Implemented support for custom binary entropy source
This commit is contained in:
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@ -1,148 +0,0 @@
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package io.rudefox.burrow;
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import com.bjdweck.bitcoin.mnemonic.Entropy;
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import com.diogonunes.jcolor.AnsiFormat;
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import java.util.Scanner;
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import java.util.regex.Pattern;
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import static com.diogonunes.jcolor.Attribute.*;
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public class Dice8EntropyGenerator {
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public static final AnsiFormat RED_STYLE = new AnsiFormat(WHITE_TEXT(), RED_BACK(), BOLD());
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public static final AnsiFormat GREEN_STYLE = new AnsiFormat(BLACK_TEXT(), GREEN_BACK(), BOLD());
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public static final AnsiFormat BLUE_STYLE = new AnsiFormat(WHITE_TEXT(), BLUE_BACK(), BOLD());
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public static final int DICE_PER_ROLL = 11;
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private final int targetBitsOfEntropy;
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private final Scanner inputScanner;
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private final boolean ansiColorOutput;
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private Entropy entropy = new Entropy();
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public Dice8EntropyGenerator(int targetBitsOfEntropy, Scanner inputScanner, boolean ansiColorOutput) {
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this.targetBitsOfEntropy = targetBitsOfEntropy;
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this.inputScanner = inputScanner;
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this.ansiColorOutput = ansiColorOutput;
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}
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Entropy generate() {
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entropy = new Entropy();
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for (int rollSetCount = 0; entropy.getBitLength() < targetBitsOfEntropy; rollSetCount++)
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doDiceRoll(rollSetCount);
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return entropy.truncate(targetBitsOfEntropy).appendChecksum();
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}
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private void doDiceRoll(int currentRollSet) {
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String eventString = scanNextRollSetString();
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StringBuilder rollValuesLine = new StringBuilder("|");
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for (int rollNumber = 0; rollNumber < DICE_PER_ROLL; rollNumber++) {
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int rollValue = Integer.parseInt(eventString.charAt(rollNumber) + "");
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String formatString =
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rollNumber == 3 || rollNumber == 7 ? " %d |" : " %d |";
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rollValuesLine.append(String.format(formatString, rollValue));
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entropy = entropy.appendBits(rollValue - 1, 3);
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}
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System.out.printf("%n%s%n%s%n%s%n%n",
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rollValuesLine,
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getBitsLine(),
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getSeedWordsLine(currentRollSet)
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);
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}
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private String scanNextRollSetString() {
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String rollSetString = "";
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Pattern rollSetPattern = Pattern.compile(String.format("[1-8]{%d}", DICE_PER_ROLL));
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while (!rollSetPattern.matcher(rollSetString).matches()) {
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System.out.print("Input 11 x 8-sided dice rolls [1-8]: ");
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rollSetString = inputScanner.next();
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}
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return rollSetString;
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}
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private StringBuilder getBitsLine() {
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String entropyBitString = entropy.toString();
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String currentRollSetBitString =
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entropyBitString.substring(entropyBitString.length() - (DICE_PER_ROLL * 3));
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StringBuilder rollSetBitsLine = new StringBuilder("|");
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for (int rollSetBitIndex = 0; rollSetBitIndex < currentRollSetBitString.length(); rollSetBitIndex++) {
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int entropyBitIndex = entropyBitString.length() - currentRollSetBitString.length() + rollSetBitIndex;
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if (entropyBitIndex < targetBitsOfEntropy)
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rollSetBitsLine.append(styleBit("" + currentRollSetBitString.charAt(rollSetBitIndex), entropyBitIndex, rollSetBitIndex));
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else
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rollSetBitsLine.append("-");
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if (rollSetBitIndex == 32)
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rollSetBitsLine.append("|");
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else if (rollSetBitIndex % 3 == 2)
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rollSetBitsLine.append(styleBit(" ", entropyBitIndex, rollSetBitIndex));
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else if (rollSetBitIndex % 11 == 10)
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rollSetBitsLine.append(" | ");
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}
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return rollSetBitsLine;
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}
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private String styleBit(String bit, int globalEntropyBitIndex, int currentRollSetBitIndex) {
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if (!ansiColorOutput || globalEntropyBitIndex >= targetBitsOfEntropy)
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return bit;
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return getBitFormat(currentRollSetBitIndex).format(bit);
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}
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private AnsiFormat getBitFormat(int rollSetBitIndex) {
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int wordBitIndex = rollSetBitIndex % 11;
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if (wordBitIndex == 0)
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return RED_STYLE;
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if (wordBitIndex <= 6)
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return GREEN_STYLE;
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return BLUE_STYLE;
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}
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private String getSeedWordsLine(int rollSet) {
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int baseIndex = rollSet * 3;
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return String.format(
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"|%-15s|%-17s|%-15s|",
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getFormattedSeedWord(baseIndex),
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getFormattedSeedWord(baseIndex + 1),
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getFormattedSeedWord(baseIndex + 2));
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}
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private String getFormattedSeedWord(int index) {
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int lastWordIndex = (3 * targetBitsOfEntropy / 32) - 1;
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String seedWord = index != lastWordIndex ? entropy.getWord(index) : "CHECKWORD";
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return String.format(" %2d. %s", index + 1, seedWord);
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}
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}
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@ -3,21 +3,21 @@ package io.rudefox.burrow;
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import com.bjdweck.bitcoin.mnemonic.Entropy;
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import com.bjdweck.math.UnsignedInt;
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class DiceEventBuffer {
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class EventBuffer {
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private final int diceBase;
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private final int eventBase;
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private final StringBuilder buffer;
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private final int targetBitsOfEntropy;
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DiceEventBuffer(int targetBitsOfEntropy, int diceBase) {
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EventBuffer(int targetBitsOfEntropy, int eventBase) {
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this.diceBase = diceBase;
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this.eventBase = eventBase;
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this.targetBitsOfEntropy = targetBitsOfEntropy;
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this.buffer = new StringBuilder(getRequiredEvents());
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}
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int getRequiredEvents() {
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return (int) Math.ceil(this.targetBitsOfEntropy * Math.log(2) / Math.log(diceBase));
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return (int) Math.ceil(this.targetBitsOfEntropy * Math.log(2) / Math.log(eventBase));
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}
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void appendEvents(String eventString) {
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@ -27,7 +27,7 @@ class DiceEventBuffer {
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}
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Entropy toEntropy() {
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UnsignedInt entropy = new UnsignedInt(toString(), diceBase);
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UnsignedInt entropy = new UnsignedInt(toString(), eventBase);
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byte[] entropyBytes = entropy.getLowestOrderBits(this.targetBitsOfEntropy).toBigEndianByteArray();
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return Entropy.fromRawEntropy(entropyBytes);
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}
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src/main/java/io/rudefox/burrow/InteractiveEntropyGenerator.java
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src/main/java/io/rudefox/burrow/InteractiveEntropyGenerator.java
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@ -0,0 +1,200 @@
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package io.rudefox.burrow;
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import com.bjdweck.bitcoin.mnemonic.Entropy;
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import com.diogonunes.jcolor.AnsiFormat;
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import java.util.Scanner;
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import java.util.regex.Pattern;
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import static com.diogonunes.jcolor.Attribute.*;
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public class InteractiveEntropyGenerator {
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public static final int BITS_PER_WORD = 11;
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public static final int WORDS_PER_EVENT_SET = 3;
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enum EntropyBase { TWO, EIGHT }
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public static final AnsiFormat RED_STYLE = new AnsiFormat(WHITE_TEXT(), RED_BACK(), BOLD());
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public static final AnsiFormat GREEN_STYLE = new AnsiFormat(BLACK_TEXT(), GREEN_BACK(), BOLD());
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public static final AnsiFormat BLUE_STYLE = new AnsiFormat(WHITE_TEXT(), BLUE_BACK(), BOLD());
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private final EntropyBase entropyBase;
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private final int eventsPerSet;
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private final int bitsPerEvent;
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private final int targetBitsOfEntropy;
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private final Scanner inputScanner;
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private final boolean ansiColorOutput;
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private Entropy entropy = new Entropy();
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public InteractiveEntropyGenerator(int targetBitsOfEntropy, Scanner inputScanner, boolean ansiColorOutput, EntropyBase entropyBase) {
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this.targetBitsOfEntropy = targetBitsOfEntropy;
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this.inputScanner = inputScanner;
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this.ansiColorOutput = ansiColorOutput;
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this.entropyBase = entropyBase;
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this.bitsPerEvent = entropyBase == EntropyBase.EIGHT ? 3 : 1;
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this.eventsPerSet = BITS_PER_WORD * WORDS_PER_EVENT_SET / bitsPerEvent;
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}
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Entropy generate() {
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entropy = new Entropy();
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for (int eventSetCount = 0; entropy.getBitLength() < targetBitsOfEntropy; eventSetCount++)
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doEventSet(eventSetCount);
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return entropy.truncate(targetBitsOfEntropy).appendChecksum();
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}
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private void doEventSet(int currentEventSet) {
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String eventString =
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this.entropyBase == EntropyBase.EIGHT ?
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readNextDice8EventSetString() :
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readNextBinaryEventSetString();
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StringBuilder eventValuesLine = new StringBuilder("|");
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for (int eventIndex = 0; eventIndex < eventsPerSet; eventIndex++) {
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int eventValue = Integer.parseInt(eventString.charAt(eventIndex) + "");
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String formatString = eventIndex == bitsPerEvent || eventIndex == 7 ? " %d |" : " %d |";
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eventValuesLine.append(String.format(formatString, eventValue));
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if (entropyBase == EntropyBase.EIGHT)
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eventValue--;
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entropy = entropy.appendBits(eventValue, bitsPerEvent);
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}
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if (entropyBase == EntropyBase.EIGHT) {
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System.out.printf("%n%s%n%s%n%s%n%n",
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eventValuesLine,
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getBitsLine(),
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getSeedWordsLine(currentEventSet)
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);
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} else {
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System.out.printf("%n%s%n%s%n%n",
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getBitsLine(),
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getSeedWordsLine(currentEventSet)
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);
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}
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}
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private String readNextDice8EventSetString() {
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String eventSetString = "";
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Pattern eventSetPattern = Pattern.compile(String.format("[1-8]{%d}", eventsPerSet));
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while (!eventSetPattern.matcher(eventSetString).matches()) {
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System.out.print("Input 11 x 8-sided dice rolls [1-8]: ");
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eventSetString = inputScanner.next();
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}
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return eventSetString;
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}
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private String readNextBinaryEventSetString() {
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String eventSetString = "";
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Pattern eventSetPattern = Pattern.compile(String.format("[0-1]{%d}", eventsPerSet));
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while (!eventSetPattern.matcher(eventSetString).matches()) {
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System.out.print("Input 33 coin tosses [0-1]: ");
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eventSetString = inputScanner.next();
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}
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return eventSetString;
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}
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private StringBuilder getBitsLine() {
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String entropyBitString = entropy.toString();
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String currentEventSetBitString =
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entropyBitString.substring(entropyBitString.length() - (BITS_PER_WORD * WORDS_PER_EVENT_SET));
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StringBuilder eventSetBitsLine = new StringBuilder("|");
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if (entropyBase == EntropyBase.TWO)
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eventSetBitsLine.append(" ");
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for (int eventSetBitIndex = 0; eventSetBitIndex < currentEventSetBitString.length(); eventSetBitIndex++) {
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int entropyBitIndex = entropyBitString.length() - currentEventSetBitString.length() + eventSetBitIndex;
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if (entropyBitIndex < targetBitsOfEntropy)
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eventSetBitsLine.append(styleBit("" + currentEventSetBitString.charAt(eventSetBitIndex), entropyBitIndex, eventSetBitIndex));
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else
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eventSetBitsLine.append("-");
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if (entropyBase == EntropyBase.EIGHT) {
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if (eventSetBitIndex == 32)
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eventSetBitsLine.append("|");
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else if (eventSetBitIndex % bitsPerEvent == bitsPerEvent - 1)
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eventSetBitsLine.append(styleBit(" ", entropyBitIndex, eventSetBitIndex));
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else if (eventSetBitIndex % BITS_PER_WORD == BITS_PER_WORD - 1)
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eventSetBitsLine.append(" | ");
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}
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if (entropyBase == EntropyBase.TWO) {
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if (eventSetBitIndex == 32)
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eventSetBitsLine.append(" |");
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else if (eventSetBitIndex % BITS_PER_WORD == 0 || eventSetBitIndex % BITS_PER_WORD == 6)
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eventSetBitsLine.append(styleBit(" ", entropyBitIndex, eventSetBitIndex));
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else if (eventSetBitIndex % BITS_PER_WORD == BITS_PER_WORD - 1)
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eventSetBitsLine.append(" | ");
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}
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}
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return eventSetBitsLine;
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}
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private String styleBit(String bit, int globalEntropyBitIndex, int currentRollSetBitIndex) {
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if (!ansiColorOutput || globalEntropyBitIndex >= targetBitsOfEntropy)
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return bit;
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return getBitFormat(currentRollSetBitIndex).format(bit);
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}
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private AnsiFormat getBitFormat(int eventSetBitIndex) {
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int wordBitIndex = eventSetBitIndex % BITS_PER_WORD;
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if (wordBitIndex == 0)
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return RED_STYLE;
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if (wordBitIndex <= 6)
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return GREEN_STYLE;
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return BLUE_STYLE;
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}
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private String getSeedWordsLine(int rollSet) {
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int baseIndex = rollSet * WORDS_PER_EVENT_SET;
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String format = entropyBase == EntropyBase.EIGHT ?
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"|%-15s|%-17s|%-15s|" : "|%-15s|%-15s|%-15s|";
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return String.format(
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format,
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getFormattedSeedWord(baseIndex),
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getFormattedSeedWord(baseIndex + 1),
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getFormattedSeedWord(baseIndex + 2));
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}
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private String getFormattedSeedWord(int index) {
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int lastWordIndex = (WORDS_PER_EVENT_SET * targetBitsOfEntropy / 32) - 1;
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String seedWord = index != lastWordIndex ? entropy.getWord(index) : "CHECKWORD";
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return String.format(" %2d. %s", index + 1, seedWord);
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}
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}
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@ -11,14 +11,19 @@ public class MnemonicCommand implements Runnable {
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private static final int DEFAULT_BITS_OF_ENTROPY = 256;
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private boolean isDiceEntropy() {
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return entropyOptions != null && (entropyOptions.isDice6Entropy || entropyOptions.isDice8Entropy);
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private boolean isCustomEntropy() {
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return entropyOptions != null &&
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(entropyOptions.isDice6Entropy || entropyOptions.isDice8Entropy || entropyOptions.isBinaryEntropy);
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}
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private boolean isInteractiveMode() {
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return entropyOptions != null && entropyOptions.eventMethod.isInteractiveMode;
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}
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private boolean isBinaryInteractiveMode() {
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return isInteractiveMode() && entropyOptions.isBinaryEntropy;
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}
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private boolean isDice6InteractiveMode() {
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return isInteractiveMode() && entropyOptions.isDice6Entropy;
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}
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@ -32,6 +37,10 @@ public class MnemonicCommand implements Runnable {
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static class EntropyOptions {
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@CommandLine.Option(names = {"-2", "--binary-entropy"},
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description = "use a coin or other binary entropy source")
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boolean isBinaryEntropy;
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@CommandLine.Option(names = {"-6", "--dice6-entropy"},
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description = "use 6-sided dice entropy source")
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boolean isDice6Entropy;
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@ -71,50 +80,55 @@ public class MnemonicCommand implements Runnable {
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Entropy getEntropy() {
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if (!isDiceEntropy())
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return getGeneratedEntropy();
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if (!isCustomEntropy())
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return generateEntropy();
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DiceEventBuffer diceEventBuffer;
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EventBuffer eventBuffer;
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if (entropyOptions.isDice6Entropy)
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diceEventBuffer = new DiceEventBuffer(this.targetBitsOfEntropy, 6);
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if (entropyOptions.isBinaryEntropy)
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eventBuffer = new EventBuffer(this.targetBitsOfEntropy, 2);
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else if (entropyOptions.isDice6Entropy)
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eventBuffer = new EventBuffer(this.targetBitsOfEntropy, 6);
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else
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diceEventBuffer = new DiceEventBuffer(this.targetBitsOfEntropy, 8);
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eventBuffer = new EventBuffer(this.targetBitsOfEntropy, 8);
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if (isDice6InteractiveMode())
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return getDice6EntropyInteractive(diceEventBuffer);
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return getDice6EntropyInteractive(eventBuffer);
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if (isDice8InteractiveMode())
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return new Dice8EntropyGenerator(targetBitsOfEntropy, new Scanner(System.in), CommandLine.Help.Ansi.AUTO.enabled()).generate();
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return new InteractiveEntropyGenerator(targetBitsOfEntropy, new Scanner(System.in), CommandLine.Help.Ansi.AUTO.enabled(), InteractiveEntropyGenerator.EntropyBase.EIGHT).generate();
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diceEventBuffer.appendEvents(entropyOptions.eventMethod.getEventString);
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return diceEventBuffer.toEntropy();
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if (isBinaryInteractiveMode())
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return new InteractiveEntropyGenerator(targetBitsOfEntropy, new Scanner(System.in), CommandLine.Help.Ansi.AUTO.enabled(), InteractiveEntropyGenerator.EntropyBase.TWO).generate();
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eventBuffer.appendEvents(entropyOptions.eventMethod.getEventString);
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return eventBuffer.toEntropy();
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}
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private Entropy getDice6EntropyInteractive(DiceEventBuffer diceEventBuffer) {
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private Entropy getDice6EntropyInteractive(EventBuffer eventBuffer) {
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int requiredEvents = diceEventBuffer.getRequiredEvents();
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int requiredEvents = eventBuffer.getRequiredEvents();
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Scanner scanner = new Scanner(System.in);
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boolean firstIteration = true;
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while (diceEventBuffer.events() < requiredEvents) {
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while (eventBuffer.events() < requiredEvents) {
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int remainingEvents = requiredEvents - diceEventBuffer.events();
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System.out.print(String.format("Input %d %sdice rolls [1-6]: ", remainingEvents, (firstIteration ? "" : "more ")));
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int remainingEvents = requiredEvents - eventBuffer.events();
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System.out.printf("Input %d %sdice rolls [1-6]: ", remainingEvents, (firstIteration ? "" : "more "));
|
||||
|
||||
String inputString = scanner.next();
|
||||
|
||||
diceEventBuffer.appendEvents(inputString);
|
||||
eventBuffer.appendEvents(inputString);
|
||||
|
||||
firstIteration = false;
|
||||
}
|
||||
|
||||
return diceEventBuffer.toEntropy();
|
||||
return eventBuffer.toEntropy();
|
||||
}
|
||||
|
||||
private Entropy getGeneratedEntropy() {
|
||||
private Entropy generateEntropy() {
|
||||
|
||||
SecureRandom random = new SecureRandom();
|
||||
int byteLength = targetBitsOfEntropy / 8;
|
||||
|
|
62
src/test/java/io/rudefox/burrow/coin_entropy_tests.java
Normal file
62
src/test/java/io/rudefox/burrow/coin_entropy_tests.java
Normal file
|
@ -0,0 +1,62 @@
|
|||
package io.rudefox.burrow;
|
||||
|
||||
import com.bjdweck.test.CliTestFixture;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import java.io.UnsupportedEncodingException;
|
||||
|
||||
class coin_entropy_tests extends CliTestFixture {
|
||||
|
||||
@Test
|
||||
void with_arguments_interactive_coin_should_generate_mnemonic_sentence() throws UnsupportedEncodingException {
|
||||
|
||||
System.setProperty("picocli.ansi", "false");
|
||||
|
||||
withArgs("mnemonic -i2 --bits 128");
|
||||
|
||||
expectedOutput("Input 33 coin tosses [0-1]: ");
|
||||
provideInput("000001010011100101110111000001010" + EOL);
|
||||
|
||||
expectedOutput(EOL);
|
||||
expectedOutput("| 0 000010 1001 | 1 100101 1101 | 1 100000 1010 |" + EOL);
|
||||
expectedOutput("| 1. ahead | 2. slight | 3. scout |" + EOL);
|
||||
expectedOutput(EOL);
|
||||
|
||||
expectedOutput("Input 33 coin tosses [0-1]: ");
|
||||
provideInput("000001010011100101110111000001010" + EOL);
|
||||
|
||||
expectedOutput(EOL);
|
||||
expectedOutput("| 0 000010 1001 | 1 100101 1101 | 1 100000 1010 |" + EOL);
|
||||
expectedOutput("| 4. ahead | 5. slight | 6. scout |" + EOL);
|
||||
expectedOutput(EOL);
|
||||
|
||||
expectedOutput("Input 33 coin tosses [0-1]: ");
|
||||
provideInput("000001010011100101110111000001010" + EOL);
|
||||
|
||||
expectedOutput(EOL);
|
||||
expectedOutput("| 0 000010 1001 | 1 100101 1101 | 1 100000 1010 |" + EOL);
|
||||
expectedOutput("| 7. ahead | 8. slight | 9. scout |" + EOL);
|
||||
expectedOutput(EOL);
|
||||
|
||||
expectedOutput("Input 33 coin tosses [0-1]: ");
|
||||
provideInput("000001010011100101110111000001010" + EOL);
|
||||
|
||||
expectedOutput(EOL);
|
||||
expectedOutput("| 0 000010 1001 | 1 100101 1101 | 1 100000 ---- |" + EOL);
|
||||
expectedOutput("| 10. ahead | 11. slight | 12. CHECKWORD |" + EOL);
|
||||
expectedOutput(EOL);
|
||||
|
||||
expectedOutput("ahead slight scout ahead slight scout ahead slight scout ahead slight scan" + EOL);
|
||||
|
||||
doMain();
|
||||
|
||||
verifyOutput();
|
||||
}
|
||||
|
||||
private void doMain() {
|
||||
|
||||
setInput();
|
||||
|
||||
RudefoxBurrow.main(getArgs());
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user