Changes in version 0.2.4 (2023-08-19)

• Add missing alias for RcppRedis-package to rhiredis.Rd.
• Remove Suggests: rredis which triggers a NOTE nag as it is only on an Additional_repositories .

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Changes in RcppArmadillo version 0.12.6.1.0 (2023-07-26)

• Upgraded to Armadillo release 12.6.1 (Cortisol Retox)
  • faster multiplication of dense vectors by sparse matrices (and vice versa)
  • faster eigs_sym() and eigs_gen()
  • faster conv() and conv2() when using OpenMP
  • added diags() and spdiags() for generating band matrices from set of vectors

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Changes in version 0.1.1 (2023-08-08)

• A simplifcation was applied to the C++ interface glue code (#9 fixing #8)
• The package no longer enforces the C++11 compilation standard (#10)
• An uninitialized memory read has been correct (#11)
• A new function ops has been added (#12)
• Function names no longer start with a dot (#13)
• Arbitrary index columns are now supported (#13)

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Changes in RQuantLib version 0.4.19 (2023-08-07)

• Three calendaring / schedule tests were adjusted for slightly changed values under QuantLib 1.31
• Several checks in the configure script have been updated to reflect current versions of packages.
• Five examples no longer run because, even while extremely short, use of (too many default) threads was seen.

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Changes in version 0.0.7 (2023-07-19)

• Updates, extensions and corrections to calendars from South Korea, Hong Kong, Singapore, India, Taiwan, South Africa, Denmark and Finland from QuantLib 1.31
• Added support for UnitedStates/SOFR calendar

> ## see https://github.com/qlcal/qlcal-r/blob/master/demo/allUScalendars.R
> ## see R/calendars.R in qlcal, we prepend 'UnitedStates/' in makeHol()
> cals <- c("LiborImpact", "NYSE", "GovernmentBond", "NERC", "FederalReserve", "SOFR")
> print(Reduce(cbind, Map(makeHol, cals)))
           LiborImpact NYSE GovernmentBond NERC FederalReserve SOFR
2023-01-02        TRUE TRUE           TRUE TRUE           TRUE TRUE
2023-01-16        TRUE TRUE           TRUE   NA           TRUE TRUE
2023-02-20        TRUE TRUE           TRUE   NA           TRUE TRUE
2023-04-07          NA TRUE             NA   NA             NA TRUE
2023-05-29        TRUE TRUE           TRUE TRUE           TRUE TRUE
2023-06-19        TRUE TRUE           TRUE   NA           TRUE TRUE
2023-07-04        TRUE TRUE           TRUE TRUE           TRUE TRUE
2023-09-04        TRUE TRUE           TRUE TRUE           TRUE TRUE
2023-10-09        TRUE   NA           TRUE   NA           TRUE TRUE
2023-11-10        TRUE   NA             NA   NA             NA   NA
2023-11-23        TRUE TRUE           TRUE TRUE           TRUE TRUE
2023-12-25        TRUE TRUE           TRUE TRUE           TRUE TRUE
> 

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Changes in RcppSpdlog version 0.0.14 (2023-07-09)

• Added new badge to README.md
• Upgraded to upstream releases spdlog 1.12.0

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Changes in version 0.0.21 (2023-07-02)

• The build setup switched from C++11 to C++17 which offers threading support (which remains off by default to ensure consistent results)
• Upstream code was update to Annoy 1.17.3, the switch to an explicit C++ namespace has been accomodated (Dirk in #75)

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Changes in RcppArmadillo version 0.12.4.1.0 (2023-06-17)

• Upgraded to Armadillo release 12.4.1 (Cortisol Profusion Redux)
  • fix bug in SpMat::shed_cols()
  • functions such as .is_finite() and find_nonfinite() will now emit a runtime warning when compiled in fast math mode; such compilation mode disables detection of non-finite values
• Accommodate upcoming change in package Matrix (Mikael Jagan in #417 addressing #415)

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Changes in spdl version 0.0.5 (2023-06-18)

• Add simple aliases init() and log() wrapping setup() but requiring only the logging level argument

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Changes in RcppSpdlog version 0.0.13 (2023-06-17)

• Minor tweak to stopwatch setup avoids pulling in fmt
• No longer set a C++ compilation standard as the default choices by R are sufficient for the package
• Add convenience wrapper log_init omitting first argument to log_setup while preserving the interface from the latter
• Add convenience setup wrappers init and log to API header file spdl.h

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Changes in version 0.1.1 (2023-06-11)

• Added integer overflow example kindly contributed by Greg Jeffries
• Added continuous integration and badges
• Updated package to use symbol registration for compiled code
• Updated and edited DESCRIPTION, README and help pages for current packaging standards
• Expanded README with usage example via r-devel-san Rocker container

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Changes in RcppArmadillo version 0.12.4.0.0 (2023-05-26)

• Upgraded to Armadillo release 12.4.0 (Cortisol Profusion Redux)
  • Added norm2est() for finding fast estimates of matrix 2-norm (spectral norm)
  • Added vecnorm() for obtaining the vector norm of each row or column of a matrix

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Changes in version 0.0.6 (2023-05-24)

• Several calendars (India, Singapore, South Africa, South Korea) updated with post-QuantLib 1.3.0 changes (Sebastian Schmidt in #6)
• Three now-used scheduled files were removed (Dirk in #7))
• A number of non-calendaring files used were synchronised with the current QuantLib repo (Dirk in #8)

> print(Reduce(cbind, Map(makeHol, cals)))
           LiborImpact NYSE GovernmentBond NERC FederalReserve
2023-01-02        TRUE TRUE           TRUE TRUE           TRUE
2023-01-16        TRUE TRUE           TRUE   NA           TRUE
2023-02-20        TRUE TRUE           TRUE   NA           TRUE
2023-04-07          NA TRUE             NA   NA             NA
2023-05-29        TRUE TRUE           TRUE TRUE           TRUE
2023-06-19        TRUE TRUE           TRUE   NA           TRUE
2023-07-04        TRUE TRUE           TRUE TRUE           TRUE
2023-09-04        TRUE TRUE           TRUE TRUE           TRUE
2023-10-09        TRUE   NA           TRUE   NA           TRUE
2023-11-10        TRUE   NA             NA   NA             NA
2023-11-23        TRUE TRUE           TRUE TRUE           TRUE
2023-12-25        TRUE TRUE           TRUE TRUE           TRUE
> 

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Changes in version 0.1.10 (2023-05-14)

• simdjson was upgraded to version 3.1.8 (Dirk in #85).

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Changes in RQuantLib version 0.4.18 (2023-05-01)

• Use of several rgl functions was updated to a new naming scheme in the package (kindly contributed by Duncan Murdoch in #174)
• A default argument is now given for option surface plots
• Changed call from SwaptionVolCube1 to SabrSwaptionVolatilityCube (conditional on using QuantLib 1.30 or later)
• Some other deprecation warnings were tweaked as in QL test file
• Builds for macOS and Windows were updated with more library build (changes kindly contributed by Jeron Ooms in #176 and #175)
• Some remaining throw calls were replace by Rcpp::stop

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• Deterministic Behavior given a set of circumstances, it should behave the same.
• Verifiability and Transparency the method (the source code) should be accessible for understanding (compare scientific method) and its binaries verifiable, i.e., it should be possible to verify that the entity actually follows the intended deterministic method (implying efforts like reproducible builds and bootstrappable builds).
• Accountable the entity should behave the same for everyone, and deviation should be possible prove in a way that is hard to deny, implying efforts such as Certificate Transparency and more generic checksum logs like Sigstore and Sigsum.
• Liberating the tools and documentation should be available as free software to enable you to replace the trusted entity if so desired. An entity that wants to restrict you from being able to replace the trusted entity is vulnerable to corruption and may stop acting trustworthy. This point of view reinforces that open source misses the point; it has become too common to use trademark laws to restrict re-use of open source software (e.g., firefox, chrome, rust).

• Accountable binary software distribution remains unresolved in practice, although we have some software components around (e.g., apt-sigstore and guix git authenticate). What is missing is using them for verification by default and/or to improve the signature process to use trustworthy hardware devices, and committing the signatures to transparency logs.
• Trustworthy hardware to run trustworthy software on remains a challenge, and we owe FSF s Respect Your Freedom credit for raising awareness of this. Many modern devices requires non-free software to work which fails most of the criteria above and are thus inherently untrustworthy.
• Verifying rebuilds of currently published binaries on trustworthy hardware is unresolved.
• Completing a full-source rebuild from a small seed on trustworthy hardware remains, preferably on a platform wildly different than X86 such as Raptor s Talos II.
• We need improved security hardware devices and improved established practices on how to use them. For example, while Gnuk on the FST enable a trustworthy software and hardware solution, the best process for using it that I can think of generate the cryptographic keys on a more complex device. Efforts like Tillitis are inspiring here.

The Substitution Attack

An attacker is able to substitute any component of the device (hardware or software) at any time for any period of time.

Your takeaway should be that devices should be designed to mitigate harmful consequences if any component of the device (hardware or software) is substituted for a malicious component for some period of time, at any time, during the lifespan of that component. Some designs protect better against this attack than other designs, and the threat model can be used to understand which designs are really bad, and which are less so.

Terminology The threat model involves at least one device that is well-behaving and one that is not, and we call these Good Device and Bad Device respectively. The bad device may be the same physical device as the good key, but with some minor software modification or a minor component replaced, but could also be a completely separate physical device. We don t care about that distinction, we just care if a particular device has a malicious component in it or not. I ll use terms like security device , device , hardware key , security co-processor etc interchangeably. From an engineering point of view, malicious here includes unintentional behavior such as software or hardware bugs. It is not possible to differentiate an intentionally malicious device from a well-designed device with a critical bug. Don t attribute to malice what can be adequately explained by stupidity, but don t na vely attribute to stupidity what may be deniable malicious.

What is some period of time ? Some period of time can be any length of time: seconds, minutes, days, weeks, etc. It may also occur at any time: During manufacturing, during transportation to the user, after first usage by the user, or after a couple of months usage by the user. Note that we intentionally consider time-of-manufacturing as a vulnerable phase. Even further, the substitution may occur multiple times. So the Good Key may be replaced with a Bad Key by the attacker for one day, then returned, and later this repeats a month later.

What is harmful consequences ? Since a security key has a fairly well-confined scope and purpose, we can get a fairly good exhaustive list of things that could go wrong. Harmful consequences include:

• Attacker learns any secret keys stored on a Good Key.
• Attacker causes user to trust a public generated by a Bad Key.
• Attacker is able to sign something using a Good Key.
• Attacker learns the PIN code used to unlock a Good Key.
• Attacker learns data that is decrypted by a Good Key.

Thin vs Deep solutions One approach to mitigate many issues arising from device substitution is to have the host (or remote site) require that the device prove that it is the intended unique device before it continues to talk to it. This require an authentication/authorization protocol, which usually involves unique device identity and out-of-band trust anchors. Such trust anchors is often problematic, since a common use-case for security device is to connect it to a host that has never seen the device before. A weaker approach is to have the device prove that it merely belongs to a class of genuine devices from a trusted manufacturer, usually by providing a signature generated by a device-specific private key signed by the device manufacturer. This is weaker since then the user cannot differentiate two different good devices. In both cases, the host (or remote site) would stop talking to the device if it cannot prove that it is the intended key, or at least belongs to a class of known trusted genuine devices. Upon scrutiny, this solution is still vulnerable to a substitution attack, just earlier in the manufacturing chain: how can the process that injects the per-device or per-class identities/secrets know that it is putting them into a good key rather than a malicious device? Consider also the consequences if the cryptographic keys that guarantee that a device is genuine leaks. The model of the thin solution is similar to the old approach to network firewalls: have a filtering firewall that only lets through intended traffic, and then run completely insecure protocols internally such as telnet. The networking world has evolved, and now we have defense in depth: even within strongly firewall ed networks, it is prudent to run for example SSH with publickey-based user authentication even on locally physical trusted networks. This approach requires more thought and adds complexity, since each level has to provide some security checking. I m arguing we need similar defense-in-depth for security devices. Security key designs cannot simply dodge this problem by assuming it is working in a friendly environment where component substitution never occur.

Example: Device authentication using PIN codes To see how this threat model can be applied to reason about security key designs, let s consider a common design. Many security keys uses PIN codes to unlock private key operations, for example on OpenPGP cards that lacks built-in PIN-entry functionality. The software on the computer just sends a PIN code to the device, and the device allows private-key operations if the PIN code was correct. Let s apply the substitution threat model to this design: the attacker replaces the intended good key with a malicious device that saves a copy of the PIN code presented to it, and then gives out error messages. Once the user has entered the PIN code and gotten an error message, presumably temporarily giving up and doing other things, the attacker replaces the device back again. The attacker has learnt the PIN code, and can later use this to perform private-key operations on the good device. This means a good design involves not sending PIN codes in clear, but use a stronger authentication protocol that allows the card to know that the PIN was correct without learning the PIN. This is implemented optionally for many OpenPGP cards today as the key-derivation-function extension. That should be mandatory, and users should not use setups that sends device authentication in the clear, and ultimately security devices should not even include support for that. Compare how I build Gnuk on my PGP card with the kdf_do=required option.

Example: Onboard non-predictable key-generation Many devices offer both onboard key-generation, for example OpenPGP cards that generate a Ed25519 key internally on the devices, or externally where the device imports an externally generated cryptographic key. Let s apply the subsitution threat model to this design: the user wishes to generate a key and trust the public key that came out of that process. The attacker substitutes the device for a malicious device during key-generation, imports the private key into a good device and gives that back to the user. Most of the time except during key generation the user uses a good device but still the attacker succeeded in having the user trust a public key which the attacker knows the private key for. The substitution may be a software modification, and the method to leak the private key to the attacker may be out-of-band signalling. This means a good design never generates key on-board, but imports them from a user-controllable environment. That approach should be mandatory, and users should not use setups that generates private keys on-board, and ultimately security devices should not even include support for that.

Example: Non-predictable randomness-generation Many devices claims to generate random data, often with elaborate design documents explaining how good the randomness is. Let s apply the substitution threat model to this design: the attacker replaces the intended good key with a malicious design that generates (for the attacker) predictable randomness. The user will never be able to detect the difference since the random output is, well, random, and typically not distinguishable from weak randomness. The user cannot know if any cryptographic keys generated by a generator was faulty or not. This means a good design never generates non-predictable randomness on the device. That approach should be mandatory, and users should not use setups that generates non-predictable randomness on the device, and ideally devices should not have this functionality.

Case-Study: Tillitis I have warmed up a bit for this. Tillitis is a new security device with interesting properties, and core to its operation is the Compound Device Identifier (CDI), essentially your Ed25519 private key (used for SSH etc) is derived from the CDI that is computed like this:

cdi = blake2s(UDS, blake2s(device_app), USS)

Let s apply the substitution threat model to this design: Consider someone replacing the Tillitis key with a malicious key during postal delivery of the key to the user, and the replacement device is identical with the real Tillitis key but implements the following key derivation function:

cdi = weakprng(UDS , weakprng(device_app), USS)

Where weakprng is a compromised algorithm that is predictable for the attacker, but still appears random. Everything will work correctly, but the attacker will be able to learn the secrets used by the user, and the user will typically not be able to tell the difference since the CDI is secret and the Ed25519 public key is not self-verifiable.

Conclusion Remember that it is impossible to fully protect against this attack, that s why it is merely a thought experiment, intended to be used during design of these devices. Consider an attacker that never gives you access to a good key and as a user you only ever use a malicious device. There is no way to have good security in this situation. This is not hypothetical, many well-funded organizations do what they can to derive people from having access to trustworthy security devices. Philosophically it does not seem possible to tell if these organizations have succeeded 100% already and there are only bad security devices around where further resistance is futile, but to end on an optimistic note let s assume that there is a non-negligible chance that they haven t succeeded. In these situations, this threat model becomes useful to improve the situation by identifying less good designs, and that s why the design mantra of mitigate harmful consequences is crucial as a takeaway from this. Let s improve the design of security devices that further the security of its users!

Changes in version 0.0.5 (2023-04-19)

• Calendars routines for Australia, Denmark, New Zealand, Turkey and the US have been updated from QuantLib 1.30.
• Support for 'Australia/ASX' has been added.
• Added demo showing all US holidays in current year

> print(Reduce(cbind, Map(makeHol, cals)))
           LiborImpact NYSE GovernmentBond NERC FederalReserve
2023-01-02        TRUE TRUE           TRUE TRUE           TRUE
2023-01-16        TRUE TRUE           TRUE   NA           TRUE
2023-02-20        TRUE TRUE           TRUE   NA           TRUE
2023-04-07          NA TRUE             NA   NA             NA
2023-05-29        TRUE TRUE           TRUE TRUE           TRUE
2023-06-19        TRUE TRUE           TRUE   NA           TRUE
2023-07-04        TRUE TRUE           TRUE TRUE           TRUE
2023-09-04        TRUE TRUE           TRUE TRUE           TRUE
2023-10-09        TRUE   NA           TRUE   NA           TRUE
2023-11-10        TRUE   NA             NA   NA             NA
2023-11-23        TRUE TRUE           TRUE TRUE           TRUE
2023-12-25        TRUE TRUE           TRUE TRUE           TRUE
> 

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Changes in RcppArmadillo version 0.12.2.0.0 (2023-04-04)

• Upgraded to Armadillo release 12.2.0 (Cortisol Profusion Deluxe)
  • more efficient use of FFTW3 by fft() and ifft()
  • faster in-place element-wise multiplication of sparse matrices by dense matrices
  • added spsolve_factoriser class to allow reuse of sparse matrix factorisation for solving systems of linear equations

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Nitrokey Start

$ sha256sum python3-pip*
ded6b3867a4a4cbaff0940cab366975d6aeecc76b9f2d2efa3deceb062668b1c  python3-pip_22.0.2+dfsg-1ubuntu0.2_all.deb
e1561575130c41dc3309023a345de337e84b4b04c21c74db57f599e267114325  python3-pip-whl_22.0.2+dfsg-1ubuntu0.2_all.deb
$ doas dpkg -i python3-pip*
...
$ doas apt install -f
...
$

jas@kaka:~$ pip3 install --user pynitrokey
Collecting pynitrokey
  Downloading pynitrokey-0.4.34-py3-none-any.whl (572 kB)
Collecting frozendict~=2.3.4
  Downloading frozendict-2.3.5-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (113 kB)
Requirement already satisfied: click<9,>=8.0.0 in /usr/lib/python3/dist-packages (from pynitrokey) (8.0.3)
Collecting ecdsa
  Downloading ecdsa-0.18.0-py2.py3-none-any.whl (142 kB)
Collecting python-dateutil~=2.7.0
  Downloading python_dateutil-2.7.5-py2.py3-none-any.whl (225 kB)
Collecting fido2<2,>=1.1.0
  Downloading fido2-1.1.0-py3-none-any.whl (201 kB)
Collecting tlv8
  Downloading tlv8-0.10.0.tar.gz (16 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: certifi>=14.5.14 in /usr/lib/python3/dist-packages (from pynitrokey) (2020.6.20)
Requirement already satisfied: pyusb in /usr/lib/python3/dist-packages (from pynitrokey) (1.2.1.post1)
Collecting urllib3~=1.26.7
  Downloading urllib3-1.26.15-py2.py3-none-any.whl (140 kB)
Collecting spsdk<1.8.0,>=1.7.0
  Downloading spsdk-1.7.1-py3-none-any.whl (684 kB)
Collecting typing_extensions~=4.3.0
  Downloading typing_extensions-4.3.0-py3-none-any.whl (25 kB)
Requirement already satisfied: cryptography<37,>=3.4.4 in /usr/lib/python3/dist-packages (from pynitrokey) (3.4.8)
Collecting intelhex
  Downloading intelhex-2.3.0-py2.py3-none-any.whl (50 kB)
Collecting nkdfu
  Downloading nkdfu-0.2-py3-none-any.whl (16 kB)
Requirement already satisfied: requests in /usr/lib/python3/dist-packages (from pynitrokey) (2.25.1)
Collecting tqdm
  Downloading tqdm-4.65.0-py3-none-any.whl (77 kB)
Collecting nrfutil<7,>=6.1.4
  Downloading nrfutil-6.1.7.tar.gz (845 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: cffi in /usr/lib/python3/dist-packages (from pynitrokey) (1.15.0)
Collecting crcmod
  Downloading crcmod-1.7.tar.gz (89 kB)
  Preparing metadata (setup.py) ... done
Collecting libusb1==1.9.3
  Downloading libusb1-1.9.3-py3-none-any.whl (60 kB)
Collecting pc_ble_driver_py>=0.16.4
  Downloading pc_ble_driver_py-0.17.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (2.9 MB)
Collecting piccata
  Downloading piccata-2.0.3-py3-none-any.whl (21 kB)
Collecting protobuf<4.0.0,>=3.17.3
  Downloading protobuf-3.20.3-cp310-cp310-manylinux_2_12_x86_64.manylinux2010_x86_64.whl (1.1 MB)
Collecting pyserial
  Downloading pyserial-3.5-py2.py3-none-any.whl (90 kB)
Collecting pyspinel>=1.0.0a3
  Downloading pyspinel-1.0.3.tar.gz (58 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: pyyaml in /usr/lib/python3/dist-packages (from nrfutil<7,>=6.1.4->pynitrokey) (5.4.1)
Requirement already satisfied: six>=1.5 in /usr/lib/python3/dist-packages (from python-dateutil~=2.7.0->pynitrokey) (1.16.0)
Collecting pylink-square<0.11.9,>=0.8.2
  Downloading pylink_square-0.11.1-py2.py3-none-any.whl (78 kB)
Collecting jinja2<3.1,>=2.11
  Downloading Jinja2-3.0.3-py3-none-any.whl (133 kB)
Collecting bincopy<17.11,>=17.10.2
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Collecting fastjsonschema>=2.15.1
  Downloading fastjsonschema-2.16.3-py3-none-any.whl (23 kB)
Collecting astunparse<2,>=1.6
  Downloading astunparse-1.6.3-py2.py3-none-any.whl (12 kB)
Collecting oscrypto~=1.2
  Downloading oscrypto-1.3.0-py2.py3-none-any.whl (194 kB)
Collecting deepmerge==0.3.0
  Downloading deepmerge-0.3.0-py2.py3-none-any.whl (7.6 kB)
Collecting pyocd<=0.31.0,>=0.28.3
  Downloading pyocd-0.31.0-py3-none-any.whl (12.5 MB)
Collecting click-option-group<0.6,>=0.3.0
  Downloading click_option_group-0.5.5-py3-none-any.whl (12 kB)
Collecting pycryptodome<4,>=3.9.3
  Downloading pycryptodome-3.17-cp35-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (2.1 MB)
Collecting pyocd-pemicro<1.2.0,>=1.1.1
  Downloading pyocd_pemicro-1.1.5-py3-none-any.whl (9.0 kB)
Requirement already satisfied: colorama<1,>=0.4.4 in /usr/lib/python3/dist-packages (from spsdk<1.8.0,>=1.7.0->pynitrokey) (0.4.4)
Collecting commentjson<1,>=0.9
  Downloading commentjson-0.9.0.tar.gz (8.7 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: asn1crypto<2,>=1.2 in /usr/lib/python3/dist-packages (from spsdk<1.8.0,>=1.7.0->pynitrokey) (1.4.0)
Collecting pypemicro<0.2.0,>=0.1.9
  Downloading pypemicro-0.1.11-py3-none-any.whl (5.7 MB)
Collecting libusbsio>=2.1.11
  Downloading libusbsio-2.1.11-py3-none-any.whl (247 kB)
Collecting sly==0.4
  Downloading sly-0.4.tar.gz (60 kB)
  Preparing metadata (setup.py) ... done
Collecting ruamel.yaml<0.18.0,>=0.17
  Downloading ruamel.yaml-0.17.21-py3-none-any.whl (109 kB)
Collecting cmsis-pack-manager<0.3.0
  Downloading cmsis_pack_manager-0.2.10-py2.py3-none-manylinux1_x86_64.whl (25.1 MB)
Collecting click-command-tree==1.1.0
  Downloading click_command_tree-1.1.0-py3-none-any.whl (3.6 kB)
Requirement already satisfied: bitstring<3.2,>=3.1 in /usr/lib/python3/dist-packages (from spsdk<1.8.0,>=1.7.0->pynitrokey) (3.1.7)
Collecting hexdump~=3.3
  Downloading hexdump-3.3.zip (12 kB)
  Preparing metadata (setup.py) ... done
Collecting fire
  Downloading fire-0.5.0.tar.gz (88 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: wheel<1.0,>=0.23.0 in /usr/lib/python3/dist-packages (from astunparse<2,>=1.6->spsdk<1.8.0,>=1.7.0->pynitrokey) (0.37.1)
Collecting humanfriendly
  Downloading humanfriendly-10.0-py2.py3-none-any.whl (86 kB)
Collecting argparse-addons>=0.4.0
  Downloading argparse_addons-0.12.0-py3-none-any.whl (3.3 kB)
Collecting pyelftools
  Downloading pyelftools-0.29-py2.py3-none-any.whl (174 kB)
Collecting milksnake>=0.1.2
  Downloading milksnake-0.1.5-py2.py3-none-any.whl (9.6 kB)
Requirement already satisfied: appdirs>=1.4 in /usr/lib/python3/dist-packages (from cmsis-pack-manager<0.3.0->spsdk<1.8.0,>=1.7.0->pynitrokey) (1.4.4)
Collecting lark-parser<0.8.0,>=0.7.1
  Downloading lark-parser-0.7.8.tar.gz (276 kB)
  Preparing metadata (setup.py) ... done
Requirement already satisfied: MarkupSafe>=2.0 in /usr/lib/python3/dist-packages (from jinja2<3.1,>=2.11->spsdk<1.8.0,>=1.7.0->pynitrokey) (2.0.1)
Collecting asn1crypto<2,>=1.2
  Downloading asn1crypto-1.5.1-py2.py3-none-any.whl (105 kB)
Collecting wrapt
  Downloading wrapt-1.15.0-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl (78 kB)
Collecting future
  Downloading future-0.18.3.tar.gz (840 kB)
  Preparing metadata (setup.py) ... done
Collecting psutil>=5.2.2
  Downloading psutil-5.9.4-cp36-abi3-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl (280 kB)
Collecting capstone<5.0,>=4.0
  Downloading capstone-4.0.2-py2.py3-none-manylinux1_x86_64.whl (2.1 MB)
Collecting naturalsort<2.0,>=1.5
  Downloading naturalsort-1.5.1.tar.gz (7.4 kB)
  Preparing metadata (setup.py) ... done
Collecting prettytable<3.0,>=2.0
  Downloading prettytable-2.5.0-py3-none-any.whl (24 kB)
Collecting intervaltree<4.0,>=3.0.2
  Downloading intervaltree-3.1.0.tar.gz (32 kB)
  Preparing metadata (setup.py) ... done
Collecting ruamel.yaml.clib>=0.2.6
  Downloading ruamel.yaml.clib-0.2.7-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_24_x86_64.whl (485 kB)
Collecting termcolor
  Downloading termcolor-2.2.0-py3-none-any.whl (6.6 kB)
Collecting sortedcontainers<3.0,>=2.0
  Downloading sortedcontainers-2.4.0-py2.py3-none-any.whl (29 kB)
Requirement already satisfied: wcwidth in /usr/lib/python3/dist-packages (from prettytable<3.0,>=2.0->pyocd<=0.31.0,>=0.28.3->spsdk<1.8.0,>=1.7.0->pynitrokey) (0.2.5)
Building wheels for collected packages: nrfutil, crcmod, sly, tlv8, commentjson, hexdump, pyspinel, fire, intervaltree, lark-parser, naturalsort, future
  Building wheel for nrfutil (setup.py) ... done
  Created wheel for nrfutil: filename=nrfutil-6.1.7-py3-none-any.whl size=898520 sha256=de6f8803f51d6c26d24dc7df6292064a468ff3f389d73370433fde5582b84a10
  Stored in directory: /home/jas/.cache/pip/wheels/39/2b/9b/98ab2dd716da746290e6728bdb557b14c1c9a54cb9ed86e13b
  Building wheel for crcmod (setup.py) ... done
  Created wheel for crcmod: filename=crcmod-1.7-cp310-cp310-linux_x86_64.whl size=31422 sha256=5149ac56fcbfa0606760eef5220fcedc66be560adf68cf38c604af3ad0e4a8b0
  Stored in directory: /home/jas/.cache/pip/wheels/85/4c/07/72215c529bd59d67e3dac29711d7aba1b692f543c808ba9e86
  Building wheel for sly (setup.py) ... done
  Created wheel for sly: filename=sly-0.4-py3-none-any.whl size=27352 sha256=f614e413918de45c73d1e9a8dca61ca07dc760d9740553400efc234c891f7fde
  Stored in directory: /home/jas/.cache/pip/wheels/a2/23/4a/6a84282a0d2c29f003012dc565b3126e427972e8b8157ea51f
  Building wheel for tlv8 (setup.py) ... done
  Created wheel for tlv8: filename=tlv8-0.10.0-py3-none-any.whl size=11266 sha256=3ec8b3c45977a3addbc66b7b99e1d81b146607c3a269502b9b5651900a0e2d08
  Stored in directory: /home/jas/.cache/pip/wheels/e9/35/86/66a473cc2abb0c7f21ed39c30a3b2219b16bd2cdb4b33cfc2c
  Building wheel for commentjson (setup.py) ... done
  Created wheel for commentjson: filename=commentjson-0.9.0-py3-none-any.whl size=12092 sha256=28b6413132d6d7798a18cf8c76885dc69f676ea763ffcb08775a3c2c43444f4a
  Stored in directory: /home/jas/.cache/pip/wheels/7d/90/23/6358a234ca5b4ec0866d447079b97fedf9883387d1d7d074e5
  Building wheel for hexdump (setup.py) ... done
  Created wheel for hexdump: filename=hexdump-3.3-py3-none-any.whl size=8913 sha256=79dfadd42edbc9acaeac1987464f2df4053784fff18b96408c1309b74fd09f50
  Stored in directory: /home/jas/.cache/pip/wheels/26/28/f7/f47d7ecd9ae44c4457e72c8bb617ef18ab332ee2b2a1047e87
  Building wheel for pyspinel (setup.py) ... done
  Created wheel for pyspinel: filename=pyspinel-1.0.3-py3-none-any.whl size=65033 sha256=01dc27f81f28b4830a0cf2336dc737ef309a1287fcf33f57a8a4c5bed3b5f0a6
  Stored in directory: /home/jas/.cache/pip/wheels/95/ec/4b/6e3e2ee18e7292d26a65659f75d07411a6e69158bb05507590
  Building wheel for fire (setup.py) ... done
  Created wheel for fire: filename=fire-0.5.0-py2.py3-none-any.whl size=116951 sha256=3d288585478c91a6914629eb739ea789828eb2d0267febc7c5390cb24ba153e8
  Stored in directory: /home/jas/.cache/pip/wheels/90/d4/f7/9404e5db0116bd4d43e5666eaa3e70ab53723e1e3ea40c9a95
  Building wheel for intervaltree (setup.py) ... done
  Created wheel for intervaltree: filename=intervaltree-3.1.0-py2.py3-none-any.whl size=26119 sha256=5ff1def22ba883af25c90d90ef7c6518496fcd47dd2cbc53a57ec04cd60dc21d
  Stored in directory: /home/jas/.cache/pip/wheels/fa/80/8c/43488a924a046b733b64de3fac99252674c892a4c3801c0a61
  Building wheel for lark-parser (setup.py) ... done
  Created wheel for lark-parser: filename=lark_parser-0.7.8-py2.py3-none-any.whl size=62527 sha256=3d2ec1d0f926fc2688d40777f7ef93c9986f874169132b1af590b6afc038f4be
  Stored in directory: /home/jas/.cache/pip/wheels/29/30/94/33e8b58318aa05cb1842b365843036e0280af5983abb966b83
  Building wheel for naturalsort (setup.py) ... done
  Created wheel for naturalsort: filename=naturalsort-1.5.1-py3-none-any.whl size=7526 sha256=bdecac4a49f2416924548cae6c124c85d5333e9e61c563232678ed182969d453
  Stored in directory: /home/jas/.cache/pip/wheels/a6/8e/c9/98cfa614fff2979b457fa2d9ad45ec85fa417e7e3e2e43be51
  Building wheel for future (setup.py) ... done
  Created wheel for future: filename=future-0.18.3-py3-none-any.whl size=492037 sha256=57a01e68feca2b5563f5f624141267f399082d2f05f55886f71b5d6e6cf2b02c
  Stored in directory: /home/jas/.cache/pip/wheels/5e/a9/47/f118e66afd12240e4662752cc22cefae5d97275623aa8ef57d
Successfully built nrfutil crcmod sly tlv8 commentjson hexdump pyspinel fire intervaltree lark-parser naturalsort future
Installing collected packages: tlv8, sortedcontainers, sly, pyserial, pyelftools, piccata, naturalsort, libusb1, lark-parser, intelhex, hexdump, fastjsonschema, crcmod, asn1crypto, wrapt, urllib3, typing_extensions, tqdm, termcolor, ruamel.yaml.clib, python-dateutil, pyspinel, pypemicro, pycryptodome, psutil, protobuf, prettytable, oscrypto, milksnake, libusbsio, jinja2, intervaltree, humanfriendly, future, frozendict, fido2, ecdsa, deepmerge, commentjson, click-option-group, click-command-tree, capstone, astunparse, argparse-addons, ruamel.yaml, pyocd-pemicro, pylink-square, pc_ble_driver_py, fire, cmsis-pack-manager, bincopy, pyocd, nrfutil, nkdfu, spsdk, pynitrokey
  WARNING: The script nitropy is installed in '/home/jas/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed argparse-addons-0.12.0 asn1crypto-1.5.1 astunparse-1.6.3 bincopy-17.10.3 capstone-4.0.2 click-command-tree-1.1.0 click-option-group-0.5.5 cmsis-pack-manager-0.2.10 commentjson-0.9.0 crcmod-1.7 deepmerge-0.3.0 ecdsa-0.18.0 fastjsonschema-2.16.3 fido2-1.1.0 fire-0.5.0 frozendict-2.3.5 future-0.18.3 hexdump-3.3 humanfriendly-10.0 intelhex-2.3.0 intervaltree-3.1.0 jinja2-3.0.3 lark-parser-0.7.8 libusb1-1.9.3 libusbsio-2.1.11 milksnake-0.1.5 naturalsort-1.5.1 nkdfu-0.2 nrfutil-6.1.7 oscrypto-1.3.0 pc_ble_driver_py-0.17.0 piccata-2.0.3 prettytable-2.5.0 protobuf-3.20.3 psutil-5.9.4 pycryptodome-3.17 pyelftools-0.29 pylink-square-0.11.1 pynitrokey-0.4.34 pyocd-0.31.0 pyocd-pemicro-1.1.5 pypemicro-0.1.11 pyserial-3.5 pyspinel-1.0.3 python-dateutil-2.7.5 ruamel.yaml-0.17.21 ruamel.yaml.clib-0.2.7 sly-0.4 sortedcontainers-2.4.0 spsdk-1.7.1 termcolor-2.2.0 tlv8-0.10.0 tqdm-4.65.0 typing_extensions-4.3.0 urllib3-1.26.15 wrapt-1.15.0
jas@kaka:~$

jas@kaka:~$ PATH=$PATH:/home/jas/.local/bin
jas@kaka:~$ nitropy start list
Command line tool to interact with Nitrokey devices 0.4.34
:: 'Nitrokey Start' keys:
FSIJ-1.2.15-5D271572: Nitrokey Nitrokey Start (RTM.12.1-RC2-modified)
jas@kaka:~$ nitropy start update
Command line tool to interact with Nitrokey devices 0.4.34
Nitrokey Start firmware update tool
Platform: Linux-5.15.0-67-generic-x86_64-with-glibc2.35
System: Linux, is_linux: True
Python: 3.10.6
Saving run log to: /tmp/nitropy.log.gc5753a8
Admin PIN: 
Firmware data to be used:
- FirmwareType.REGNUAL: 4408, hash: ...b'72a30389' valid (from ...built/RTM.13/regnual.bin)
- FirmwareType.GNUK: 129024, hash: ...b'25a4289b' valid (from ...prebuilt/RTM.13/gnuk.bin)
Currently connected device strings:
Device: 
    Vendor: Nitrokey
   Product: Nitrokey Start
    Serial: FSIJ-1.2.15-5D271572
  Revision: RTM.12.1-RC2-modified
    Config: *:*:8e82
       Sys: 3.0
     Board: NITROKEY-START-G
initial device strings: [ 'name': '', 'Vendor': 'Nitrokey', 'Product': 'Nitrokey Start', 'Serial': 'FSIJ-1.2.15-5D271572', 'Revision': 'RTM.12.1-RC2-modified', 'Config': '*:*:8e82', 'Sys': '3.0', 'Board': 'NITROKEY-START-G' ]
Please note:
- Latest firmware available is: 
  RTM.13 (published: 2022-12-08T10:59:11Z)
- provided firmware: None
- all data will be removed from the device!
- do not interrupt update process - the device may not run properly!
- the process should not take more than 1 minute
Do you want to continue? [yes/no]: yes
...
Starting bootloader upload procedure
Device: Nitrokey Start FSIJ-1.2.15-5D271572
Connected to the device
Running update!
Do NOT remove the device from the USB slot, until further notice
Downloading flash upgrade program...
Executing flash upgrade...
Waiting for device to appear:
  Wait 20 seconds.....
Downloading the program
Protecting device
Finish flashing
Resetting device
Update procedure finished. Device could be removed from USB slot.
Currently connected device strings (after upgrade):
Device: 
    Vendor: Nitrokey
   Product: Nitrokey Start
    Serial: FSIJ-1.2.19-5D271572
  Revision: RTM.13
    Config: *:*:8e82
       Sys: 3.0
     Board: NITROKEY-START-G
device can now be safely removed from the USB slot
final device strings: [ 'name': '', 'Vendor': 'Nitrokey', 'Product': 'Nitrokey Start', 'Serial': 'FSIJ-1.2.19-5D271572', 'Revision': 'RTM.13', 'Config': '*:*:8e82', 'Sys': '3.0', 'Board': 'NITROKEY-START-G' ]
finishing session 2023-03-16 21:49:07.371291
Log saved to: /tmp/nitropy.log.gc5753a8
jas@kaka:~$ 
jas@kaka:~$ nitropy start list
Command line tool to interact with Nitrokey devices 0.4.34
:: 'Nitrokey Start' keys:
FSIJ-1.2.19-5D271572: Nitrokey Nitrokey Start (RTM.13)
jas@kaka:~$ 

jas@kaka:~$ gpg-connect-agent "SCD KILLSCD" "SCD BYE" /bye
OK
ERR 67125247 Slut p  fil <GPG Agent>
jas@kaka:~$ ps auxww grep -e pcsc -e scd
jas        11651  0.0  0.0   3468  1672 pts/0    R+   21:54   0:00 grep --color=auto -e pcsc -e scd
jas@kaka:~$ gpg --card-edit
Reader ...........: 20A0:4211:FSIJ-1.2.19-5D271572:0
Application ID ...: D276000124010200FFFE5D2715720000
Application type .: OpenPGP
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 5D271572
Name of cardholder: [not set]
Language prefs ...: [not set]
Salutation .......: 
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: forced
Key attributes ...: rsa2048 rsa2048 rsa2048
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 0
KDF setting ......: off
Signature key ....: [none]
Encryption key....: [none]
Authentication key: [none]
General key info..: [none]
gpg/card> admin
Admin commands are allowed
gpg/card> kdf-setup
gpg/card> passwd
gpg: OpenPGP card no. D276000124010200FFFE5D2715720000 detected
1 - change PIN
2 - unblock PIN
3 - change Admin PIN
4 - set the Reset Code
Q - quit
Your selection? 3
PIN changed.
1 - change PIN
2 - unblock PIN
3 - change Admin PIN
4 - set the Reset Code
Q - quit
Your selection? q
gpg/card> name
Cardholder's surname: Josefsson
Cardholder's given name: Simon
gpg/card> lang
Language preferences: sv
gpg/card> sex
Salutation (M = Mr., F = Ms., or space): m
gpg/card> login
Login data (account name): jas
gpg/card> url
URL to retrieve public key: https://josefsson.org/key-20190320.txt
gpg/card> forcesig
gpg/card> key-attr
Changing card key attribute for: Signature key
Please select what kind of key you want:
   (1) RSA
   (2) ECC
Your selection? 2
Please select which elliptic curve you want:
   (1) Curve 25519
   (4) NIST P-384
Your selection? 1
The card will now be re-configured to generate a key of type: ed25519
Note: There is no guarantee that the card supports the requested size.
      If the key generation does not succeed, please check the
      documentation of your card to see what sizes are allowed.
Changing card key attribute for: Encryption key
Please select what kind of key you want:
   (1) RSA
   (2) ECC
Your selection? 2
Please select which elliptic curve you want:
   (1) Curve 25519
   (4) NIST P-384
Your selection? 1
The card will now be re-configured to generate a key of type: cv25519
Changing card key attribute for: Authentication key
Please select what kind of key you want:
   (1) RSA
   (2) ECC
Your selection? 2
Please select which elliptic curve you want:
   (1) Curve 25519
   (4) NIST P-384
Your selection? 1
The card will now be re-configured to generate a key of type: ed25519
gpg/card> 
jas@kaka:~$ gpg --card-edit
Reader ...........: 20A0:4211:FSIJ-1.2.19-5D271572:0
Application ID ...: D276000124010200FFFE5D2715720000
Application type .: OpenPGP
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 5D271572
Name of cardholder: Simon Josefsson
Language prefs ...: sv
Salutation .......: Mr.
URL of public key : https://josefsson.org/key-20190320.txt
Login data .......: jas
Signature PIN ....: not forced
Key attributes ...: ed25519 cv25519 ed25519
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 0
KDF setting ......: on
Signature key ....: [none]
Encryption key....: [none]
Authentication key: [none]
General key info..: [none]
jas@kaka:~$ 

jas@kaka:/media/jas/2c699cbd-b77e-4434-a0d6-0c4965864296$ cp -a gnupghome-backup-masterkey gnupghome-import-nitrokey-5D271572
jas@kaka:/media/jas/2c699cbd-b77e-4434-a0d6-0c4965864296$ gpg --homedir $PWD/gnupghome-import-nitrokey-5D271572 --edit-key B1D2BD1375BECB784CF4F8C4D73CF638C53C06BE
gpg (GnuPG) 2.2.27; Copyright (C) 2021 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Secret key is available.
sec  ed25519/D73CF638C53C06BE
     created: 2019-03-20  expired: 2019-10-22  usage: SC  
     trust: ultimate      validity: expired
[ expired] (1). Simon Josefsson <simon@josefsson.org>
gpg> keytocard
Really move the primary key? (y/N) y
Please select where to store the key:
   (1) Signature key
   (3) Authentication key
Your selection? 1
sec  ed25519/D73CF638C53C06BE
     created: 2019-03-20  expired: 2019-10-22  usage: SC  
     trust: ultimate      validity: expired
[ expired] (1). Simon Josefsson <simon@josefsson.org>
gpg> 
Save changes? (y/N) y
jas@kaka:/media/jas/2c699cbd-b77e-4434-a0d6-0c4965864296$ 

jas@kaka:~$ gpg --card-status
Reader ...........: 20A0:4211:FSIJ-1.2.19-5D271572:0
Application ID ...: D276000124010200FFFE5D2715720000
Application type .: OpenPGP
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 5D271572
Name of cardholder: Simon Josefsson
Language prefs ...: sv
Salutation .......: Mr.
URL of public key : https://josefsson.org/key-20190320.txt
Login data .......: jas
Signature PIN ....: not forced
Key attributes ...: ed25519 cv25519 ed25519
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 1
KDF setting ......: on
Signature key ....: B1D2 BD13 75BE CB78 4CF4  F8C4 D73C F638 C53C 06BE
      created ....: 2019-03-20 23:37:24
Encryption key....: [none]
Authentication key: [none]
General key info..: pub  ed25519/D73CF638C53C06BE 2019-03-20 Simon Josefsson <simon@josefsson.org>
sec>  ed25519/D73CF638C53C06BE  created: 2019-03-20  expires: 2023-09-19
                                card-no: FFFE 5D271572
ssb>  ed25519/80260EE8A9B92B2B  created: 2019-03-20  expires: 2023-09-19
                                card-no: FFFE 42315277
ssb>  ed25519/51722B08FE4745A2  created: 2019-03-20  expires: 2023-09-19
                                card-no: FFFE 42315277
ssb>  cv25519/02923D7EE76EBD60  created: 2019-03-20  expires: 2023-09-19
                                card-no: FFFE 42315277
jas@kaka:~$ echo foo gpg -a --sign gpg --verify
gpg: Signature made Thu Mar 16 22:11:02 2023 CET
gpg:                using EDDSA key B1D2BD1375BECB784CF4F8C4D73CF638C53C06BE
gpg: Good signature from "Simon Josefsson <simon@josefsson.org>" [ultimate]
jas@kaka:~$ 

jas@kaka:~$ gpg --locate-external-keys aheinecke@gnupg.com
gpg: key 1FDF723CF462B6B1: public key "Andre Heinecke <aheinecke@gnupg.com>" imported
gpg: Total number processed: 1
gpg:               imported: 1
gpg: marginals needed: 3  completes needed: 1  trust model: pgp
gpg: depth: 0  valid:   2  signed:   7  trust: 0-, 0q, 0n, 0m, 0f, 2u
gpg: depth: 1  valid:   7  signed:  64  trust: 7-, 0q, 0n, 0m, 0f, 0u
gpg: next trustdb check due at 2023-05-26
pub   rsa3072 2015-12-08 [SC] [expires: 2025-12-05]
      94A5C9A03C2FE5CA3B095D8E1FDF723CF462B6B1
uid           [ unknown] Andre Heinecke <aheinecke@gnupg.com>
sub   ed25519 2017-02-13 [S]
sub   ed25519 2017-02-13 [A]
sub   rsa3072 2015-12-08 [E] [expires: 2025-12-05]
sub   rsa3072 2015-12-08 [A] [expires: 2025-12-05]
jas@kaka:~$ gpg --edit-key "94A5C9A03C2FE5CA3B095D8E1FDF723CF462B6B1"
gpg (GnuPG) 2.2.27; Copyright (C) 2021 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
pub  rsa3072/1FDF723CF462B6B1
     created: 2015-12-08  expires: 2025-12-05  usage: SC  
     trust: unknown       validity: unknown
sub  ed25519/2978E9D40CBABA5C
     created: 2017-02-13  expires: never       usage: S   
sub  ed25519/DC74D901C8E2DD47
     created: 2017-02-13  expires: never       usage: A   
The following key was revoked on 2017-02-23 by RSA key 1FDF723CF462B6B1 Andre Heinecke <aheinecke@gnupg.com>
sub  cv25519/1FFE3151683260AB
     created: 2017-02-13  revoked: 2017-02-23  usage: E   
sub  rsa3072/8CC999BDAA45C71F
     created: 2015-12-08  expires: 2025-12-05  usage: E   
sub  rsa3072/6304A4B539CE444A
     created: 2015-12-08  expires: 2025-12-05  usage: A   
[ unknown] (1). Andre Heinecke <aheinecke@gnupg.com>
gpg> sign
pub  rsa3072/1FDF723CF462B6B1
     created: 2015-12-08  expires: 2025-12-05  usage: SC  
     trust: unknown       validity: unknown
 Primary key fingerprint: 94A5 C9A0 3C2F E5CA 3B09  5D8E 1FDF 723C F462 B6B1
     Andre Heinecke <aheinecke@gnupg.com>
This key is due to expire on 2025-12-05.
Are you sure that you want to sign this key with your
key "Simon Josefsson <simon@josefsson.org>" (D73CF638C53C06BE)
Really sign? (y/N) y
gpg> quit
Save changes? (y/N) y
jas@kaka:~$