-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Sun, Jul 14, 2013 at 7:42 PM, Pieter Wuille <pieter.wui...@gmail.com> wrote: > On Sun, Jul 14, 2013 at 07:33:06PM +0000, Luke-Jr wrote: >> Invalid blocks are rejected by validating clients in all circumstances. > > I don't think that's what John means. > > If you have hash power for the parent chain, mining invalid blocks for the > merge-mined chain costs you nothing. Yes, they will be invalid, but you've > lost nothing. > > The basic assumption underlying mining security is that it is more profitable > to collaborate with mining a chain (and profit from the block payout) than to > attack it. In the case of merged mining, this assumption is not valid.
You said it better than I did. Essentially I am worried about the chain being strangled at birth, merge-mining makes doing so cost nothing for the attacker. With zerocoin this is a particularly dangerous possibility due to those in the Bitcoin community who would like to see Bitcoin continue to have poor privacy properties. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAEBCAAGBQJR4wF9AAoJEEWCsU4mNhiPtCgH/3QLvFer3QHNU7AP+nehwcgK QS3xLv60lvm+pYLVAp9xFyJ5SCHVGTPvWRBmoldk8xxh9ORHlNEsnrcx9ZONTJ4F ja4Alp9MLZK5S8dKk2juJNdKziyRkQci/nNwuqepX5JjCIRNZq1lcW4Be4W7InPt Ltrvp7lA03uNuAXxtlYnko4mEY5l1NiBp4BvhGZ6+GRdCltPeIk2m0NwLDHWd31t qFLnnPSw0/9FGVs7lOaWuxbMGwPzGrIu6TXm17dqgBsl+8JuP6zHFE1ccqIxKyb6 Tdf4yNvhsvE+qlTnmcQNxM9nMHL4uqBZqJR174fAKQzcNGzVLloqbmRqKzuw5o4= =leUJ -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
