From 3aa8b1dd6e0f504ef83da99f8c9cdb2532f948f5 Mon Sep 17 00:00:00 2001
From: Rob Austein <sra@hactrn.net>
Date: Sun, 13 Sep 2020 23:10:21 +0000
Subject: Initial conversion pass

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+# Rough Cut at v0.01 Proof of Concept Feature Set
+
+[[PageOutline]]
+
+This is a proposed version 0.01 product as a proof of concept.  The
+intent is not to have a very useful product, but rather to gain
+confidence in our architecture, tools, and team.  The result is intended
+to be the basis for further development into a more useful second stage,
+in the sense of
+[agile development](https://en.wikipedia.org/wiki/Agile_software_development).
+It very intentionally is not a
+[waterfall design](https://en.wikipedia.org/wiki/Waterfall_model),
+
+The interface between the Green and Yellow layers is seen as an important design
+inflection.
+
+Some code will be in C in the Green (auxiliary core) because we can get it open
+source out of the can.  for v.2 (or whatever) we would move it down to the FPGA in
+Verilog.
+
+## FPGA Overview
+[[Image(HW_sketch_v0001.png)]]
+\\
+\\
+## Sketch of TRNG Chain
+[[Image(HW_RNG.png​)]]
+\\
+\\
+
+## Off-FPGA
+
+* Persistent Storage
+    * For Keys and Time
+    * Or the battery for tamper wipe is big enough to hold the FPGA up
+    * Or the Green processor has enough non-volatile store
+* Entropy Source
+* Realtime Clock
+* Tamper Mechanism
+
+
+## Layers
+
+```
+#!html
+<h1 style="text-align: left; color: blue">
+  Blue / FPGA
+</h1>
+```
+
+
+* TRNG
+* BigNumber, Modular, & Exponentiation (expose to green for RSA)
+* SHA-256
+* AES-128
+* EC for ECDH. Curve3617 would be nice, but whatever we can get open source to start
+* OpenRISC Core or ARM to support Green (maybe FreeScale from Bunnie)
+
+
+```
+#!html
+<h1 style="text-align: left; color: green">
+  Green / On-Chip Core
+</h1>
+```
+
+
+* RSA 2048 & 4096 (move to blue later) [ 1024 for Tor? ]
+* MACs: HMAC, 1305, uMAC
+* DH (move to blue later)
+* Device Activation, Move Authorization, Wiping
+
+
+```
+#!html
+<h1 style="text-align: left; color: yellow">
+  Yellow / Off-Chip Support
+</h1>
+```
+
+
+* Interface to Red
+    * PKCS!#8
+    * PKCS!#11
+    * PGP Support
+* X.509 and PGP
+* PKCS!#11 for POLA resistance
+* No PKCS!#10 because it will take a year
+* Backup may be just dump/restore of the whole FPGA/CoreState
+
+
+```
+#!html
+<h1 style="text-align: left; color: red">
+  Red / Applications
+</h1>
+```
+
+
+* X.509 CA
+* DNSSEC
+* PGP (asymmetric key sign/verify + symmetric message encryption/decryption)
+* Tor consensus(?)
+
+
+## Issues in v0.01
+
+
+* License of tool chain to build
+* License for borrowed components (open cores, open fpga)
+* License for result
+    * What we build ourselves - BSD
+    * What components we ship - life is compromise
+* Toolchains, Verilog, C, ...
+* FPGAs and ASICs use a Verilog-based toolchain.  There are no mature open
+
+  Verilog compilers so the [DDC approach](http://www.dwheeler.com/trusting-trust/)
+  will not work.  Net-list optimization is also an issue.  We're looking into this,
+  but it's going to be really hard.  Research for v2.
+
+* Protoyping platform
+    * [Bunnie's Novena laptop](http://www.bunniestudios.com/blog/?p=3265)
+    * Altera Evaluation Board
+* RTC, external connectivity to et some sort of assured time
+* Repository - too many git junkies.  Keep main repo on our server for the security boundary.  Can mirror on GitHub to be socially cool.
+* Emacs or vi (no Rob, not TECO) :)
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