Commit graph

8 commits

Author SHA1 Message Date
Dave Collins
b60e3547d2 txscript: Correct nulldata standardness check.
This corrects the isNullData standard transaction type test to work
properly with canonically-encoded data pushes.  In particular, single
byte data pushes that are small integers (0-16) are converted to the
equivalent numeric opcodes when canonically encoded and the code failed
to detect them properly.

It also adds several tests to ensure that both canonical and
non-canonical nulldata scripts are recognized properly and modifies the
test failure print to include the script that failed.

This does not affect consensus since it is just a standardness check.
2016-10-20 01:44:58 -05:00
David Hill
a6bf1d9850 txscript: Implement CheckSequenceVerify (BIP0112) 2016-10-19 12:06:44 -04:00
David Hill
3fa416a7ef txscript: fix isMultiSig bug.
isMultiSig was not verifying the number of pubkeys specified matched
the number of pubkeys provided.  This caused certain non-standard
scripts to be considered multisig scripts.

However, the script still would have failed during execution.

NOTE: This only affects whether or not the script is considered
standard and does NOT affect consensus.

Also, add a test for this check.
2015-10-22 15:55:34 -04:00
David Hill
4c3ad4987b txscript: Implement CheckLockTimeVerify (BIP0065)
See https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki for
more information.

This commit mimics Bitcoin Core commit bc60b2b4b401f0adff5b8b9678903ff8feb5867b
and includes additional tests from Bitcoin Core commit
cb54d17355864fa08826d6511a0d7692b21ef2c9
2015-10-14 13:19:49 -04:00
David Hill
0f57a41ed8 txscript: Add ScriptVerifyLowS to the standard flags
We've already been generating lowS sigs for quite a while.  This removes
the malleability vector.

This mimics Bitcoin Core commit 49dd5c629df0a08cf3b1ea8085c03312d1a81696
2015-10-09 15:30:12 -04:00
Bruno
4335ce828c switch maxDataCarrierSize to public const 2015-07-20 14:26:05 +08:00
Dave Collins
927a0e9c37 txscript: Test consistency and cleanup.
- Move reference tests to test package since they are intended to
  exercise the engine as callers would
- Improve the short form script parsing to allow additional opcodes:
  DATA_#, OP_#, FALSE, TRUE
- Make use of a function to decode hex strings rather than manually
  defining byte slices
- Update the tests to make use of the short form script parsing logic
  rather than manually defining byte slices
- Consistently replace all []byte{} and [][]byte{} with nil
- Define tests only used in a specific function inside that func
- Move invalid flag combination test to engine_test since that is what
  it is testing
- Remove all redundant script tests in favor of the JSON-based tests in
  the data directory.
- Move several functions from internal_test.go to the test files
  associated with what the tests are checking
2015-05-04 16:04:29 -05:00
Dave Collins
005b540895 txscript: Separate code for standard scripts.
This commit moves all code related to standard scripts into a separate
file named standard.go as well as the associated tests into
standard_test.go.  Since the code in address.go and address_test.go is
only related to standard scripts, it has been combined into the new
files and the old files deleted.

The intent here is to make it clear that the code in standard.go is not
related to consensus.
2015-05-01 15:20:48 -05:00