/// <summary>Constructor: create Deck from key phrase.
/// Creates a cipher with a key based on the
/// specified string.</summary>
public PontifexSolitaire(string keyPhrase) {
_keyDeck = new Deck();
// Shuffle deck according to key phrase.
if (keyPhrase.Length > 0) {
char[] keyPhrasechar = keyPhrase.ToCharArray();
Card tempCard;
for (int i = 0; i < keyPhrase.Length; i++) {
// The Solitaire 'spec' says "Perform the Solitaire operation, but
// instead of Step 5, do another count cut based on the first
// character of the passphrase" HOWEVER validating against the
// test-vectors REQUIRES that the cut is perfomed using the
// _current_ character and not always the first.
int cut_size = GetCharValue(keyPhrasechar[i]); //[1]);
if (cut_size > 0) {
// Perform the Solitaire operation, but instead of Step 5.
// do another count cut based on the current character
// of the passphrase
NextKeyStream();
tempCard = _keyDeck.PeekBottom(1); // check card on bottom
_keyDeck.CutTop(cut_size); // perform cut
_keyDeck.MoveDown(_keyDeck.FindTop(tempCard),
_keyDeck.Count() - _keyDeck.FindTop(tempCard));
// put the card back on the bottom
} // if (cut_size > 0)
} // for i
}
} // PontifexSolitaire(String)
/// <summary>Constructor: specify Deck</summary>
public PontifexSolitaire (Deck useDeck) {
_keyDeck = useDeck;
}
/// <summary>Constructor: defaults to empty, ordered Deck</summary>
public PontifexSolitaire () {
_keyDeck = new Deck();
}