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import-export.js
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import-export.js
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function _ImportExport() {
this.init = function(container, success, error) {
MyWallet.setLoadingText('Loading Import Export View');
if (!container.is(':empty')) {
bind();
success();
return;
}
$.ajax({
type: "GET",
url: root + 'wallet/import-export-template',
data : {format : 'plain', language : MyWallet.getLanguage()},
success: function(html) {
try {
container.html(html);
bind();
success();
} catch (e) {
console.log(e);
error();
}
},
error : function() {
MyWallet.makeNotice('error', 'misc-error', 'Error Downloading Import Export Template');
error();
}
});
}
function showWatchOnlyWarning(address, success) {
var modal = $('#watch-only-modal');
modal.modal({
keyboard: true,
backdrop: "static",
show: true
});
modal.center();
modal.find('.address').text(address);
modal.find('.btn.btn-secondary').unbind().click(function() {
modal.modal('hide');
});
modal.find('.btn.btn-primary').unbind().click(function() {
success();
modal.modal('hide');
});
}
function showPrivateKeyWarningModal(address, import_direct, sweep) {
var modal = $('#import-private-key-warning-modal');
modal.modal({
keyboard: true,
backdrop: "static",
show: true
});
modal.center();
modal.find('.address').text(address);
BlockchainAPI.get_balance([address], function(balance) {
modal.find('.address').text(address + " - " + formatBTC(balance));
}, function(e) {
MyWallet.makeNotice('error', 'misc-error', e);
});
modal.find('.btn.btn-secondary').unbind().click(function() {
import_direct();
modal.modal('hide');
});
modal.find('.btn.btn-primary').unbind().click(function() {
sweep();
modal.modal('hide');
});
}
function bind() {
$('a[data-toggle="tab"]').unbind().on('show', function(e) {
$(e.target.hash).trigger('show');
});
$("#import-json-btn").unbind().click(function() {
$(this).prop("disabled", true);
importTextArea($('#import-json'));
$(this).prop("disabled", false);
});
$('#import-address-btn').unbind().click(function() {
var value = $.trim($('#import-address-address').val());
if (value.length = 0) {
MyWallet.makeNotice('error', 'misc-error', 'You must enter an address to import');
return;
}
try {
var address = new Bitcoin.Address(value);
if (address.toString() != value) {
throw 'Inconsistency between addresses';
}
$('#import-address-address').val('');
showWatchOnlyWarning(value, function() {
try {
if (MyWallet.addWatchOnlyAddress(value)) {
MyWallet.makeNotice('success', 'added-address', 'Successfully Added Address ' + address);
try {
ws.send('{"op":"addr_sub", "addr":"'+address+'"}');
} catch (e) { }
//Backup
MyWallet.backupWallet('update', function() {
MyWallet.get_history();
});
} else {
throw 'Wallet Full Or Addresses Exists'
}
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', e);
}
});
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', 'Error importing address: ' + e);
return;
}
});
$('#import-private-scan').unbind().click(function() {
MyWallet.getSecondPassword(function() {
loadScript('wallet/signer', function() {
showPrivateKeyModal(function (key) {
if (MyWallet.addPrivateKey(key, {compressed : false, app_name : IMPORTED_APP_NAME, app_version : IMPORTED_APP_VERSION})) {
//Perform a wallet backup
MyWallet.backupWallet('update', function() {
MyWallet.get_history();
});
MyWallet.makeNotice('success', 'added-address', 'Imported Bitcoin Address ' + key.getBitcoinAddress());
} else {
throw 'Unable to add private key for bitcoin address ' + key.getBitcoinAddress();
}
}, function(e) {
MyWallet.makeNotice('error', 'misc-error', e);
}, 'Any Private Key');
});
});
});
$('#import-private-btn').unbind().click(function() {
var input = $('#import-private-key');
try {
importPrivateKeyUI($.trim(input.val()));
} catch(e) {
MyWallet.makeNotice('error', 'misc-error', 'Error importing private key: ' + e);
}
input.val('');
});
$('#import-brain-wallet-btn').unbind().click(function() {
var input = $('#import-brain-wallet');
var phrase = $.trim(input.val());
// enforce a minimum passphrase length
if (phrase.length < 15) {
MyWallet.makeNotice('error', 'misc-error', 'The passphrase must be at least 15 characters long');
return;
}
var bytes = Crypto.SHA256(phrase, { asBytes: true });
try {
importPrivateKeyUI(Bitcoin.Base58.encode(bytes), 'Brain Wallet', 'brain_wallet');
} catch(e) {
MyWallet.makeNotice('error', 'misc-error', 'Error importing private key: ' + e);
}
input.val('');
});
$('#export-priv-format').change(function (e) {
$("#json-unencrypted-export").val(MyWallet.makeWalletJSON($('#export-priv-format').val()));
});
$('#export-crypted').on('show', function() {
$("#json-crypted-export").val(MyWallet.getEncryptedWalletData());
});
$('#export-unencrypted').on('show', function() {
MyWallet.getSecondPassword(function() {
$('#export-priv-format').val('base58');
$("#json-unencrypted-export").val(MyWallet.makeWalletJSON($('#export-priv-format').val()));
});
});
$('#import-backup').on('show', function() {
var self = this;
loadBackupsList($(self));
});
$('.paper-wallet-btn').unbind().click(function() {
loadScript('wallet/paper-wallet', function() {
PaperWallet.showModal();
});
});
}
this.importJSON = function(input_text, opt, success, error) {
try {
var nKeysFound = 0;
if (input_text == null || input_text.length == 0) {
throw 'No import data provided!';
}
var obj = null;
try {
//First try a simple decode
obj = $.parseJSON(input_text);
if (obj == null)
throw 'null input_text';
if (obj.payload)
throw 'version 2 wallet';
} catch(e) {
//Maybe it's encrypted?
MyWallet.decryptWallet(input_text, opt.main_password, function(obj, root) {
ImportExport.importJSON(JSON.stringify(obj), opt, success, error);
}, error);
return;
}
var key_n = 0;
var really_import = function() {
try {
//Parse the wallet backup
var json_key = obj.keys[key_n];
var addr = json_key.addr;
if (addr != null && addr.length > 0 && addr != 'undefined') {
try {
var priv = json_key.priv;
if (!priv)
priv = json_key.sec;
//If there is a private key we first need to decrypt it, detect the format then re-insert
if (priv != null) {
var tmp_pbkdf2_iterations = MyWallet.getDefaultPbkdf2Iterations();
if (obj.options && obj.options.pbkdf2_iterations)
tmp_pbkdf2_iterations = obj.options.pbkdf2_iterations;
//If the wallet is double encrypted we need to decrypt the key first
if (obj.double_encryption) {
if (opt.second_password) {
var decrypted = MyWallet.decrypt(priv, obj.sharedKey + opt.second_password, tmp_pbkdf2_iterations, MyWallet.isBase58);
if (decrypted == null)
throw 'Error decrypting private key for address ' + addr;
priv = decrypted;
} else {
MyWallet.getPassword($('#import-second-password-modal'), function(__password) {
opt.second_password = __password;
ImportExport.importJSON(input_text, opt, success, error)
});
return;
}
}
var format = MyWallet.detectPrivateKeyFormat(priv);
var key = MyWallet.privateKeyStringToKey(priv, format);
if (key.getBitcoinAddress().toString() == addr || key.getBitcoinAddressCompressed().toString() == addr) {
try {
MyWallet.addPrivateKey(key,{
compressed : format == 'compsipa',
app_name : obj.created_device_name ? obj.created_device_name : IMPORTED_APP_NAME,
app_version : obj.created_device_version ? obj.created_device_version : IMPORTED_APP_VERSION,
created_time : obj.created_time ? obj.created_time : 0
});
} catch (e) {}
++nKeysFound;
} else {
throw 'Not importing ' + addr + ' because it is inconsistent with the decoded address ';
}
}
//Copy over the tag and label
if (MyWallet.addressExists(addr)) {
if (json_key.label && $.trim(json_key.label.length) > 0)
MyWallet.setAddressLabel(addr, $.trim(json_key.label));
if (json_key.tag)
MyWallet.setAddressTag(addr, json_key.tag);
else if (json_key.reserve)
MyWallet.setAddressTag(addr, 2); //Mark as archived
else
MyWallet.setAddressTag(addr, 1); //Mark as unsynced
}
} catch (e) {
console.log(e);
}
}
if (key_n < obj.keys.length-1) {
++key_n;
setTimeout(really_import, 10);
return;
}
if (obj.address_book != null) {
for (var i2 = 0; i2 < obj.address_book.length; ++i2) {
var addressbook_obj = obj.address_book[i2];
if (addressbook_obj.addr && addressbook_obj.label)
MyWallet.addAddressBookEntry(addressbook_obj.addr, addressbook_obj.label);
}
}
//Clear the old value
$('#import-input_text').val('');
if (nKeysFound > 0)
success();
else
throw 'No Private Keys Imported. Unknown Format Incorrect Password';
} catch (e) {
console.log(e);
try {
error(e);
} catch (e) {}
}
}
if (obj == null) {
nKeysFound = parsePrivateKeysFromText(input_text);
//Clear the old value
$('#import-input_text').val('');
if (nKeysFound > 0)
success();
else
throw 'No Private Keys Imported. Unknown Format or Incorrect Password';
} else if (obj != null && obj.keys != null && obj.keys.length > 0) {
if (obj.keys.length > 1000) {
MyWallet.makeNotice('info', 'keys-skipped', 'Some keys may have been skipped');
var ii = 0;
var test_balances=[];
var do_part = function() {
try {
for (; ii < obj.keys.length; ++ii) {
var json_key = obj.keys[ii];
var addr = json_key.addr;
if (addr == null || addr.length == 0 || addr == 'undefined')
continue;
if (json_key.reserve || json_key.tag == 2)
test_balances.push(json_key.addr);
if (test_balances.length == 1000 || (ii == obj.keys.length-1 && test_balances.length > 0)) {
BlockchainAPI.get_balances(test_balances, function(response) {
try {
for (var key in response) {
if (response[key].final_balance == 0) {
for (var iii = 0; iii < obj.keys.length; ++iii) {
var _addr = obj.keys[iii].addr;
if (_addr == key) {
if (obj.keys.length > 1)
obj.keys.splice(iii, 1);
--ii;
}
}
}
}
setTimeout(do_part, 10);
} catch (e) {
console.log(e);
try {
error(e);
} catch (e) {}
}
}, function(e) {
console.log(e);
try {
error(e);
} catch (e) {}
});
test_balances = [];
return;
}
}
} catch (e) {
console.log(e);
try {
error(e);
} catch (e) {}
}
really_import();
};
do_part();
} else {
really_import();
}
} else {
throw 'Unknown Format'
}
} catch (e) {
console.log(e);
try {
error(e);
} catch (e) {}
}
}
function parsePrivateKeysFromText(input_text) {
var components = input_text.split(/\W+/g);
try {
var nKeysFound = 0;
for (var i in components) {
var word = components[i];
try {
var format = MyWallet.detectPrivateKeyFormat(word);
var key = MyWallet.privateKeyStringToKey(word, format);
var compressed = format == 'compsipa';
try {
MyWallet.addPrivateKey(key, {compressed : compressed, app_name : IMPORTED_APP_NAME, app_version : IMPORTED_APP_VERSION});
} catch (e) {}
++nKeysFound;
} catch (e) { }
}
return nKeysFound;
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', e);
}
return false;
}
function importTextArea(area) {
MyWallet.getMainPassword(function(main_password) {
MyWallet.getSecondPassword(function(second_password) {
ImportExport.importJSON(area.val(), {main_password : main_password, second_password : second_password},
function() {
//Perform a wallet backup
MyWallet.backupWallet('update', function() {
MyWallet.get_history();
});
}, function(e) {
MyWallet.makeNotice('error', 'misc-error', e);
});
});
});
}
function showCompressedPrivateKeyWarning(success, error) {
var modal = $('#compressed-private-key-modal');
modal.modal({
keyboard: true,
backdrop: "static",
show: true
});
modal.center();
modal.find('.btn.btn-secondary').unbind().click(function() {
success();
modal.modal('hide');
});
modal.find('.btn.btn-primary').unbind().click(function() {
error();
modal.modal('hide');
});
}
function importS3WalletBackup(id) {
MyWallet.setLoadingText('Importing Backup');
MyWallet.securePost('wallet', {method: 'get-backup', id : id, format : 'json'}, function(obj) {
try {
var payload = obj.payload;
MyWallet.getMainPassword(function(main_password) {
MyWallet.getSecondPassword(function(second_password) {
ImportExport.importJSON(payload, {main_password : main_password, second_password : second_password}, function() {
//Perform a wallet backup
MyWallet.backupWallet('update', function() {
MyWallet.get_history();
});
}, function(e) {
MyWallet.makeNotice('error', 'misc-error', e);
});
});
});
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', e);
}
}, function(data) {
MyWallet.makeNotice('error', 'misc-error', data.responseText);
});
}
function loadBackupsList(el) {
MyWallet.setLoadingText('Loading Backup List');
MyWallet.securePost('wallet', {method : 'list-backups', format : 'json'}, function(obj) {
try {
if (obj == null) {
throw 'Failed to get backups';
}
var tbody = el.find('table tbody').empty();
var results = obj.results;
if (results.length == 0) {
throw 'No backups found';
}
for (var i in results) {
var result = results[i];
var tr = $('<tr><td>'+result.name+'</td><td>'+dateToString(new Date(result.last_modified))+'</td><td>'+result.size+'</td><td><a class="act-import">Import</a></td></tr>');
(function(result) {
tr.find('.act-import').click(function() {
importS3WalletBackup(result.id);
});
})(result);
tbody.append(tr);
}
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', e);
}
}, function(data) {
MyWallet.makeNotice('error', 'misc-error', data.responseText);
});
}
function importPrivateKeyUI(value, label, success, app_name) {
MyWallet.getSecondPassword(function() {
try {
if (!value || value.length == 0) {
throw 'You must enter a private key to import';
}
function reallyInsertKey(key, compressed) {
try {
if (MyWallet.addPrivateKey(key, {compressed : compressed, app_name : app_name ? app_name : IMPORTED_APP_NAME, app_version : IMPORTED_APP_VERSION})) {
var addr = compressed ? key.getBitcoinAddressCompressed().toString() : key.getBitcoinAddress().toString();
if (label && label.length > 0)
MyWallet.setAddressLabel(addr, label);
//Perform a wallet backup
MyWallet.backupWallet('update', function() {
MyWallet.get_history();
});
if (success) success();
MyWallet.makeNotice('success', 'added', 'Added Bitcoin Address ' + addr);
} else {
throw 'Unable to add private key for bitcoin address ' + addr;
}
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', e);
}
}
var format = MyWallet.detectPrivateKeyFormat(value);
if (format == 'bip38') {
MyWallet.getPassword($('#import-private-key-password'), function(_password) {
ImportExport.parseBIP38toECKey(value, _password, function(key, isCompPoint) {
//success
reallyInsertKey(key, isCompPoint);
}, function(e) {
//error
MyWallet.makeNotice('error', 'misc-error', e);
});
});
return;
}
var key = MyWallet.privateKeyStringToKey(value, format);
var addr = null;
if (format == 'compsipa') {
addr = key.getBitcoinAddressCompressed().toString();
} else {
addr = key.getBitcoinAddress().toString();
}
if (addr == null || addr.length == 0 || addr == 'undefined')
throw 'Unable to decode bitcoin addresses from private key';
if (MyWallet.addressExists(addr) && !MyWallet.isWatchOnly(addr))
throw 'Address already exists in the wallet';
function sweep() {
loadScript('wallet/signer', function() {
BlockchainAPI.get_balance([addr], function(value) {
var obj = initNewTx();
obj.fee = obj.base_fee; //Always include a fee
obj.to_addresses.push({address: new Bitcoin.Address(MyWallet.getPreferredAddress()), value : BigInteger.valueOf(value).subtract(obj.fee)});
obj.from_addresses = [addr];
obj.extra_private_keys[addr] = B58.encode(key.priv);
obj.start();
}, function() {
MyWallet.makeNotice('error', 'misc-error', 'Error Getting Address Balance');
});
});
};
showPrivateKeyWarningModal(addr, function() {
if (format == 'compsipa') {
showCompressedPrivateKeyWarning(function() {
reallyInsertKey(key, true);
}, function() {
sweep();
});
} else {
reallyInsertKey(key, false);
}
}, function() {
//Sweep
sweep();
});
} catch (e) {
MyWallet.makeNotice('error', 'misc-error', 'Error importing private key: ' + e);
}
});
}
this.parseBIP38toECKey = function(base58Encrypted, passphrase, success, error) {
var hex;
try {
hex = Bitcoin.Base58.decode(base58Encrypted);
} catch (e) {
error('Invalid Private Key');
return;
}
if (hex.length != 43) {
error('Invalid Private Key');
return;
} else if (hex[0] != 0x01) {
error('Invalid Private Key');
return;
}
var expChecksum = hex.slice(-4);
hex = hex.slice(0, -4);
var checksum = Crypto.SHA256(Crypto.SHA256(hex, { asBytes: true }), { asBytes: true });
if (checksum[0] != expChecksum[0] || checksum[1] != expChecksum[1] || checksum[2] != expChecksum[2] || checksum[3] != expChecksum[3]) {
error('Invalid Private Key');
return;
}
var isCompPoint = false;
var isECMult = false;
var hasLotSeq = false;
if (hex[1] == 0x42) {
if (hex[2] == 0xe0) {
isCompPoint = true;
} else if (hex[2] != 0xc0) {
error('Invalid Private Key');
return;
}
} else if (hex[1] == 0x43) {
isECMult = true;
isCompPoint = (hex[2] & 0x20) != 0;
hasLotSeq = (hex[2] & 0x04) != 0;
if ((hex[2] & 0x24) != hex[2]) {
error('Invalid Private Key');
return;
}
} else {
error('Invalid Private Key');
return;
}
var decrypted;
var AES_opts = {mode: new Crypto.mode.ECB(Crypto.pad.NoPadding), asBytes: true};
var verifyHashAndReturn = function() {
var tmpkey = new Bitcoin.ECKey(decrypted);
var base58AddrText = isCompPoint ? tmpkey.getBitcoinAddressCompressed() : tmpkey.getBitcoinAddress();
checksum = Crypto.SHA256(Crypto.SHA256(base58AddrText.toString(), { asBytes: true }), { asBytes: true });
if (checksum[0] != hex[3] || checksum[1] != hex[4] || checksum[2] != hex[5] || checksum[3] != hex[6]) {
error('Incorrect Passphrase');
return;
}
success(tmpkey, isCompPoint);
};
if (!isECMult) {
var addresshash = hex.slice(3, 7);
ImportExport.Crypto_scrypt(passphrase, addresshash, 16384, 8, 8, 64, function(derivedBytes) {
var k = derivedBytes.slice(32, 32+32);
decrypted = Crypto.AES.decrypt(hex.slice(7, 7+32), k, AES_opts);
for (var x = 0; x < 32; x++) decrypted[x] ^= derivedBytes[x];
verifyHashAndReturn();
});
} else {
var ownerentropy = hex.slice(7, 7+8);
var ownersalt = !hasLotSeq ? ownerentropy : ownerentropy.slice(0, 4);
ImportExport.Crypto_scrypt(passphrase, ownersalt, 16384, 8, 8, 32, function(prefactorA) {
var passfactor;
if (!hasLotSeq) {
passfactor = prefactorA;
} else {
var prefactorB = prefactorA.concat(ownerentropy);
passfactor = Crypto.SHA256(Crypto.SHA256(prefactorB, { asBytes: true }), { asBytes: true });
}
var kp = new Bitcoin.ECKey(passfactor);
var passpoint = kp.getPubCompressed();
var encryptedpart2 = hex.slice(23, 23+16);
var addresshashplusownerentropy = hex.slice(3, 3+12);
ImportExport.Crypto_scrypt(passpoint, addresshashplusownerentropy, 1024, 1, 1, 64, function(derived) {
var k = derived.slice(32);
var unencryptedpart2 = Crypto.AES.decrypt(encryptedpart2, k, AES_opts);
for (var i = 0; i < 16; i++) { unencryptedpart2[i] ^= derived[i+16]; }
var encryptedpart1 = hex.slice(15, 15+8).concat(unencryptedpart2.slice(0, 0+8));
var unencryptedpart1 = Crypto.AES.decrypt(encryptedpart1, k, AES_opts);
for (var i = 0; i < 16; i++) { unencryptedpart1[i] ^= derived[i]; }
var seedb = unencryptedpart1.slice(0, 0+16).concat(unencryptedpart2.slice(8, 8+8));
var factorb = Crypto.SHA256(Crypto.SHA256(seedb, { asBytes: true }), { asBytes: true });
var ps = secp256k1();
var privateKey = BigInteger.fromByteArrayUnsigned(passfactor).multiply(BigInteger.fromByteArrayUnsigned(factorb)).remainder(ps.getN());
decrypted = privateKey.toByteArrayUnsigned();
verifyHashAndReturn();
});
});
}
}
var MAX_VALUE = 2147483647;
var workerUrl = null;
this.Crypto_scrypt = function(passwd, salt, N, r, p, dkLen, callback) {
if (N == 0 || (N & (N - 1)) != 0) throw Error("N must be > 0 and a power of 2");
if (N > MAX_VALUE / 128 / r) throw Error("Parameter N is too large");
if (r > MAX_VALUE / 128 / p) throw Error("Parameter r is too large");
var PBKDF2_opts = {iterations: 1, hasher: Crypto.SHA256, asBytes: true};
var B = Crypto.PBKDF2(passwd, salt, p * 128 * r, PBKDF2_opts);
try {
var i = 0;
var worksDone = 0;
var makeWorker = function() {
if (!workerUrl) {
var code = '('+scryptCore.toString()+')()';
var blob;
try {
blob = new Blob([code], {type: "text/javascript"});
} catch(e) {
window.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
blob = new BlobBuilder();
blob.append(code);
blob = blob.getBlob("text/javascript");
}
workerUrl = URL.createObjectURL(blob);
}
var worker = new Worker(workerUrl);
worker.onmessage = function(event) {
var Bi = event.data[0], Bslice = event.data[1];
worksDone++;
if (i < p) {
worker.postMessage([N, r, p, B, i++]);
}
var length = Bslice.length, destPos = Bi * 128 * r, srcPos = 0;
while (length--) {
B[destPos++] = Bslice[srcPos++];
}
if (worksDone == p) {
callback(Crypto.PBKDF2(passwd, B, dkLen, PBKDF2_opts));
}
};
return worker;
};
var workers = [makeWorker(), makeWorker()];
workers[0].postMessage([N, r, p, B, i++]);
if (p > 1) {
workers[1].postMessage([N, r, p, B, i++]);
}
} catch (e) {
window.setTimeout(function() {
scryptCore();
callback(Crypto.PBKDF2(passwd, B, dkLen, PBKDF2_opts));
}, 0);
}
// using this function to enclose everything needed to create a worker (but also invokable directly for synchronous use)
function scryptCore() {
var XY = [], V = [];
if (typeof B === 'undefined') {
onmessage = function(event) {
var data = event.data;
var N = data[0], r = data[1], p = data[2], B = data[3], i = data[4];
var Bslice = [];
arraycopy32(B, i * 128 * r, Bslice, 0, 128 * r);
smix(Bslice, 0, r, N, V, XY);
postMessage([i, Bslice]);
};
} else {
for(var i = 0; i < p; i++) {
smix(B, i * 128 * r, r, N, V, XY);
}
}
function smix(B, Bi, r, N, V, XY) {
var Xi = 0;
var Yi = 128 * r;
var i;
arraycopy32(B, Bi, XY, Xi, Yi);
for (i = 0; i < N; i++) {
arraycopy32(XY, Xi, V, i * Yi, Yi);
blockmix_salsa8(XY, Xi, Yi, r);
}
for (i = 0; i < N; i++) {
var j = integerify(XY, Xi, r) & (N - 1);
blockxor(V, j * Yi, XY, Xi, Yi);
blockmix_salsa8(XY, Xi, Yi, r);
}
arraycopy32(XY, Xi, B, Bi, Yi);
}
function blockmix_salsa8(BY, Bi, Yi, r) {
var X = [];
var i;
arraycopy32(BY, Bi + (2 * r - 1) * 64, X, 0, 64);
for (i = 0; i < 2 * r; i++) {
blockxor(BY, i * 64, X, 0, 64);
salsa20_8(X);
arraycopy32(X, 0, BY, Yi + (i * 64), 64);
}
for (i = 0; i < r; i++) {
arraycopy32(BY, Yi + (i * 2) * 64, BY, Bi + (i * 64), 64);
}
for (i = 0; i < r; i++) {
arraycopy32(BY, Yi + (i * 2 + 1) * 64, BY, Bi + (i + r) * 64, 64);
}
}
function R(a, b) {
return (a << b) | (a >>> (32 - b));
}
function salsa20_8(B) {
var B32 = new Array(32);
var x = new Array(32);
var i;
for (i = 0; i < 16; i++) {
B32[i] = (B[i * 4 + 0] & 0xff) << 0;
B32[i] |= (B[i * 4 + 1] & 0xff) << 8;
B32[i] |= (B[i * 4 + 2] & 0xff) << 16;
B32[i] |= (B[i * 4 + 3] & 0xff) << 24;
}
arraycopy(B32, 0, x, 0, 16);
for (i = 8; i > 0; i -= 2) {
x[ 4] ^= R(x[ 0]+x[12], 7); x[ 8] ^= R(x[ 4]+x[ 0], 9);
x[12] ^= R(x[ 8]+x[ 4],13); x[ 0] ^= R(x[12]+x[ 8],18);
x[ 9] ^= R(x[ 5]+x[ 1], 7); x[13] ^= R(x[ 9]+x[ 5], 9);
x[ 1] ^= R(x[13]+x[ 9],13); x[ 5] ^= R(x[ 1]+x[13],18);
x[14] ^= R(x[10]+x[ 6], 7); x[ 2] ^= R(x[14]+x[10], 9);
x[ 6] ^= R(x[ 2]+x[14],13); x[10] ^= R(x[ 6]+x[ 2],18);
x[ 3] ^= R(x[15]+x[11], 7); x[ 7] ^= R(x[ 3]+x[15], 9);
x[11] ^= R(x[ 7]+x[ 3],13); x[15] ^= R(x[11]+x[ 7],18);
x[ 1] ^= R(x[ 0]+x[ 3], 7); x[ 2] ^= R(x[ 1]+x[ 0], 9);
x[ 3] ^= R(x[ 2]+x[ 1],13); x[ 0] ^= R(x[ 3]+x[ 2],18);
x[ 6] ^= R(x[ 5]+x[ 4], 7); x[ 7] ^= R(x[ 6]+x[ 5], 9);
x[ 4] ^= R(x[ 7]+x[ 6],13); x[ 5] ^= R(x[ 4]+x[ 7],18);
x[11] ^= R(x[10]+x[ 9], 7); x[ 8] ^= R(x[11]+x[10], 9);
x[ 9] ^= R(x[ 8]+x[11],13); x[10] ^= R(x[ 9]+x[ 8],18);
x[12] ^= R(x[15]+x[14], 7); x[13] ^= R(x[12]+x[15], 9);
x[14] ^= R(x[13]+x[12],13); x[15] ^= R(x[14]+x[13],18);
}
for (i = 0; i < 16; ++i) B32[i] = x[i] + B32[i];
for (i = 0; i < 16; i++) {
var bi = i * 4;
B[bi + 0] = (B32[i] >> 0 & 0xff);
B[bi + 1] = (B32[i] >> 8 & 0xff);
B[bi + 2] = (B32[i] >> 16 & 0xff);
B[bi + 3] = (B32[i] >> 24 & 0xff);
}
}
function blockxor(S, Si, D, Di, len) {
var i = len>>6;
while (i--) {
D[Di++] ^= S[Si++]; D[Di++] ^= S[Si++];
D[Di++] ^= S[Si++]; D[Di++] ^= S[Si++];
D[Di++] ^= S[Si++]; D[Di++] ^= S[Si++];
D[Di++] ^= S[Si++]; D[Di++] ^= S[Si++];
D[Di++] ^= S[Si++]; D[Di++] ^= S[Si++];