create option to skip S Value check

ethereumjs · Jan 6, 2016 · d78f974 · d78f974
1 parent 70db234
commit d78f974
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/index.js b/index.js
@@ -145,7 +145,7 @@ Transaction.prototype.verifySignature = function () {
   var msgHash = this.hash(false)
 
   // All transaction signatures whose s-value is greater than secp256k1n/2 are considered invalid.
-  if (new BN(this.s).cmp(N_DIV_2) === 1) {
+  if (!this._skipSValueCheck && new BN(this.s).cmp(N_DIV_2) === 1) {
     return false
   }
 

diff --git a/test/transactionRunner.js b/test/transactionRunner.js
@@ -26,6 +26,9 @@ testing.runTests(function (testData, sst, cb) {
 
   try {
     var tx = new Tx(new Buffer(testData.rlp.slice(2), 'hex'))
+    if (testData.blocknumber !== '900000') {
+      tx._skipSValueCheck = true
+    }
   } catch (e) {
     sst.equal(undefined, tTx, 'should not have any fields ')
     cb()