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Change entropy Strength to Time To Crack

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See issue 78
This commit is contained in:
Ian Coleman
2017-06-17 09:34:50 +10:00
parent ee42e5f712
commit 20f459ce8f
3 changed files with 32 additions and 54 deletions
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src/index.html
+2 -2
View File
@@ -165,8 +165,8 @@
<div class="col-sm-7">
<textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards" data-translate-placeholder></textarea>
<div class="row">
<label class="col-sm-3 control-label" data-translate>Strength</label>
<div class="strength col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label" data-translate><span class="more-info" data-translate-title title="Based on estimates from zxcvbn using Filtered Entropy">Time To Crack</span></label>
<div class="crack-time col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label" data-translate>Event Count</label>
<div class="event-count col-sm-3 form-control-static"></div>
</div>
src/js/index.js
+8 -30
View File
@@ -30,7 +30,7 @@
DOM.entropy = $(".entropy");
DOM.entropyFiltered = DOM.entropyContainer.find(".filtered");
DOM.entropyType = DOM.entropyContainer.find(".type");
DOM.entropyStrength = DOM.entropyContainer.find(".strength");
DOM.entropyCrackTime = DOM.entropyContainer.find(".crack-time");
DOM.entropyEventCount = DOM.entropyContainer.find(".event-count");
DOM.entropyBits = DOM.entropyContainer.find(".bits");
DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
@@ -915,7 +915,7 @@
}
function clearEntropyFeedback() {
DOM.entropyStrength.text("...");
DOM.entropyCrackTime.text("...");
DOM.entropyType.text("");
DOM.entropyWordCount.text("0");
DOM.entropyEventCount.text("0");
@@ -927,37 +927,15 @@
function showEntropyFeedback(entropy) {
var numberOfBits = entropy.binaryStr.length;
var strength = "extremely weak";
if (numberOfBits >= 64) {
strength = "very weak";
}
if (numberOfBits >= 96) {
strength = "weak";
}
if (numberOfBits >= 128) {
strength = "strong";
}
if (numberOfBits >= 160) {
strength = "very strong";
}
if (numberOfBits >= 192) {
strength = "extremely strong";
}
// 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 timeToCrack = "unknown";
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;
};
}
timeToCrack = z.crack_times_display.offline_fast_hashing_1e10_per_second;
if (z.feedback.warning != "") {
timeToCrack = timeToCrack + " - " + z.feedback.warning;
};
}
catch (e) {
strength = "unknown";
console.log("Error detecting entropy strength with zxcvbn:");
console.log(e);
}
@@ -966,7 +944,7 @@
var bitsPerEvent = entropy.bitsPerEvent.toFixed(2);
DOM.entropyFiltered.html(entropy.cleanHtml);
DOM.entropyType.text(entropyTypeStr);
DOM.entropyStrength.text(strength);
DOM.entropyCrackTime.text(timeToCrack);
DOM.entropyEventCount.text(entropy.base.ints.length);
DOM.entropyBits.text(numberOfBits);
DOM.entropyWordCount.text(wordCount);