Default acknowledgement button to yes

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "chopstx"]
 	path = chopstx
-	url = ../../chopstx/chopstx.git
+	url = ../chopstx.git

AUTHORS

@@ -1,106 +0,0 @@
-Aurelien Jarno:
-    Modified:
-	src/Makefile
-	src/configure
-	src/main.c
-	src/stack-def.h
-
-Anthony Romano:
-    Modified:
-	src/call-rsa.c
-	src/main.c
-	src/mod.c
-
-Bertrand Jacquin
-    Modified:
-	tool/add_openpgp_authkey_from_gpgssh.py
-	tool/calc_precompute_table_ecc.py
-	tool/dfuse.py
-	tool/dump_mem.py
-	tool/get_raw_public_key.py
-	tool/pageant_proxy_to_gpg.py
-	tool/pinpadtest.py
-
-Jeremy Drake:
-    Modified:
-	regnual/regnual.c
-
-Kaz Kojima:
-    Added STM32 Primer2 support.
-
-NIIBE Yutaka:
-    Founder of the project.
-    Wrote tools for STLink/V2:
-	tool/stlinkv2.py
-    Wrote tools for DfuSe:
-	tool/dfuse.py
-	tool/dump_mem.py
-	tool/intel_hex.py
-    Wrote a tool for Gnuk:
-	tool/gnuk_put_binary.py
-	tool/gnuk_put_binary_libusb.py
-	tool/gnuk_remove_keys.py
-	tool/gnuk_upgrade.py
-    Wrote a tool for USB Hub:
-	tool/hub_ctrl.py
-    Wrote a tool for testing card reader with pinpad:
-	tool/pinpadtest.py
-    Wrote reGNUal implementation:
-	regnual/regnual.c
-	regnual/sys.c
-    Wrote Gnuk implementation:
-	gnuk.svg
-	src/configure
-	src/ac.c
-	src/call-rsa.c
-	src/debug.c
-	src/flash.c
-	src/gnuk.h
-	src/main.c
-	src/neug.c
-	src/openpgp-do.c
-	src/openpgp.c
-	src/openpgp.h
-	src/pin-cir.c
-	src/pin-dial.c
-	src/pin-dnd.c
-	src/random.c
-	src/sys.c
-	src/usb-icc.c
-	src/usb-msc.c
-	src/usb-msc.h
-	src/usb_ctrl.c
-	src/usb_desc.c
-	src/usb_lld.c
-	src/usb_lld.h
-	*
-	and others.
-
-Peter Lebbing:
-    Modified:
-	src/config.h.in
-	src/configure
-	src/main.c
-	src/Makefile
-    Wrote:
-	src/stdaln-sys.ld.in
-
-Vincent Pelletier:
-    Modified:
-	test/features/202_setup_passphrase.feature
-	test/rsa_keys.py
-	tests/card_const.py
-	tests/card_reader.py
-	tests/rsa_keys.py
-        tool/gnuk_token.py
-    Wrote:
-	tests/card_test_ansix9p256r1.py
-	tests/card_test_ansix9p384r1.py
-	tests/card_test_ansix9p512r1.py
-	tests/card_test_brainpoolp256r1.py
-	tests/card_test_brainpoolp384r1.py
-	tests/card_test_brainpoolp512r1.py
-	tests/card_test_ed25519.py
-	tests/card_test_x25519.py
-	tests/func_pso_auth.py
-	tests/test_006_pso.py

GNUK_USB_DEVICE_ID

@@ -3,4 +3,5 @@
 234b:0000	0200	Gnuk Token	Free Software Initiative of Japan
 20a0:4211	0200	Nitrokey Start	Nitrokey
 1209:2440	0200	Gnuk Token	GnuPG e.V.
+1337:0010	0200	Gnuk Token	Deon Spengler
 ##########<TAB>	##<TAB>	##########<TAB>	#################

NEWS

@@ -1,6 +1,49 @@
 Gnuk NEWS - User visible changes
 
 
+* Major changes in Gnuk 1.2.20
+
+  Released 2022-04-22, by NIIBE Yutaka
+
+** Minor fixes for newer compiler
+
+For build with newer compiler, Gnuk and regnual are fixed for address
+calculation and access to object on memory, as well as declarations of
+function and type in standard C library.
+
+** Upgrade of Chopstx
+
+We use Chopstx 1.21.  This includes fix to silence compiler warnings.
+
+
+* Major changes in Gnuk 1.2.19
+
+  Released 2021-10-12, by NIIBE Yutaka
+
+** KDF Data Object configuration
+KDF Data Object should be highly recommended for all configurations.
+Nevertheless, for backward compatibillity, in Gnuk 1.2, it is optional
+by default; It is up to user to configure KDF Data Object before
+importing private keys.  In this situation, it is not good to
+introduce new build-time option like --enable-always-require-kdf-do,
+because it might wrongly encourage use of Gnuk with no KDF Data Object
+setting, by confusion.  If needed, please run configure:
+
+  kdf_do=required ./configure --enable-factory-reset --target...
+
+or
+
+  kdf_do=optional ./configure --enable-factory-reset --target...
+
+Please note that such a use of variable by shell command line is not
+well supported by the configure script (for other variables), but
+override of kdf_do is needed in some situations.
+
+** Upgrade of Chopstx
+We use Chopstx 1.20.  This enables use with PC/SC for GNU/Linux
+emulation.
+
+
 * Major changes in Gnuk 1.2.18
 
   Released 2021-04-02, by NIIBE Yutaka

README

@@ -1,631 +0,0 @@
-Gnuk - An Implementation of USB Cryptographic Token for GnuPG
-
-							 Version 1.2.18
-							     2021-04-02
-							   Niibe Yutaka
-				      Free Software Initiative of Japan
-
-Release Notes
-=============
-
-This is the release of Gnuk, version 1.2.18, which has major
-incompatible changes to Gnuk 1.0.x.  Specifically, it now supports
-overriding key import, but importing keys (or generating keys) results
-password reset.  Also, you need to import private keys before changing
-your password.  Please update your documentation for Gnuk Token, so
-that the instruction of importing keys won't cause any confusion.
-
-It has supports of Ed25519 and X25519 (ECDH on Curve25519).  It also
-has experimental support of ECDSA (on NIST P256 and secp256k1) and
-ECDH (on NIST P256 and secp256k1).
-
-It also supports RSA-4096, but users should know that it takes more
-than 8 seconds to sign/decrypt.  Key generation of RSA-4096 just fails,
-because the device doesn't have enough memory.
-
-It supports new KDF-DO feature.  Please note that this is
-experimental.  To use the feature, you need to use newer GnuPG (2.2.6
-or later).  You need to prepare the KDF-DO on your token by the
-card-edit/kdf-setup command.
-
-With FST-01SZ and GNU/Linux emulation, experimental ack button support
-is available for test.
-
-
-What's Gnuk?
-============
-
-Gnuk is an implementation of USB cryptographic token for GNU Privacy
-Guard.  Gnuk supports OpenPGP card protocol version 3, and it runs on
-STM32F103 processor (and its compatible).
-
-I wish that Gnuk will be a developer's soother who uses GnuPG.  I have
-been nervous of storing secret key(s) on usual secondary storage.
-There is a solution with OpenPGP card, but it is not the choice for
-me, as card reader is not common device.  With Gnuk, this issue will
-be solved by a USB token.
-
-Please look at the graphics of "gnuk.svg" for the software name.  My
-son used to be with his NUK(R), always, everywhere.  Now, I am with a
-USB Cryptographic Token by "Gnuk", always, everywhere.
-
-
-FAQ
-===
-
-Q0: How Gnuk USB Token is superior than other solutions (OpenPGP
-    card 2.0/3.3/3.4, YubiKey, etc.) ?
-    https://www.g10code.de/p-card.html
-    https://www.yubico.com/
-A0: Good points of Gnuk are:
-    * If you have skill of electronics and like DIY, you can build
-      Gnuk Token cheaper (see Q8-A8).
-    * You can study Gnuk to modify and to enhance.  For example, you
-      can implement your own authentication method with some sensor
-      such as an acceleration sensor.
-    * It is "of Free Software"; Gnuk is distributed under GPLv3+,
-	    "by Free Software"; Gnuk development requires only Free Software
-				(GNU Toolchain, Python, etc.), 
-	    "for Free Software"; Gnuk supports GnuPG.
-
-Q1: What kind of key algorithm is supported?
-A1: Gnuk version 1.0 only supports RSA-2048.
-    Gnuk version 1.2.x supports 255-bit EdDSA, as well as RSA-4096.
-    (Note that it takes long time to sign with RSA-4096.)
-
-Q2: How long does it take for digital signing?
-A2: It takes a second and a half or so for RSA-2048. 
-    It takes more than 8 seconds for RSA-4096.
-
-Q3: What's your recommendation for target board?
-A3: Orthodox choice is Olimex STM32-H103.
-    FST-01SZ (Flying Stone Tiny 01 SZ) is available for sale, and it
-    is a kind of the best choice, hopefully.  If you have a skill of
-    electronics, STM32 Nucleo F103 is the best choice for experiment.
-
-Q4: What's version of GnuPG are you using?
-A4: In Debian GNU/Linux system, I use GnuPG modern 2.2.23.
-
-Q5: What's version of pcscd and libccid are you using?
-A5: I don't use them, pcscd and libccid are optional, you can use Gnuk
-    Token without them.
-    I tested pcscd 1.5.5-4 and libccid 1.3.11-2 which were in Debian
-    squeeze.
-
-Q6: What kinds of hardware is required for development?
-A6: You need a target board plus a JTAG/SWD debugger.  If you just
-    want to test Gnuk for target boards with DfuSe, JTAG debugger is
-    not the requirement.  Note that for real use, you need JTAG/SWD
-    debugger to enable flash ROM protection.
-
-Q7: How much does it cost?
-A7: Olimex STM32-H103 plus ARM-USB-TINY-H cost 70 Euro or so.
-
-Q8: How much does it cost for DIY version?
-A8: STM32 Nucleo F103 costs about $10 USD.
-
-Q9: I got an error like "gpg: selecting openpgp failed: ec=6.108", what's up?
-A9: Older GnuPG's SCDaemon has problems for handling insertion/removal of
-    card/reader.  When your newly inserted token is not found by
-    GnuPG, try killing scdaemon and let it to be invoked again.  I do:
-
-	 $ gpg-connect-agent "SCD KILLSCD" "SCD BYE" /bye
-
-    and confirm scdaemon doesn't exist, then,
-
-	 $ gpg-connect-agent learn /bye
-
-Qa: With GNOME 2, I can't use Gnuk Token for SSH.  How can we use it for SSH?
-Aa: You need to deactivate seahorse-agent and gnome-keyring, but use
-    gpg-agant for the role of ssh-agent.  For gnome-keyring please do:
-
-      $ gconftool-2 --type bool --set /apps/gnome-keyring/daemon-components/ssh false
-
-Qb: With GNOME 3.0, I can't use Gnuk Token at all.  Why?
-Ab: That's because gnome-keyring-daemon interferes GnuPG.  Type:
-
-      $ gnome-session-properties
-
-    and at the tab of "Startup Programs", disable check buttons for
-    "GPG Password Agent" and "SSH Key Agent".
-
-Qc: With GNOME 3.x (x >= 8?), I can't use Gnuk Token at all.  Why?
-Ac: That's because gnome-keyring-daemon interferes GnuPG.  Please
-    disable the invocation of gnome-keyring-daemon.  In Debian
-    wheezy, it's in the files /etc/xdg/autostart/gnome-keyring-ssh.desktop
-    and /etc/xdg/autostart/gnome-keyring-gpg.desktop.
-    We have a line something like:
-
-        OnlyShowIn=GNOME;Unity;MATE;
-
-    Please edit this line to:
-
-        OnlyShowIn=
-
-Qd: Do you know a good SWD debugger to connect FST-01 or something?
-Ad: ST-Link/V2 is cheap one.  We have a tool/stlinkv2.py as flash ROM
-    writer program.  STM32 Nucleo F103 comes with the valiant of
-    ST-Link/V2.  Note that the firmware of ST-Link/V2 is proprietary.
-    So, in case of transparency matters, ST-Link/V2 would not be your
-    choice.
-    I care transparency for our process of manufacturing FST-01SZ (and
-    better control by Free Software, in general), thus, I develop
-    BBG-SWD, SWD debugger by BeagleBone Green.
-    I use ST-Link/V2 for daily development.  For serious task like
-    flashing product, I use BBG-SWD.
-
-
-Tested features
-===============
-
-Gnuk is tested by test suite.  Please see the "tests" directory.
-
-	* Personalization of the card
-	  * Changing Login name, URL, Name, Sex, Language, etc.
-	* Password handling (PW1, RC, PW3)
-	* Key import for three types:
-	  * key for digital signing
-	  * key for decryption
-	  * key for authentication
-	* PSO: Digital Signature
-	* PSO: Decipher
-	* INTERNAL AUTHENTICATE
-	* Changing value of password status bytes (0x00C4): forcesig
-	* Verify with pin pad
-	* Modify with pin pad
-	* Card holder certificate (read)
-	* Removal of keys
-	* Key generation on device side for RSA-2048
-	* Overriding key import
-
-Original features of Gnuk, tested manually lightly:
-
-	* OpenPGP card serial number setup
-	* Card holder certificate (write by UPDATE BINARY)
-	* Upgrading with "EXTERNAL AUTHENTICATE" by reGNUal
-
-
-Targets
-=======
-
-We use Olimex STM32-H103 board and Flying Stone Tiny 01 (FST-01).
-
-With DfuSe support, STBee is also our targets.  But this target with
-DfuSe is for experiment only, because it is impossible for DfuSe to
-disable read from flash.  For real use, please consider killing DfuSe
-and enabling read protection using JTAG debugger.
-
-
-Build system and Host system
-============================
-
-Makefile is written for GNU make.  You need Bash 4.x for configure.
-
-If your bash is not installed as /bin/bash, you need to run configure
-script prepending 'bash' before './configure'.
-
-Some tools are written in Python.  If your Python is not installed as
-/usr/bin/python, please prepend 'python' or 'python3' for your command
-invocation.  I use Python 3.8 and PyUSB 1.0.2.
-
-
-Source code
-===========
-
-Gnuk source code is under src/ directory.
-
-Note that SHA-2 hash function implementation, src/sha256.c, is based
-on the original implementation by Dr. Brian Gladman.  See:
-
-  http://brg.a2hosted.com//oldsite/cryptography_technology/sha/index.php
-(was at:
- http://gladman.plushost.co.uk/oldsite/cryptography_technology/sha/index.php)
-
-
-License
-=======
-
-It is distributed under GNU General Public Licence version 3 or later
-(GPLv3+).  Please see src/COPYING.
-
-Please note that it is distributed with external source code too.
-Please read relevant licenses for external source code as well.
-
-The author(s) of Gnuk expect users of Gnuk will be able to access the
-source code of Gnuk, so that users can study the code and can modify
-if needed.  This doesn't mean person who has a Gnuk Token should be
-able to access everything on the Token, regardless of its protections.
-Private keys, and other information should be protected properly.
-
-
-External source code
-====================
-
-Gnuk is distributed with external source code.
-
-* chopstx/  -- Chopstx 1.19
-
-  We use Chopstx as the kernel for Gnuk.
-
-  Chopstx is distributed under GPLv3+ (with a special exception).
-
-
-* polarssl/  -- based on PolarSSL 1.2.10 (now mbedTLS)
-
-  Souce code taken from: http://polarssl.org/
-
-  We use PolarSSL for RSA computation, and AES encryption/decryption.
-
-  PolarSSL is distributed under GPLv2+.  We use PolarSSL under GPLv3
-  as our options.
-
-  The file include/polarssl/bn_mul.h is heavily modified for ARM
-  Cortex-M3.
-
-  The function rsa_private in polarssl/library/rsa.c is modified so
-  that it doesn't check T against N.  The function rsa_pkcs1_sign is
-  modified to avoid warnings in case of !POLARSSL_PKCS1_V21.
-
-  The functions rsa_pkcs1_verify and rsa_rsassa_pkcs1_v15_verify in
-  include/polarssl/rsa.h and polarssl/library/rsa.c are modified
-  (fixed) for last argument SIG, as the memory at SIG aren't modified
-  by those routines.
-
-  The constant POLARSSL_MPI_MAX_SIZE in include/polarssl/bignum.h is
-  modified for 2048-bit keys only Gnuk.
-
-  The function mpi_mul_hlp in library/bignum.c is modified for more
-  optimization for ARM Cortex-M3.  Functions mpi_montred, mpi_sub_hlp,
-  mpi_sub_abs, mpi_mul_mpi, mpi_montmul, and mpi_exp_mod are modified
-  to avoid side channel attacks.  Note that we don't use RSA-blinding
-  technique for Gnuk.  Function mpi_gen_prime and mpi_is_prime are
-  modified to use Fouque-Tibouchi method.  Function mpi_exp_mod is
-  modified to use new function mpi_montsqr for speed up.
-
-  The file library/aes.c is modified so that some constants can
-  go to .sys section.
-
-  The file include/polarssl/config.h are modified not to define
-  POLARSSL_HAVE_LONGLONG to avoid linking libgcc, to define
-  POLARSSL_AES_ROM_TABLES to have AES tables, not to define
-  POLARSSL_CIPHER_MODE_CTR, POLARSSL_FS_IO, POLARSSL_PKCS1_V21,
-  POLARSSL_SELF_TEST, and POLARSSL_PADLOCK_C, and only define
-  POLARSSL_GENPRIME when defined KEYGEN_SUPPORT.
-
-  And polarssl/library/bignum.c is modified to work on 64-bit machine.
-
-  Aurelien Jarno also modified:
-
-	polarssl/include/polarssl/bn_mul.h
-	polarssl/library/bignum.c
-
-  See ChangeLog (and/or history of git) for detail.
-
-
-USB vendor ID and product ID (USB device ID)
-============================================
-
-When you have a vendor ID and assign a product ID for Gnuk, edit the
-file GNUK_USB_DEVICE_ID and add an entry for yours.  In this case,
-please contact Niibe, so that it is listed to the file in the official
-release of the source code.
-
-When you are modifing Gnuk and installing the binary to device, you
-should replace the vendor string and serial number to yours (in the
-file GNUK_USB_DEVICE_ID and SERIALNO of the script of src/configure),
-so that users can see it's not by original vendor, and it is modified
-version.
-
-FSIJ allows you to use USB device ID of FSIJ (234b:0000) for devices
-with Gnuk under one of following conditions:
-
-  * For everyone for experimental purpose:
-
-    - You must not distribute a binary with FSIJ's USB device ID, but
-      must use the binary by yourself only for your experiment.  Note
-      that "Distributing binary" includes distributing a device which
-      holds the binary.
-
-  * For general individuals:
-
-    - You must use your Gnuk device with a card serial number which is
-      *not* by FSIJ.  Easy one would be a card serial number generated
-      by chip unique ID.
-
-  * For individuals with explicit permission from FSIJ.
-
-    - You should have an assigned card serial number by FSIJ,
-      please use that number for your device.
-      (There a file 'GNUK_SERIAL_NUMBER' in the official release.)
-
-FSIJ could give companies or business entities "second source
-manufacturer" license to use USB device ID of FSIJ for devices with
-unmodified version of Gnuk, provided they support Free Software and
-respect users' freedom for computing.  Please ask FSIJ for the
-license.
-
-Otherwise, companies which want to distribute Gnuk devices, please use
-your own USB vendor ID and product ID.  Please replace vendor string
-and possibly product string to yours, when you modify Gnuk.
-
-
-Host Requirements
-=================
-
-For GNU/Linux, PC/SC service is an option, you can use GnuPG's
-internal CCID driver instead.  If you chose using PC/SC service,
-libccid version >= 1.3.11 is recommended for GNU/Linux.
-
-
-How to compile
-==============
-
-You need GNU toolchain and newlib for 'arm-none-eabi' target.
-
-On Debian we can install the packages of gcc-arm-none-eabi
-and its friends.  I'm using:
-
-	binutils-arm-none-eabi	2.35.2-2+14+b2
-	gcc-arm-none-eabi 	15:8-2019-q3-1+b1
-	libnewlib-arm-none-eabi	3.3.0-1
-	gdb-multiarch 		10.1-2
-
-Or else, see https://launchpad.net/gcc-arm-embedded for preparation of
-GNU Toolchain for 'arm-none-eabi' target.
-
-Change directory to `src':
-
-  $ cd gnuk-VERSION/src
-
-Then, run `configure':
-
-  $ ./configure --vidpid=<VID:PID>
-
-Here, you need to specify USB vendor ID and product ID.  For FSIJ's,
-it's: --vidpid=234b:0000 .  Please read section 'USB vendor ID and
-product ID' above.
-
-
-Then, type:
-
-  $ make
-
-Then, we will have "gnuk.elf" under src/build directory.
-
-If you are not the authorized vendor, please never distribute this
-file of "gnuk.elf", which includes VID:PID in the image.  If you would
-like to distribute the image (for example, to check if it's
-reproducible or not), the file "gnuk-no-vidpid.elf" is the one with no
-VID:PID.
-
-
-How to install
-==============
-
-Olimex STM32-H103 board
------------------------
-
-If you are using Olimex JTAG-Tiny, type following to invoke OpenOCD
-and write "gnuk.elf" to Flash ROM:
-
-  $ openocd -f interface/ftdi/olimex-jtag-tiny.cfg \
-            -f board/olimex_stm32_h103.cfg \
-            -c "program build/gnuk.elf verify reset exit"
-
-Command invocation is assumed in src/ directory.
-
-
-Flying Stone Tiny 01
---------------------
-
-If you are using Flying Stone Tiny 01, you need a SWD writer.
-
-OpenOCD 0.9.0 now supports ST-Link/V2.  We can use it like:
-
-  $ openocd -f interface/stlink-v2.cfg -f target/stm32f1x.cfg \
-            -c "program build/gnuk.elf verify reset exit"
-
-
-STBee
------
-
-Note that this is only for your experiment; Your private key materials
-on the board can be accessed by DfuSe.
-
-Reset the board with "USER" switch pushed.  Type following to write
-to flash:
-
-  # cd ../tool
-  # ./dfuse.py ../src/build/gnuk.hex
-
-Then, reset the board.
-
-
-How to protect flash ROM
-========================
-
-To protect, invoke OpenOCD like (for FST-01):
-
-  $ openocd -f interface/stlink-v2.cfg -f target/stm32f1x.cfg \
-            -c init -c "reset halt" -c "stm32f1x lock 0" -c reset -c exit
-
-After power-off / power-on sequence, the contents of flash ROM cannot
-be accessible from JTAG debugger.
-
-Unprotecting is:
-
-  $ openocd -f interface/stlink-v2.cfg -f target/stm32f1x.cfg \
-            -c init -c "reset halt" -c "stm32f1x unlock 0" -c reset -c exit
-
-Upon unprotection, flash is erased.
-
-Note that it would be still possible for some implementation of DfuSe
-to access the contents, even if it's protected.  If you really want to
-protect, killing DfuSe and accessing by JTAG debugger is recommended.
-
-
-(Optional) Configure serial number and X.509 certificate
-========================================================
-
-This is completely optional.
-
-For this procedure, you need python and pyscard (python-pyscard
-package in Debian) or PyUSB (python-usb package in Debian).
-
-(1) [pyscard] Stop scdaemon
-    [PyUSB] Stop the pcsc daemon.
-
-If scdaemon is running, please kill it, or you will get "Smartcard
-Exception" by "Sharing violation".
-
-  $ gpg-connect-agent "SCD KILLSCD" "SCD BYE" /bye
-
-In case of PyUSB tool, you need to stop pcscd.
-
-  # systemctl stop pcscd
-
-
-(2) [Optional] Write fixed serial number
-
-If you use fixed serial number in the file 'GNUK_SERIAL_NUMBER', you can do:
-
-  $ EMAIL=<YOUR-EMAIL-ADDRESS> ../tool/gnuk_put_binary_usb.py -s ../GNUK_SERIAL_NUMBER
-  Writing serial number
-  ...
-
-(3) [Optional] Write card holder certificate
-
-If you have card holder certificate binary file, you can do:
-
-  $ ../tool/gnuk_put_binary_usb.py ../../<YOUR-CERTIFICATE>.bin
-  ../../<YOUR-CERTIFICATE>.bin: <LENGTH-OF-YOUR-CERTIFICATE>
-  Updating card holder certificate
-  ...
-
-
-How to run
-==========
-
-Debug enabled
--------------
-
-If you compiled with --enable-debug option, Gnuk has two interfaces
-(one is CCID/ICCD device and another is virtual COM port).  Open
-virtual COM port by:
-
-  $ cu -l /dev/ttyACM0
-
-and you will see debug output of Gnuk.
-
-
-Testing Gnuk
-------------
-
-Type following command to see Gnuk runs:
-
-  $ gpg --card-status
-
-
-Besides, there is a functionality test under tests/ directory.  See
-tests/README.
-
-
-Personalize the Token, import keys, and change the password
------------------------------------------------------------
-
-You can personalize the token, putting your information like: Name,
-Login name, Sex, Languages, URL.  To do so, GnuPG command is:
-
-  $ gpg --card-edit
-
-Note that the factory setting of user password is "123456" and admin
-password is "12345678" as the specification.
-
-It is recommended to create your keys on your computer, and import
-them to Gnuk Token.  After you create your keys (they must be 2048-bit
-RSA), you can import them.
-
-Gnuk supports key generation, but this feature is young and should be
-considered experimental.
-
-For detail, please see documentation under doc/.  You can see the HTML
-version at: https://www.fsij.org/doc-gnuk/
-
-
-How to debug
-============
-
-We can use GDB.
-
-  $ arm-none-eabi-gdb gnuk.elf
-
-
-Inside GDB, we can connect OpenOCD by:
-
-  (gdb) target remote localhost:3333
-
-or
-
-  (gdb) target extended-remote localhost:3333
-
-
-You can see the output of PCSCD:
-
-  # /etc/init.d/pcscd stop
-  # LIBCCID_ifdLogLevel=7 /usr/sbin/pcscd --debug --foreground
-
-
-You can observe the traffic of USB using "usbmon".  See the file:
-linux/Documentation/usb/usbmon.txt
-
-
-Firmware update
-===============
-
-See doc/note/firmware-update.
-
-
-Git Repositories
-================
-
-Please use: https://salsa.debian.org/gnuk-team/gnuk/
-
-You can get it by:
- 
-    $ git clone https://salsa.debian.org/gnuk-team/gnuk/gnuk.git
-
-It's also available at: www.gniibe.org
-You can browse at: https://git.gniibe.org/cgit/gnuk/gnuk.git/
-
-I put Chopstx as a submodule of Git.  Please do this:
-
-    $ git submodule update --init
-
-
-Information on the Web
-======================
-
-For more information, please visit: https://www.fsij.org/gnuk/
-
-Please see the FST-01 support pages:
-
-    https://www.gniibe.org/category/fst-01.html
-
-Please consider to join Gnuk-users mailing list:
-
-    https://lists.gnupg.org/mailman/listinfo/gnuk-users
-
-
-
-Your Contributions
-==================
-
-FSIJ welcomes your contributions.  Please assign your copyright
-to FSIJ (if possible), as I do.
-
-
-Foot note
-==========
-
-* NUK(R) is a registered trademark owend by MAPA GmbH, Germany.
--- 

README.md

@@ -0,0 +1,138 @@
+***Note:*** *This fork of Gnuk fixes some compiling bugs and focuses on using the "ST-Link V2" clone hardware.*
+
+Here is the link to the original project: <http://git.gniibe.org/cgit/gnuk/gnuk.git/>
+
+What's Gnuk?
+============
+Gnuk is an implementation of a USB cryptographic security token that supports the OpenPGP card protocol version 2. It runs on a STM32F103 processor (and its compatible). In short it allows one to convert a cheap $2 "ST-Link V2" clone device into a hardware security token.
+
+It has supports of Ed25519 and X25519 (ECDH on Curve25519). It also has experimental support of ECDSA (on NIST P256 and secp256k1) and ECDH (on NIST P256 and secp256k1).
+
+Gnuk supports the Key Derived Function (KDF) functionality. To use this feature one will need to use GnuPG 2.2.6 or later.
+
+How to build the Gnuk firmware
+==============================
+You will need the GNU toolchain for arm-none-eabi and newlib.
+
+To clone the source code and compile, use the following commands.
+```
+git clone --recursive https://git.spengler.co.za/deon/gnuk.git gnuk
+cd gnuk/src
+./configure --vidpid=1337:0010
+make
+```
+
+Then, you will have "gnuk.bin" under src/build directory.
+
+***Please read section 'USB vendor ID and product ID' below.***
+
+How to flash the Gnuk firmware
+==============================
+In order to flash the firmware ensure that you have openocd installed.
+
+Execute openocd and connect with telnet
+```
+openocd -f ../misc/stm32f103.cfg
+telnet localhost 4444
+```
+
+Use the following commands to unlock, flash the firmware and lock the device again.
+```
+reset halt
+stm32f1x unlock 0
+reset halt
+flash write_bank 0 ./build/gnuk.bin 0
+stm32f1x lock 0
+reset halt
+```
+
+How to reflash the ST-LINK
+==========================
+To reflash the ST-LINK, connect the device to a programmer as before while keeping pins 7 and 8 shorted. While the LED is blinking, run openocd. Once it’s running (i.e. it doesn’t show any errors), you can unshort the pins.
+
+Then use the following to unlock and reflash.
+```
+reset halt
+stm32f1x unlock 0
+reset halt
+stm32f1x mass_erase 0
+flash write_bank 0 ./build/gnuk.bin 0
+stm32f1x lock 0
+reset halt
+```
+
+***Note: That reprograming will wipe the flash memory and you will lose all key's that was on the device.***
+
+Testing Gnuk
+============
+Type following command to see if GnuPG detects the Gnuk token.
+```
+gpg --card-status
+```
+
+***See tests/README for functionality tests.***
+
+Personalize the Token, import keys, and change the password
+===========================================================
+You can personalize your token by putting in your information like: Name, Login and Language.
+
+The KDF setting needs to be enabled before any keys are imported into the Gnuk token. Once a key has been imported the KDF setting can't be changed until the token has been reset.
+
+***Note:*** That the factory user password is "123456" and admin password is "12345678". It is recommended to create your keys on your computer, and import them into the token. Gnuk supports key generation, but this feature is young and should be considered experimental.
+
+To configure your Gnuk token use the following command.
+```
+gpg --card-edit
+```
+
+For further details, please see documentation under doc.
+
+Firmware update
+===============
+See doc/note/firmware-update.
+
+How to debug
+============
+Ensure that you have arm-none-eabi-gdb installed and then you must configure and compile the Gnuk firmware with --enable-debug option. After flashing Gnuk debug firmware one will see two interfaces, one is CCID/ICCD device and the another is a virtual COM port.
+
+Open the virtual COM with the following command:
+```
+picocom /dev/ttyACM0
+```
+and you will see debug output of Gnuk firmware.
+
+You can now use GDB with the following command.
+```
+arm-none-eabi-gdb src/build/gnuk.elf
+```
+
+Inside GDB, we can connect OpenOCD by:
+```
+(gdb) target remote localhost:3333
+```
+
+You can see the output of PCSCD with the following command:
+```
+/usr/bin/pcscd --debug --foreground
+```
+
+You can also observe the traffic of the USB interface using "usbmon".
+
+USB vendor ID and product ID (USB device ID)
+============================================
+When you have a vendor ID and assign a product ID for Gnuk, edit the file GNUK_USB_DEVICE_ID and add an entry for yours. In this case, please contact Niibe, so that it is listed to the file in the official release of the source code.
+
+When you are modifing Gnuk and installing the binary to device, you should replace the vendor string and serial number to yours (in the file GNUK_USB_DEVICE_ID and SERIALNO of the script of src/configure), so that users can see it's not by original vendor, and it is modified version.
+
+FSIJ allows you to use USB device ID of FSIJ (234b:0000) for devices with Gnuk under one of following conditions:
+  * For everyone for experimental purpose:
+    - You must not distribute a binary with FSIJ's USB device ID, but must use the binary by yourself only for your experiment. Note that "Distributing binary" includes distributing a device which holds the binary.
+  * For general individuals:
+    - You must use your Gnuk device with a card serial number which is *not* by FSIJ. Easy one would be a card serial number generated by chip unique ID.
+  * For individuals with explicit permission from FSIJ.
+    - You should have an assigned card serial number by FSIJ, please use that number for your device.
+      (There a file 'GNUK_SERIAL_NUMBER' in the official release.)
+
+FSIJ could give companies or business entities "second source manufacturer" license to use USB device ID of FSIJ for devices with unmodified version of Gnuk, provided they support Free Software and respect users' freedom for computing. Please ask FSIJ for the license.
+
+Otherwise, companies which want to distribute Gnuk devices, please use your own USB vendor ID and product ID.  Please replace vendor string and possibly product string to yours, when you modify Gnuk.

THANKS

@@ -1,46 +0,0 @@
-							-*- coding: utf-8 -*-
-
-We would like to express our gratitudes to Werner Koch for GnuPG, and
-Giovanni Di Sirio for ChibiOS/RT.
-
-Gnuk was originally written by NIIBE Yutaka.  People contributed by
-encouraging the development, testing the implementation, suggesting
-improvements, or fixing bugs.  Here is a list of those people.
-
-Aurelien Jarno		aurelien@aurel32.net
-Achim Pietig		achim@pietig.com
-Aidan Thornton
-Anibal Monsalve Salazar	anibal@debian.org
-Andre Zepezauer		andre.zepezauer@student.uni-halle.de
-Anthony Romano		anthony.romano@coreos.com
-Bertrand Jacquin	bertrand@jacquin.bzh
-Clint Adams		clint@softwarefreedom.org
-Daniel Kahn Gillmor	dkg@fifthhorseman.net
-Elliott Mitchell
-Fabio Utzig		utzig@apache.org
-Hironobu SUZUKI		hironobu@h2np.net
-Jan Suhr		jan@suhr.info
-Jeremy Drake		jeremydrake+gnuk@eacceleration.com
-Jonathan McDowell	noodles@earth.li
-Kaz Kojima		kkojima@rr.iij4u.or.jp
-Kenji Rikitake
-Ludovic Rousseau	ludovic.rousseau@free.fr
-Luis Felipe R. Murillo	luisfelipe@ucla.edu
-Mateusz Zalega		mateusz@nitrokey.com
-MATSUU Takuto		matsuu@gentoo.org
-Micah Anderson		micah@debian.org
-NAGAMI Takeshi		nagami-takeshi@aist.go.jp
-Nguyễn Hồng Quân	quannguyen@mbm.vn
-Nico Rikken		nico@nicorikken.eu
-NOKUBI Takatsugu	knok@daionet.gr.jp
-Paul Fertser
-Paul Bakker		polarssl_maintainer@polarssl.org
-Peter Lebbing		peter@digitalbrains.com
-Santiago Ruano Rincón	santiago@debian.org
-Shane Coughlan		scoughlan@openinventionnetwork.com
-Stanislas Bach		sbach@0g.re
-Szczepan Zalega		szczepan@nitrokey.com
-Vasily Evseenko
-Vincent Pelletier	plr.vincent@gmail.com
-Werner Koch		wk@gnupg.org
-Yuji Imai		ug@xcast.jp

VERSION

@@ -1 +1 @@
-release/1.2.18
+release/1.2.20

doc/note/firmware-update-2

@@ -122,7 +122,7 @@ your environment for Gnuk Token.
 How to run the script: ::
 
   $ cd tool
-  $ ./upgrade_by_passwd.py ../regnual/regnual.bin ../src/build/gnuk.bin
+  $ ./upgrade_by_passwd.py
 
 Then, the script on your host PC invoke the steps described above, and
 you will get new version of Gnuk installed.

docker/Dockerfile.check

@@ -1,7 +0,0 @@
-FROM gnuk:latest
-
-LABEL Description="Image for checking gnuK"
-
-RUN apt install -y shellcheck
-RUN apt install -y clang libfindbin-libs-perl
-RUN apt clean

docker/Dockerfile.debug

@@ -1,4 +0,0 @@
-FROM gnuk:latest
-LABEL Description="Image for building gnuK with debugging"
-
-RUN apt install -y gdb-arm-none-eabi && apt clean

docker/Dockerfile.release

@@ -1,6 +0,0 @@
-FROM debian:latest
-LABEL Description="Image for building gnuK"
-
-RUN apt update -y && apt install -y make gcc-arm-none-eabi && apt clean
-
-CMD ["/bin/sh", "-c", "cd /gnuk/src && make clean && ./configure $GNUK_CONFIG && make"]

docker/Makefile

@@ -1,36 +0,0 @@
-ifndef GNUK_CONFIG
-$(warning configuration flags not set in GNUK_CONFIG)
-endif
-
-all: ../chopstx docker-build-release
-	docker run --user=`id -u` --env GNUK_CONFIG --rm -v `pwd`/..:/gnuk/ -t gnuk:latest
-
-clean: docker-build-release
-	docker run --user=`id -u` --env GNUK_CONFIG --rm -v `pwd`/..:/gnuk/ -w /gnuk/src -t gnuk:latest make clean
-
-gdb: docker-build-debug
-	docker run --net host  --rm -i -v `pwd`/..:/gnuk/ -t gnuk:latest-debug arm-none-eabi-gdb /gnuk/src/build/gnuk.elf
-
-shellcheck: docker-build-check
-	docker run --rm -v `pwd`/..:/gnuk/ -t gnuk:latest-check shellcheck /gnuk/src/configure
-
-CHECKERS=security optin nullability core deadcode alpha.core alpha.security
-scan-build: clean docker-build-check
-	docker run --user=`id -u` --rm -v `pwd`/..:/gnuk/ -w /gnuk/src -t gnuk:latest-check scan-build -o scan-build \
-		-analyze-headers -stats $(addprefix -enable-checker ,$(CHECKERS)) -k \
-		--use-cc=arm-none-eabi-gcc \
-		make
-../chopstx:
-	git submodule update --init
-
-docker-build-release:
-	docker build -t gnuk:latest -f `pwd`/Dockerfile.release ..
-
-docker-build-debug: docker-build-release
-	docker build -t gnuk:latest-debug -f `pwd`/Dockerfile.debug ..
-
-docker-build-check: docker-build-release
-	docker build -t gnuk:latest-check -f `pwd`/Dockerfile.check ..
-
-.PHONY: all clean gdb shellcheck scan-build \
-	docker-build-release docker-build-debug docker-build-check

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misc/stm32f103.cfg

@@ -0,0 +1,4 @@
+telnet_port 4444
+source [find interface/stlink.cfg]
+source [find target/stm32f1x.cfg]
+set WORKAREASIZE 0x10000

regnual/regnual.c

@@ -26,12 +26,12 @@
  * ReGNUal
  */
 
+#include <string.h>
+
 #include "types.h"
 #include "usb_lld.h"
 #include "sys.h"
 
-extern void *memset (void *s, int c, size_t n);
-
 extern void set_led (int);
 extern int flash_write (uint32_t dst_addr, const uint8_t *src, size_t len);
 extern int flash_protect (void);

regnual/types.h

@@ -1,5 +1,3 @@
-typedef unsigned long size_t;
-
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int uint32_t;
@@ -7,5 +5,3 @@ typedef unsigned int uintptr_t;
 
 #define TRUE  1
 #define FALSE 0
-
-#define NULL  0

src/configure

@@ -36,17 +36,17 @@ fi
 # Default settings
 help=no
 vidpid=none
-target=FST_01
+target=ST_DONGLE
 with_dfu=default
 debug=no
 sys1_compat=yes
 pinpad=no
 certdo=no
 hid_card_change=no
-factory_reset=no
+factory_reset=yes
 ackbtn_support=yes
 flash_override=""
-kdf_do_required=no
+kdf_do=${kdf_do:-optional}
 # For emulation
 prefix=/usr/local
 exec_prefix='${prefix}'
@@ -219,7 +219,7 @@ if test "$target" = "GNU_LINUX"; then
   emulation="yes"
   cross=""
   mcu="none"
-  kdf_do_required=yes
+  kdf_do=${kdf_do:-required}
   def_emulation="-DGNU_LINUX_EMULATION"
   def_memory_size="-DMEMORY_SIZE=1024"
   enable_hexoutput=""
@@ -341,7 +341,7 @@ else
 fi
 
 # KDF Data Object is always required for GNU/Linux emulation
-if test "$kdf_do_required" = "yes"; then
+if test "$kdf_do" = "required"; then
   KDF_DO_REQUIRED_DEFINE="#define KDF_DO_REQUIRED 1"
   echo "KDF DO is required before key import/generation"
 else
@@ -349,13 +349,13 @@ else
 fi
 
 ### !!! Replace following string of "FSIJ" to yours !!! ####
-SERIALNO="FSIJ-$(sed -e 's%^[^/]*/%%' <../VERSION)-"
+SERIALNO="DTS-$(sed -e 's%^[^/]*/%%' <../VERSION)-"
 
 SERIALNO_STR_LEN_DEFINE="#define SERIALNO_STR_LEN ${#SERIALNO}"
 
 
 if test "$sys1_compat" = "yes"; then
-  CONFIG="$target:dfu=$with_dfu:debug=$debug:pinpad=$pinpad:certdo=$certdo:factory_reset=$factory_reset"
+  CONFIG="$target:dfu=$with_dfu:debug=$debug:pinpad=$pinpad:certdo=$certdo:factory_reset=$factory_reset:kdf=$kdf_do"
 else
   if test "$with_dfu" = "yes"; then
     echo "Common binary can't support DFU loader, don't use --with-dfu." >&2
@@ -365,7 +365,7 @@ else
   FLASH_PAGE_SIZE=2048
   FLASH_SIZE=128
   MEMORY_SIZE=20
-  CONFIG="common:debug=$debug:pinpad=$pinpad:certdo=$certdo:factory_reset=$factory_reset"
+  CONFIG="common:debug=$debug:pinpad=$pinpad:certdo=$certdo:factory_reset=$factory_reset:kdf=$kdf_do"
 fi
 
 output_vid_pid_version () {

src/flash.c

@@ -82,10 +82,10 @@ extern uint8_t *flash_addr_data_storage_start;
 #define FLASH_ADDR_DATA_STORAGE_START flash_addr_data_storage_start
 #else
 /* Linker sets these symbols */
-extern uint8_t _keystore_pool;
+extern uint8_t _keystore_pool[];
-extern uint8_t _data_pool;
+extern uint8_t _data_pool[];
-#define FLASH_ADDR_KEY_STORAGE_START  ((&_keystore_pool))
+#define FLASH_ADDR_KEY_STORAGE_START  ((_keystore_pool))
-#define FLASH_ADDR_DATA_STORAGE_START ((&_data_pool))
+#define FLASH_ADDR_DATA_STORAGE_START ((_data_pool))
 #endif
 
 static int key_available_at (const uint8_t *k, int key_size)

src/gnuk.h

@@ -475,6 +475,6 @@ int pinpad_getline (int msg_code, uint32_t timeout_usec);
 #endif
 
 
-extern uint8_t _regnual_start, __heap_end__[];
+extern uint8_t _regnual_start[], __heap_end__[];
 
 uint8_t * sram_address (uint32_t offset);

src/main.c

@@ -503,8 +503,8 @@ main (int argc, const char *argv[])
 
 #ifdef FLASH_UPGRADE_SUPPORT
   /* Set vector */
-  SCB->VTOR = (uintptr_t)&_regnual_start;
+  SCB->VTOR = (uintptr_t)_regnual_start;
-  entry = calculate_regnual_entry_address (&_regnual_start);
+  entry = calculate_regnual_entry_address (_regnual_start);
 #ifdef DFU_SUPPORT
   {
     /* Use SYS at ORIGIN_REAL instead of the one at ORIGIN */

src/openpgp-do.c

@@ -815,6 +815,8 @@ rw_algorithm_attr (uint16_t tag, int with_tag,
       else if (algo == ALGO_RSA2K && *algo_attr_pp != NULL)
 	{
 	  gpg_reset_algo_attr (kk);
+          /* Read it again, since GC may occur.  */
+          algo_attr_pp = get_algo_attr_pointer (kk);
 	  flash_enum_clear (algo_attr_pp);
 	  if (*algo_attr_pp != NULL)
 	    return 0;
@@ -823,6 +825,10 @@ rw_algorithm_attr (uint16_t tag, int with_tag,
                (*algo_attr_pp != NULL && (*algo_attr_pp)[1] != algo))
 	{
 	  gpg_reset_algo_attr (kk);
+          /* Read it again, since GC may occur.  */
+          algo_attr_pp = get_algo_attr_pointer (kk);
+          if (*algo_attr_pp)
+            flash_enum_clear (algo_attr_pp);
 	  *algo_attr_pp = flash_enum_write (kk_to_nr (kk), algo);
 	  if (*algo_attr_pp == NULL)
 	    return 0;

src/usb-ccid.c

@@ -1929,6 +1929,7 @@ ccid_thread (void *arg)
 	}
       else			/* Timeout */
 	{
+#ifdef ACKBTN_SUPPORT
 	  if (c->timeout_cnt == 7
 	      && c->ccid_state == CCID_STATE_ACK_REQUIRED_1)
 	    {
@@ -1940,6 +1941,7 @@ ccid_thread (void *arg)
 	      goto exec_done;
 	    }
 	  else
+#endif
 	    c->ccid_state = ccid_handle_timeout (c);
 	}
     }

src/usb_ctrl.c

@@ -227,7 +227,7 @@ static const uint8_t lun_table[] = { 0, 0, 0, 0, };
 #endif
 
 #ifdef FLASH_UPGRADE_SUPPORT
-static const uint8_t *const mem_info[] = { &_regnual_start,  __heap_end__, };
+static const uint8_t *const mem_info[] = { _regnual_start,  __heap_end__, };
 #endif
 
 #define USB_FSIJ_GNUK_MEMINFO     0
@@ -284,7 +284,7 @@ usb_setup (struct usb_dev *dev)
 	      if (ccid_get_ccid_state () != CCID_STATE_EXITED)
 		return -1;
 
-	      if (addr < &_regnual_start || addr + arg->len > __heap_end__)
+	      if (addr < _regnual_start || addr + arg->len > __heap_end__)
 		return -1;
 
 	      if (arg->index + arg->len < 256)

tool/gnuk_token.py

@@ -31,6 +31,7 @@ USB_PRODUCT_LIST=[
     { 'vendor' : 0x234b, 'product' : 0x0000 }, # FSIJ Gnuk Token
     { 'vendor' : 0x20a0, 'product' : 0x4211 }, # Nitrokey Start
     { 'vendor' : 0x1209, 'product' : 0x2440 }, # GnuPG e.V.
+    { 'vendor' : 0x1337, 'product' : 0x0010 }, # DTS Gnuk Token
 ]
 
 # USB class, subclass, protocol

tool/stlinkv2.py

@@ -1,4 +1,4 @@
-#! /usr/bin/python
+#! /usr/bin/python3
 
 """
 stlinkv2.py - a tool to control ST-Link/V2

tool/upgrade_by_passwd.py

@@ -131,19 +131,25 @@ if __name__ == '__main__':
     skip_check = False
     while len(sys.argv) > 1:
         option = sys.argv[1]
-        sys.argv.pop(1)
         if option == '-f':      # F for Factory setting
+            sys.argv.pop(1)
             passwd = DEFAULT_PW3
         elif option == '-e':    # E for Enumeration
+            sys.argv.pop(1)
             wait_e = int(sys.argv[1])
             sys.argv.pop(1)
         elif option == '-k':    # K for Key number
+            sys.argv.pop(1)
             keyno = int(sys.argv[1])
             sys.argv.pop(1)
         elif option == '-s':    # S for skip the check of target
+            sys.argv.pop(1)
             skip_check = True
         else:
+            if option[0] == '-':
                 raise ValueError("unknown option", option)
+            else:
+                break
     if not passwd:
         passwd = getpass("Admin password: ")
     if len(sys.argv) > 1: