Re: [bitcoin-dev] Removal of reject network messages from Bitcoin Core (BIP61)

2019-10-16 Thread John Newbery via bitcoin-dev
Following discussion on this mailing list, support for BIP 61 REJECT messages was not removed from Bitcoin Core in V0.19. The behaviour in that upcoming release is that REJECT messages are disabled by default and can be enabled using the `-enablebip61` command line option. Support for REJECT messa

Re: [bitcoin-dev] Chain width expansion

2019-10-16 Thread Braydon Fuller via bitcoin-dev
On 10/12/19 1:46 PM, Tier Nolan via bitcoin-dev wrote: > On Sat, Oct 12, 2019 at 6:56 PM Joachim Strömbergson > wrote: >> On different note, one of the problems that I haven't seen mentioned here >> yet is the timewarp attack. It is relevant to some of the proposed >> solutions. It should be pos

Re: [bitcoin-dev] Chain width expansion

2019-10-16 Thread Braydon Fuller via bitcoin-dev
On 10/15/19 8:50 AM, Joachim Strömbergson wrote: > [...] to generate much longer chain with superslow timestamp increase (~5 > blocks in 1 second) without increasing difficulty (i.e. staying at min. > diff.). [...] > In that case, it would take about 7 minutes of block time secon