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109 lines
4.2 KiB
109 lines
4.2 KiB
// Copyright (c) 2014-2015, MyMonero.com
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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thinwalletCtrls.controller('VanityAddressCtrl', function ($scope) {
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"use strict";
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$scope.running = false;
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$scope.num_searched = 0;
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function score(address, prefix) {
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address = address.toUpperCase();
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for (var i = 0; i < prefix.length; ++i) {
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if (address[i] !== prefix[i] && prefix[i] !== '*') return i;
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}
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return prefix.length;
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}
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function startGeneration(prefix) {
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$scope.found = {};
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$scope.num_searched = 0;
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var num_searched = 0;
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var seed = cnUtil.rand_16();
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var bestMatch = 0;
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var last_generated = 0;
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prefix = prefix.toUpperCase();
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function generateAddress() {
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for (var i = 0; i < 10; ++i) {
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if (!$scope.running) return;
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var address = cnUtil.create_addr_prefix(seed);
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++num_searched;
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var sc = score(address, prefix);
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if (sc === prefix.length) {
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$scope.found = {
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mnemonic: mn_encode(seed),
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address: cnUtil.create_address(seed).public_addr
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};
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$scope.num_searched = num_searched;
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$scope.running = false;
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break;
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} else {
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if (sc >= bestMatch) {
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bestMatch = sc;
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$scope.found = {
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mnemonic: mn_encode(seed),
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address: cnUtil.create_address(seed).public_addr
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};
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}
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}
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var lastByte;
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lastByte = parseInt(seed.slice(30, 32), 16);
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if (lastByte < 0xff) {
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seed = seed.slice(0, 30) + ('0' + (lastByte + 1).toString(16)).slice(-2);
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} else {
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seed = cnUtil.keccak(seed, 16, 32).slice(0, 30) + '00';
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}
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}
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if (num_searched - last_generated > 10000) {
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seed = cnUtil.rand_16();
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last_generated = num_searched;
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}
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$scope.num_searched = num_searched;
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$scope.$apply();
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setTimeout(generateAddress, 0);
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}
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setTimeout(generateAddress, 0);
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}
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$scope.$on('$destroy', function () {
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$scope.running = false;
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});
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$scope.toggleGeneration = function () {
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$scope.running = !$scope.running;
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if ($scope.running) {
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if (!$scope.prefix || $scope.prefix[0] !== '4') {
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$scope.running = false;
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return;
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}
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startGeneration($scope.prefix);
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}
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};
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});
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