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check for negatives and zero in testTarget.

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This commit is contained in:
Christopher Jeffrey 2016-06-10 18:26:18 -07:00
parent aa355feb25
commit f120d4d68a
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GPG Key ID: 8962AB9DE6666BBD
2 changed files with 10 additions and 2 deletions
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2
lib/bcoin/miner.js
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@ -526,7 +526,7 @@ MinerBlock.prototype.findNonce = function findNonce() {
// The heart and soul of the miner: match the target. // The heart and soul of the miner: match the target.
while (block.nonce <= 0xffffffff) { while (block.nonce <= 0xffffffff) {
// Hash and test against the next target // Hash and test against the next target
if (rcmp(utils.dsha256(data), target) < 0) if (rcmp(utils.dsha256(data), target) <= 0)
return true; return true;
// Increment the nonce to get a different hash // Increment the nonce to get a different hash

10
lib/bcoin/utils.js
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@ -1062,7 +1062,15 @@ utils.testTarget = function testTarget(hash, target) {
if (typeof target === 'number') if (typeof target === 'number')
target = utils.fromCompact(target); target = utils.fromCompact(target);
return new bn(hash, 'le').cmp(target) < 0; if (target.isNeg() || target.cmpn(0) === 0)
return false;
hash = new bn(hash, 'le');
if (hash.cmp(target) > 0)
return false;
return true;
}; };
/** /**