protected override void engineInit(
KeyGenerationParameters parameters)
{
this.random = parameters.Random;
this.strength = (parameters.Strength + 7) / 8;
if (strength == 0 || strength == (168 / 8))
{
strength = DesEdeParameters.DesEdeKeyLength;
}
else if (strength == (112 / 8))
{
strength = 2 * DesEdeParameters.DesKeyLength;
}
else if (strength != DesEdeParameters.DesEdeKeyLength
&& strength != (2 * DesEdeParameters.DesKeyLength))
{
throw new ArgumentException("DESede key must be "
+ (DesEdeParameters.DesEdeKeyLength * 8) + " or "
+ (2 * 8 * DesEdeParameters.DesKeyLength)
+ " bits long.");
}
}