modexp input test

Consensus big in Parity: gas calculation of modexp is subject to overflow for certain inputs. Found via manual review. A case was found where consensus issue could be achieved in ~500K gas.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/BlockchainTestsFiller/GeneralStateTests/stPreCompiledContracts2/modexpRandomInput_d2g1v0Filler.json b/src/BlockchainTestsFiller/GeneralStateTests/stPreCompiledContracts2/modexpRandomInput_d2g1v0Filler.json
new file mode 100644
index 000000000..0c98bc0f4
--- /dev/null
+++ b/src/BlockchainTestsFiller/GeneralStateTests/stPreCompiledContracts2/modexpRandomInput_d2g1v0Filler.json
@@ -0,0 +1,55 @@
+{
+    "modexpRandomInput_d2g1v0" : {
+        "blocks" : [
+            {
+                "blockHeaderPremine" : {
+                    "difficulty" : "0x020000",
+                    "gasLimit" : "0x05f5e100",
+                    "timestamp" : "0x03e8",
+                    "updatePoW" : "1"
+                },
+                "transactions" : [
+                    {
+                        "data" : "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001147000000000000000000000000000000000000000000000000000000000061660350000000000000000000000000000000000000000000000000000000000000008",
+                        "gasLimit" : "0x6acfc0",
+                        "gasPrice" : "0x01",
+                        "nonce" : "0x00",
+                        "r" : "0xb37d77a66c3e92e5bc6ce02c5cf681dc209534afb388b763837cff9400b6a69b",
+                        "s" : "0x08d5cbe47b56954f8a061cfe20c4144f5331587210444a3d0d8b6cbc21869c",
+                        "to" : "0x0000000000000000000000000000000000000005",
+                        "v" : "0x1b",
+                        "value" : "0x00"
+                    }
+                ],
+                "uncleHeaders" : [
+                ]
+            }
+        ],
+        "genesisBlockHeader" : {
+            "bloom" : "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+            "coinbase" : "3535353535353535353535353535353535353535",
+            "difficulty" : "131072",
+            "extraData" : "0x42",
+            "gasLimit" : "0x05f5e100",
+            "gasUsed" : "0",
+            "mixHash" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+            "nonce" : "0x0102030405060708",
+            "number" : "0",
+            "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
+            "receiptTrie" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+            "stateRoot" : "0xf99eb1626cfa6db435c0836235942d7ccaa935f1ae247d3f1c21e495685f903a",
+            "timestamp" : "0x03b6",
+            "transactionsTrie" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+            "uncleHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"
+        },
+        "pre" : {
+            "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b" : {
+                "balance" : "0x3635c9adc5dea00000",
+                "code" : "",
+                "nonce" : "0x00",
+                "storage" : {
+                }
+            }
+        }
+    }
+}
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