Schnorr signature activation
Includes python activation tests based on replay protection activation.
- Tests that when upgrade / downgrade happens, newly-invalid transactions are dumped from mempool (but not valid ones).
- Don't ban peers who send a tx that would be valid under the mandatory flags on other side of upgrade/downgrade.
- Tests of 64-byte DER signatures
run functional tests
uncomment fakeDER64 and patch VerifySignature (see comment in file about fakeDER64)
run abc-schnorr-activation.py again
(I have also run these tests with the various critical bits of mainline code cancelled out, and verified the tests fail as expected.)
Reviewers: #bitcoin_abc, deadalnix, jasonbcox, Fabien
Reviewed By: #bitcoin_abc, deadalnix, jasonbcox, Fabien
Subscribers: Fabien, jasonbcox, florian, Mengerian, teamcity, schancel
Maniphest Tasks: T527
Differential Revision: https://reviews.bitcoinabc.org/D2483