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improve tx verification.

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This commit is contained in:
Christopher Jeffrey 2016-01-14 01:16:39 -08:00
parent ef59dae1b5
commit 6154b1f7a1
1 changed files with 12 additions and 5 deletions
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17
lib/bcoin/tx.js
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@ -689,13 +689,20 @@ TX.prototype.verify = function verify(index, force, flags) {
if (!input.out.tx)
return false;
output = input.out.tx.outputs[input.out.index];
assert(input.out.tx.outputs.length > input.out.index);
// Somethis is very wrong if this is
// not the case.
assert.equal(input.out.tx.hash('hex'), input.out.hash);
// Transaction cannot reference itself
if (input.out.tx.hash('hex') === this.hash('hex'))
// Grab the previous output.
output = input.out.tx.outputs[input.out.index];
// Transaction is referencing an output
// that does not exist.
if (!output)
return false;
// Transaction cannot reference itself.
if (input.out.hash === this.hash('hex'))
return false;
return bcoin.script.verify(input.script, output.script, this, i, flags);