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Merge pull request #179 from geertweening/develop

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[FEATURE] make maxLoops in seed.get_key() optional
This commit is contained in:
Geert Weening
2014-10-09 09:32:17 -07:00
parent 011e2cc1e3 23e473b688
commit bb76530e4b
2 changed files with 38 additions and 10 deletions
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18
src/js/ripple/seed.js
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@@ -93,9 +93,14 @@ function SHA256_RIPEMD160(bits) {
*
* {Uint160} (from_json able), specifies the address matching the KeyPair
* that is desired.
*
* @param maxLoops (optional)
* {Number} specifies the amount of attempts taken to generate
* a matching KeyPair
*/
Seed.prototype.get_key = function (account) {
Seed.prototype.get_key = function (account, maxLoops) {
var account_number = 0, address;
var max_loops = maxLoops || 1;
if (!this.is_valid()) {
throw new Error('Cannot generate keys from invalid seed!');
@@ -103,6 +108,7 @@ Seed.prototype.get_key = function (account) {
if (account) {
if (typeof account === 'number') {
account_number = account;
max_loops = account_number+1;
} else {
address = UInt160.from_json(account);
}
@@ -121,9 +127,9 @@ Seed.prototype.get_key = function (account) {
var sec;
var key_pair;
var max_loops = 1000; // TODO
do {
i = 0;
do {
@@ -135,15 +141,15 @@ Seed.prototype.get_key = function (account) {
sec = sec.add(private_gen).mod(curve.r);
key_pair = KeyPair.from_bn_secret(sec);
if (--max_loops <= 0) {
if (max_loops-- <= 0) {
// We are almost certainly looking for an account that would take same
// value of $too_long {forever, ...}
throw new Error('Too many loops looking for KeyPair yielding '+
address.to_json() +' from ' + this.to_json());
};
} while (address && !key_pair.get_address().equals(address));
}
return key_pair;
} while (address && !key_pair.get_address().equals(address));
return key_pair;
};
exports.Seed = Seed;