+ function writeSplitPhrase(phrase) {
+ var wordCount = phrase.split(/\s/g).length;
+ var left=[];
+ for (var i=0;i<wordCount;i++) left.push(i);
+ var group=[[],[],[]],
+ groupI=-1;
+ var seed = Math.abs(sjcl.hash.sha256.hash(phrase)[0])% 2147483647;
+ while (left.length>0) {
+ groupI=(groupI+1)%3;
+ seed = seed * 16807 % 2147483647;
+ var selected=Math.floor(left.length*(seed - 1) / 2147483646);
+ group[groupI].push(left[selected]);
+ left.splice(selected,1);
+ }
+ var cards=[phrase.split(/\s/g),phrase.split(/\s/g),phrase.split(/\s/g)];
+ for (var i=0;i<3;i++) {
+ for (var ii=0;ii<wordCount/3;ii++) cards[i][group[i][ii]]='XXXX';
+ cards[i]='Card '+(i+1)+': '+wordArrayToPhrase(cards[i]);
+ }
+ DOM.phraseSplit.val(cards.join("\r\n"));
+ var triesPerSecond=10000000000;
+ var hackTime=Math.pow(2,wordCount*10/3)/triesPerSecond;
+ var displayRedText = false;
+ if (hackTime<1) {
+ hackTime="<1 second";
+ displayRedText = true;
+ } else if (hackTime<86400) {
+ hackTime=Math.floor(hackTime)+" seconds";
+ displayRedText = true;
+ } else if(hackTime<31557600) {
+ hackTime=Math.floor(hackTime/86400)+" days";
+ displayRedText = true;
+ } else {
+ hackTime=Math.floor(hackTime/31557600)+" years";
+ }
+ DOM.phraseSplitWarn.html("Time to hack with only one card: "+hackTime);
+ if (displayRedText) {
+ DOM.phraseSplitWarn.addClass("text-danger");
+ } else {
+ DOM.phraseSplitWarn.removeClass("text-danger");
+ }
+ }
+