From ffe7102fce892f162ca290f833f07be2c0695e4f Mon Sep 17 00:00:00 2001
From: Rasmus Dahlberg <rasmus.dahlberg@kau.se>
Date: Wed, 13 Oct 2021 11:25:23 +0200
Subject: added history.md document

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+# History
+This is a living document that documents the history of the Sigsum project.
+
+## 2019
+Mullvad VPN announced a project named System Transparency
+	[\[1\]](https://mullvad.net/en/blog/2019/6/3/system-transparency-future/).
+System Transparency is a security architecture for bare-metal servers that aims
+to make a system's boot chain remotely verifiable by any interested party
+	[\[2\]](https://www.system-transparency.org/).
+
+Fredrik Strömberg presented the System Transparency design at PUTS
+	[\[3\]](https://petsymposium.org/2019/files/workshop/abstracts/PUT_2019_paper_32.pdf).
+One part of the design included a Certificate Transparency log
+	[\[4\]](https://mullvad.net/media/system-transparency-rev5.pdf).
+Rasmus Dahlberg suggested use of a separate System Transparency log.
+
+## 2020
+In October, Fredrik Strömberg and Rasmus Dahlberg started focused design
+iterations on a transparency log that would be better suited for the System
+Transparency project
+	[\[5\]](https://github.com/system-transparency/stfe/commit/40250377da81864e9e502b803c0543c48e4a0615).
+
+## 2021
+Linus Nordberg joined the System Transparency logging discussions in January.  A
+few months later, drafts of the resulting design were presented at PADSEC
+	[\[6\]](https://web.archive.org/web/20210427203606/https://hopin.com/events/padsec)
+and SWITS
+	[\[7,](https://web.archive.org/web/20210603112144/https://swits.hotell.kau.se/AnnualSeminars/SWITS%202021/SWITS_2021/SWITS2021_Programme.htm)
+	[8\]](https://web.archive.org/web/20210923134324/https://swits.hotell.kau.se/AnnualSeminars/SWITS%202021/SWITS_2021/SWITS_2021_paper_17.pdf).
+
+In June, Fredrik Strömberg, Rasmus Dahlberg, and Linus Nordberg decided to
+rebrand System Transparency logging as a separate project that is funded but not
+governed by Mullvad VPN
+	[\[9\]](https://git.sigsum.org/sigsum/tree/archive/2021-06-21--meeting-minutes).
+
+The Sigsum Project launched in October
+	[\[10\]]().
+It is managed by Rasmus Dahlberg (Mullvad VPN) and Linus Nordberg (independent).
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