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Entropy is truncated from the left

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This provides greater compatibility with bip32jp.github.io
This commit is contained in:
Ian Coleman
2016-11-14 13:21:04 +11:00
parent dd94490656
commit d6fd8ebf86
2 changed files with 5 additions and 6 deletions
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3
src/js/index.js
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@@ -764,7 +764,8 @@
}
// Discard trailing entropy
var bitsToUse = Math.floor(bits.length / 32) * 32;
var binaryStr = bits.substring(0, bitsToUse);
var start = bits.length - bitsToUse;
var binaryStr = bits.substring(start);
// Convert entropy string to numeric array
var entropyArr = [];
for (var i=0; i<binaryStr.length / 8; i++) {

8
tests.js
View File

@@ -2696,15 +2696,15 @@ page.open(url, function(status) {
});
},
// Entropy is truncated from the right
// Entropy is truncated from the left
function() {
page.open(url, function(status) {
var expected = "abandon abandon ability";
var expected = "avocado zoo zone";
// use entropy
page.evaluate(function() {
$(".use-entropy").prop("checked", true).trigger("change");
var entropy = "00000000 00000000 00000000 00000000";
entropy += "11111111 11111111 11111111 1111"; // Missing last byte, only first 8 bytes are used
entropy += "11111111 11111111 11111111 1111"; // Missing last byte
$(".entropy").val(entropy).trigger("input");
});
// check the entropy is truncated from the right
@@ -2755,8 +2755,6 @@ page.open(url, function(status) {
// https://bip32jp.github.io/english/index.html
// NOTES:
// Is incompatible with:
// base 6 with leading zeros
// base 6 wth 12 words / 53 chars
// base 20
function() {
page.open(url, function(status) {