<option value="21">21 <span>Words</span></option>
<option value="24">24 <span>Words</span></option>
</select>
+ <p class="weak-entropy-override-warning hidden">
+ <span class="text-danger">
+ The mnemonic will appear more secure than it really is.
+ </span>
+ </p>
</div>
</div>
<div class="col-sm-3">
DOM.entropyWordIndexes = DOM.entropyContainer.find(".word-indexes");
DOM.entropyChecksum = DOM.entropyContainer.find(".checksum");
DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
+ DOM.entropyWeakEntropyOverrideWarning = DOM.entropyContainer.find(".weak-entropy-override-warning");
DOM.entropyFilterWarning = DOM.entropyContainer.find(".filter-warning");
DOM.phrase = $(".phrase");
DOM.passphrase = $(".passphrase");
mnemonicLength = parseInt(mnemonicLength);
var numberOfBits = 32 * mnemonicLength / 3;
bits = bits.substring(0, numberOfBits);
+ // show warning for weak entropy override
+ if (mnemonicLength / 3 * 32 > entropy.binaryStr.length) {
+ DOM.entropyWeakEntropyOverrideWarning.removeClass("hidden");
+ }
+ else {
+ DOM.entropyWeakEntropyOverrideWarning.addClass("hidden");
+ }
+ }
+ else {
+ // hide warning for weak entropy override
+ DOM.entropyWeakEntropyOverrideWarning.addClass("hidden");
}
// Discard trailing entropy
var bitsToUse = Math.floor(bits.length / 32) * 32;
});
});
+it('Shows a warning if overriding weak entropy with longer mnemonics', function(done) {
+ driver.findElement(By.css('.use-entropy'))
+ .click();
+ driver.findElement(By.css('.entropy'))
+ .sendKeys("0123456789abcdef"); // 6 words
+ driver.executeScript(function() {
+ $(".mnemonic-length").val("12").trigger("change");
+ });
+ driver.findElement(By.css(".weak-entropy-override-warning"))
+ .getAttribute("class")
+ .then(function(classes) {
+ expect(classes).not.toContain("hidden");
+ done();
+ });
+});
+
+it('Does not show a warning if entropy is stronger than mnemonic length', function(done) {
+ driver.findElement(By.css('.use-entropy'))
+ .click();
+ driver.findElement(By.css('.entropy'))
+ .sendKeys("0123456789abcdef0123456789abcdef0123456789abcdef"); // 18 words
+ driver.executeScript(function() {
+ $(".mnemonic-length").val("12").trigger("change");
+ });
+ driver.findElement(By.css(".weak-entropy-override-warning"))
+ .getAttribute("class")
+ .then(function(classes) {
+ expect(classes).toContain("hidden");
+ done();
+ });
+});
+
});