// If time to crack is less than one day, and password is considered
// strong or better based on the number of bits, rename strength to
// 'easily cracked'.
- var z = zxcvbn(entropy.cleanStr);
- var timeToCrack = z.crack_times_seconds.offline_fast_hashing_1e10_per_second;
- if (timeToCrack < 86400 && entropy.binaryStr.length >= 128) {
- strength = "easily cracked";
- if (z.feedback.warning != "") {
- strength = strength + " - " + z.feedback.warning;
- };
+ try {
+ var z = zxcvbn(entropy.base.parts.join(""));
+ var timeToCrack = z.crack_times_seconds.offline_fast_hashing_1e10_per_second;
+ if (timeToCrack < 86400 && entropy.binaryStr.length >= 128) {
+ strength = "easily cracked";
+ if (z.feedback.warning != "") {
+ strength = strength + " - " + z.feedback.warning;
+ };
+ }
+ }
+ catch (e) {
+ strength = "unknown";
+ console.log("Error detecting entropy strength with zxcvbn:");
+ console.log(e);
}
var bitsStr = getNumberOfEntropyBits(entropy);
var wordCount = Math.floor(entropy.binaryStr.length / 32) * 3;
+ var entropyTypeStr = getEntropyTypeStr(entropy);
DOM.entropyFiltered.html(entropy.cleanHtml);
- DOM.entropyType.text(entropy.base.str);
+ DOM.entropyType.text(entropyTypeStr);
DOM.entropyStrength.text(strength);
DOM.entropyEventCount.text(entropy.base.ints.length);
DOM.entropyBits.text(bitsStr);
return bitsStr
}
+ function getEntropyTypeStr(entropy) {
+ var typeStr = entropy.base.str;
+ // Add some detail if these are cards
+ if (entropy.base.asInt == 52) {
+ var cardDetail = []; // array of message strings
+ // Detect duplicates
+ var dupes = [];
+ var dupeTracker = {};
+ for (var i=0; i<entropy.base.parts.length; i++) {
+ var card = entropy.base.parts[i];
+ if (card in dupeTracker) {
+ dupes.push(card);
+ }
+ dupeTracker[card] = true;
+ }
+ if (dupes.length > 0) {
+ var dupeWord = "duplicates";
+ if (dupes.length == 1) {
+ dupeWord = "duplicate";
+ }
+ var msg = dupes.length + " " + dupeWord + ": " + dupes.slice(0,3).join(" ");
+ if (dupes.length > 3) {
+ msg += "...";
+ }
+ cardDetail.push(msg);
+ }
+ // Detect full deck
+ var uniqueCards = [];
+ for (var uniqueCard in dupeTracker) {
+ uniqueCards.push(uniqueCard);
+ }
+ if (uniqueCards.length == 52) {
+ cardDetail.unshift("full deck");
+ }
+ // Add card details to typeStr
+ if (cardDetail.length > 0) {
+ typeStr += " (" + cardDetail.join(", ") + ")";
+ }
+ }
+ return typeStr;
+ }
+
// Depends on BigInteger
function factorial(n) {
if (n == 0) {