padding bytes (ANSI X.923 : ANSIX923, ISO 10126 : ISO10126, PKCS7 : PKCS7)</param>
/// <returns>Byte padding instance, if that does not support the null of the padding bytes is returned.</returns>
public static BlockPadding GetInstance(string paddingType) {
paddingType.ShouldNotBeWhiteSpace("paddingType");
var isCreate = false;
if(_instance == null) {
isCreate = true;
}
else if(_instance.PaddingType.Equals(paddingType) == false) {
isCreate = true;
}
if(isCreate) {
switch(paddingType.ToUpper()) {
case ANSIX:
_instance = new AnsiX923Padding();
break;
case ISO:
case PKCS7:
default:
_instance = null;
break;
}
}
return _instance;
}
/// <summary>
/// To provide byte padding to create an instance.
/// Byte padding to provide that kind of 'ANSI X.923', 'ISO 10126', 'PKCS7' is.
/// </summary>
/// <param name="paddingType">type The type of padding bytes (ANSI X.923 : ANSIX923, ISO 10126 : ISO10126, PKCS7 : PKCS7)</param>
/// <returns>Byte padding instance, if that does not support the null of the padding bytes is returned.</returns>
public static BlockPadding GetInstance(string paddingType)
{
paddingType.ShouldNotBeWhiteSpace("paddingType");
var isCreate = false;
if (_instance == null)
{
isCreate = true;
}
else if (_instance.PaddingType.Equals(paddingType) == false)
{
isCreate = true;
}
if (isCreate)
{
switch (paddingType.ToUpper())
{
case ANSIX:
_instance = new AnsiX923Padding();
break;
case ISO:
case PKCS7:
default:
_instance = null;
break;
}
}
return(_instance);
}
