�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` (function() { var base64map = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/', crypt = { // Bit-wise rotation left rotl: function(n, b) { return (n << b) | (n >>> (32 - b)); }, // Bit-wise rotation right rotr: function(n, b) { return (n << (32 - b)) | (n >>> b); }, // Swap big-endian to little-endian and vice versa endian: function(n) { // If number given, swap endian if (n.constructor == Number) { return crypt.rotl(n, 8) & 0x00FF00FF | crypt.rotl(n, 24) & 0xFF00FF00; } // Else, assume array and swap all items for (var i = 0; i < n.length; i++) n[i] = crypt.endian(n[i]); return n; }, // Generate an array of any length of random bytes randomBytes: function(n) { for (var bytes = []; n > 0; n--) bytes.push(Math.floor(Math.random() * 256)); return bytes; }, // Convert a byte array to big-endian 32-bit words bytesToWords: function(bytes) { for (var words = [], i = 0, b = 0; i < bytes.length; i++, b += 8) words[b >>> 5] |= bytes[i] << (24 - b % 32); return words; }, // Convert big-endian 32-bit words to a byte array wordsToBytes: function(words) { for (var bytes = [], b = 0; b < words.length * 32; b += 8) bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF); return bytes; }, // Convert a byte array to a hex string bytesToHex: function(bytes) { for (var hex = [], i = 0; i < bytes.length; i++) { hex.push((bytes[i] >>> 4).toString(16)); hex.push((bytes[i] & 0xF).toString(16)); } return hex.join(''); }, // Convert a hex string to a byte array hexToBytes: function(hex) { for (var bytes = [], c = 0; c < hex.length; c += 2) bytes.push(parseInt(hex.substr(c, 2), 16)); return bytes; }, // Convert a byte array to a base-64 string bytesToBase64: function(bytes) { for (var base64 = [], i = 0; i < bytes.length; i += 3) { var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2]; for (var j = 0; j < 4; j++) if (i * 8 + j * 6 <= bytes.length * 8) base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F)); else base64.push('='); } return base64.join(''); }, // Convert a base-64 string to a byte array base64ToBytes: function(base64) { // Remove non-base-64 characters base64 = base64.replace(/[^A-Z0-9+\/]/ig, ''); for (var bytes = [], i = 0, imod4 = 0; i < base64.length; imod4 = ++i % 4) { if (imod4 == 0) continue; bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & (Math.pow(2, -2 * imod4 + 8) - 1)) << (imod4 * 2)) | (base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2))); } return bytes; } }; module.exports = crypt; })();