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| author | Karl-Johan Alm <karljohan-alm@garage.co.jp> | 2018-09-05 12:00:39 +0900 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2018-09-05 03:10:11 +0000 |
| commit | 5e3c7e06c51e4a30688989a3475d192bf4684540 (patch) | |
| tree | 1713ef7fa760fa432e70e00042e3a51b1c6ab115 | |
| parent | 780ccd3362d051a06affc98d62dd1e8da62081a3 (diff) | |
| download | pi-bitcoindev-5e3c7e06c51e4a30688989a3475d192bf4684540.tar.gz pi-bitcoindev-5e3c7e06c51e4a30688989a3475d192bf4684540.zip | |
Re: [bitcoin-dev] Testnet3 Reest
| -rw-r--r-- | 82/95bccba090fa26544dcd5294dd7b629a3d4c4c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/82/95bccba090fa26544dcd5294dd7b629a3d4c4c b/82/95bccba090fa26544dcd5294dd7b629a3d4c4c new file mode 100644 index 000000000..a34d89de5 --- /dev/null +++ b/82/95bccba090fa26544dcd5294dd7b629a3d4c4c @@ -0,0 +1,121 @@ +Return-Path: <karljohan-alm@garage.co.jp> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 8470FBE0 + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 5 Sep 2018 03:10:11 +0000 (UTC) +X-Greylist: delayed 00:09:15 by SQLgrey-1.7.6 +Received: from mo.garage.hdemail.jp (mo.garage.hdemail.jp [46.51.242.127]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 71217713 + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 5 Sep 2018 03:10:09 +0000 (UTC) +Received: from ip-10-217-1-36.ap-northeast-1.compute.internal + (localhost.localdomain [127.0.0.1]) + by mo.garage.hdemail.jp (hde-mf-postfix) with SMTP id AFAA114C0EE + for <bitcoin-dev@lists.linuxfoundation.org>; + Wed, 5 Sep 2018 12:00:52 +0900 (JST) + (envelope-from karljohan-alm@garage.co.jp) +X-Received: from unknown (HELO mo.garage.hdemail.jp) (127.0.0.1) + by 0 with SMTP; 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+ Tue, 04 Sep 2018 20:00:50 -0700 (PDT) +X-Google-Smtp-Source: ANB0VdYzf4hh0uxESq9XWxeBaEBqyqQVHpb6fiItxY1dQmSKLJqYQu9Yyp/nXWp3TGhXza8R7ERSOPePSDGUAcQM1Uw= +X-Received: by 2002:a37:1626:: with SMTP id + g38-v6mr31179043qkh.176.1536116450507; + Tue, 04 Sep 2018 20:00:50 -0700 (PDT) +MIME-Version: 1.0 +References: <CABuOfuh7M6siJW1FzXajsBSeYSu=TBEgx9SAmCbwnP=yb7rJOQ@mail.gmail.com> + <20180830200239.ujuzh7pitcuatdt3@petertodd.org> + <7E247E56-38A5-4B99-941A-A2CC837D2567@xbt.hk> + <CAAS2fgSF=hx581aGUBVv6zardKG4gex43B-jZbAu0a9Rupg1WQ@mail.gmail.com> +In-Reply-To: <CAAS2fgSF=hx581aGUBVv6zardKG4gex43B-jZbAu0a9Rupg1WQ@mail.gmail.com> +From: Karl-Johan Alm <karljohan-alm@garage.co.jp> +Date: Wed, 5 Sep 2018 12:00:39 +0900 +Message-ID: <CALJw2w6a2YMS=nso5_6Rsom8qgNt93me3sv7Gr1vrHNcrZOVHQ@mail.gmail.com> +To: Gregory Maxwell <greg@xiph.org>, + Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org> +Content-Type: text/plain; charset="UTF-8" +X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE + autolearn=ham version=3.3.1 +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + smtp1.linux-foundation.org +X-Mailman-Approved-At: Wed, 05 Sep 2018 13:43:50 +0000 +Cc: shiva@blockonomics.co +Subject: Re: [bitcoin-dev] Testnet3 Reest +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.12 +Precedence: list +List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Wed, 05 Sep 2018 03:10:11 -0000 + +On Fri, Aug 31, 2018 at 9:43 PM Gregory Maxwell via bitcoin-dev +<bitcoin-dev@lists.linuxfoundation.org> wrote: +> We looked at doing this previously in Bitcoin core and jtimon had some +> patches, but the existing approach increased the size of the +> blockindex objects in memory while not in signed testnet mode. This +> could probably have been fixed by turning one of the fields like the +> merkel root into a union of it's normal value and a pointer a +> look-aside block index that is used only in signed block testnet mode. + +I am currently working on an implementation that simply puts a global +mapping of block hash to signature that is transparently +(de)serialized in the block header. + +We were looking into various ways to stuff the signature into the +actual header itself without changing its size, but this looked like +it required truncating the prevblock/merkleroots and such, which +seemed a bit too invasive. + +I don't think my approach with a global mapping to sig differs in any +meaningful way from your suggested union, but corrections welcome. + +The code is here: https://github.com/kallewoof/bitcoin/tree/signet + +I believe jtimon is interested in helping out, and Jeremy Rubin has +also said he wants to help. + |