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Minor edits to update the system description to new release

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Signed-off-by: Joachim Strömbergson <joachim@assured.se>
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Joachim Strömbergson 2023-03-22 15:08:39 +01:00
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doc/system_description/system_description.md
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@ -24,9 +24,10 @@ The intended users of this document are:
## Introduction ## Introduction
The TKey is a USB-connected, RISC-V based application platform. The The TKey is a USB-connected, RISC-V based application platform. The
purpose of the TKey is to provide a secure environment purpose of the TKey is to provide a secure environment for TKey device
for applications that provides some security functionality needed by the apps that provides some security functionality to the client as needed
device user. Some examples of such security functionality are: by the use case and device user. Some examples of such security
functionality are:
- TOTP token generators - TOTP token generators
- Signing oracles - Signing oracles
@ -88,9 +89,9 @@ The TKey as a project, system and secure application platform
consists of a number of subsystems and components, modules, support consists of a number of subsystems and components, modules, support
libraries etc. Roughly these can be divided into: libraries etc. Roughly these can be divided into:
- TKey boards. PCB designs including schematics, Bill of Material (BOM) - TKey boards. PCB designs including schematics, Bill of Material
and layout, as needed for development, production and and general usage (BOM) and layout, as needed for development, production and and
of the TKey devices general usage of the TKey devices
- TKey programmer. SW, PCB designs including schematics, Bill of - TKey programmer. SW, PCB designs including schematics, Bill of
Material (BOM) and layout, as needed for development, production Material (BOM) and layout, as needed for development, production
@ -99,14 +100,16 @@ libraries etc. Roughly these can be divided into:
- USB to UART controller. FW for the MCU implementing the USB host - USB to UART controller. FW for the MCU implementing the USB host
interface on the TKey interface on the TKey
- application_fpga. FPGA design with cores including CPU and memory that - application_fpga. FPGA design with cores including CPU, TRNG, UART
implements the secure application platform FW ROM and RAM that together form the the secure application
platform
- application_fpga FW. The base software running on the CPU as needed to - application_fpga FW. The base software running on the CPU as needed
boot, load applications, measure applications, dderive base secret etc to boot the device, load applications, measure applications, derive
the CDI base secret etc
- One or more applications loaded onto the application_fpga to provide - One or more TKey device apps loaded onto the application_fpga to
some functionality to the user of the host provide some functionality to the user of the host
- host side application loader. Software that talks to the FW in the - host side application loader. Software that talks to the FW in the
application_fpga to load a secure application application_fpga to load a secure application
@ -115,11 +118,11 @@ libraries etc. Roughly these can be divided into:
the TKey device connected to a host the TKey device connected to a host
- host side secure application. Software that communicates with the - host side secure application. Software that communicates with the
secure application running in the application_fpga as needed to solve secure application running in the application_fpga as needed to
a security objective solve a security objective
- application_fpga FW SDK. Tools, libraries, documentation and examples - application_fpga FW SDK. Tools, libraries, documentation and
to support development of the application_fpga firmware examples to support development of the application_fpga firmware
- secure application SDK. Tools, libraries, documentation and examples - secure application SDK. Tools, libraries, documentation and examples
to support development of the secure applications to be loaded onto to support development of the secure applications to be loaded onto