Credentials.fromMnemonic = function(network, words, passphrase, account, derivationStrategy) {
_checkNetwork(network);
$.shouldBeNumber(account);
$.checkArgument(_.contains(_.values(Constants.DERIVATION_STRATEGIES), derivationStrategy));
var m = new Mnemonic(words);
var x = new Credentials();
x.xPrivKey = m.toHDPrivateKey(passphrase, network).toString();
x.mnemonicHasPassphrase = !!passphrase;
x.account = account;
x.derivationStrategy = derivationStrategy;
x._expand();
return x;
};
Credentials.createWithMnemonic = function(network, passphrase, language, account) {
_checkNetwork(network);
if (!wordsForLang[language]) throw new Error('Unsupported language');
$.shouldBeNumber(account);
var m = new Mnemonic(wordsForLang[language]);
while (!Mnemonic.isValid(m.toString())) {
m = new Mnemonic(wordsForLang[language])
};
var x = new Credentials();
x.network = network;
x.account = account;
x.xPrivKey = m.toHDPrivateKey(passphrase, network).toString();
x._expand();
x.mnemonic = m.phrase;
x.mnemonicHasPassphrase = !!passphrase;
return x;
};