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jonelo/README.md

Hi there 👋

About me

Welcome. I am Johann N. Löfflmann from Munich, Germany. My first computer was a C64. I have a university degree in computer science. I worked for both Sun Microsystems and Oracle as a tech engineer, and Java was my daily business for many years. Today I am working as a presales consultant for tailored IoT projects, as an Information Security Officer (ISO), and a team lead. Once a developer, always a developer. For 20+ years, I have enjoyed writing FLOSS code. Robust, modern, shiny code. Well, at least sometimes 😉

Projects

I am pleased to share the source code for my FLOSS projects with you here on GitHub.

If you like one of the projects below, give it a GitHub star. I am also happy to read your bug reports and feature requests.

NumericalChameleon

The NumericalChameleon (abbrev. n16n) is a platform independent unit converter with a lot of features.

The homepage for end users is at http://www.NumericalChameleon.net

Name/Repository Description OS Webpage
n16n-desktop A Swing GUI in order to access n16n's features. cross platform http://numericalchameleon.net
xml-holidays n16n's category "High Days and Holidays" cross platform https://jonelo.github.io/xml-holidays/
jAdapterForNativeTTS n16n's feature to speak numbers by audio cross platform https://jonelo.github.io/jAdapterForNativeTTS
unlock-win-tts-voices Windows script in order to unlock Windows TTS voices Windows https://jonelo.github.io/unlock-win-tts-voices
n16n-gensound-mstxt2speech Windows script to generate sound files Windows https://jonelo.github.io/n16n-gensound-mstxt2speech/

Jacksum

Jacksum (JAva ChecKSUM) is a free, open source, cross-platform, feature-rich, multi-threaded data integrity verification tool on the command line. It is also a lib, and it is all about checksums, CRCs, and message digests (aka hashes, data/file fingerprints, thumbprints).

The homepage for end users is at https://jacksum.net

Name/Repository Description OS Webpage
jacksum Jacksum (lib and CLI) cross platform https://jacksum.net
jacksum-for-linux Jacksum File Browser Integration on GNU/Linux Linux https://jonelo.github.io/jacksum-for-linux/
jacksum-for-macos Jacksum for macOS macOS https://jonelo.github.io/jacksum-for-macos/
jacksum-for-windows Jacksum for Windows Windows https://jonelo.github.io/jacksum-for-macos/
HashGarten A GUI to access features of Jacksum cross platform
docker-jacksum Jacksum on Docker cross platform x64 https://hub.docker.com/r/jonelo/jacksum
jacksum-help2wiki Converts jacksum -h output to GitHub Wiki compatible markup cross platform
jacksum-testcases Testcases to test Jacksum by calling its CLI cross platform https://github.com/jonelo/jacksum-testcases
dumahadaba Dump Malware Hash DataBase. For Jacksum's --wanted-list option cross platform https://github.com/jonelo/dumahadaba

Misc Tools

Name/Repository Description OS Webpage
bashberries Misc bash scripts GNU/Linux https://jonelo.github.io/bashberries/
osxapp_vers Get OS version info from an Apple Install*.app macOS https://jonelo.github.io/osxapp_vers/
ahtfix Restore the Apple Hardware Test (AHT) on your (old) Mac macOS https://jonelo.github.io/ahtfix/
saveWindowsLoginImage Saves the current Windows logon image Windows+WSL https://jonelo.github.io/saveWindowsLogonImage/
TOTP secrets adapter Adapter to feed authenticators running on the desktop cross platform

My OpenPGP Public Key

https://keys.openpgp.org/vks/v1/by-fingerprint/1DC82A86AE55FD2B97E92C0763F84C61889BAC2E

-----BEGIN PGP PUBLIC KEY BLOCK-----
Comment: 1DC8 2A86 AE55 FD2B 97E9  2C07 63F8 4C61 889B AC2E
Comment: Johann N. Löfflmann (https://johann.loefflmann.net)
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=yQ8T
-----END PGP PUBLIC KEY BLOCK-----

Pinned Loading

  1. jacksum jacksum Public

    A hash utility, est. 2002, FLOSS. 489 hash functions, HMAC support, cross platform, feature-rich, multi threaded. CLI and API. Recursive hashing, predefined and customizable formats, verify data in…

    Java 44 5

  2. n16n-desktop n16n-desktop Public

    The NumericalChameleon is a free, open source unit converter for the desktop on macOS, Linux, and Windows

    Java 6

  3. xml-holidays xml-holidays Public

    Expresses international holiday definitions using XML, it provides 1100+ definitions from 35+ countries/regions

    2

  4. bashberries bashberries Public

    A small set of tiny bash scripts that can do some work for you on GNU/Linux and macOS

    Shell 3 1

  5. osxapp_vers osxapp_vers Public

    Get product name, exact product version and build version from an Apple Install [Mac OS X|OS X|macOS]*.app or from a mounted Mac OS X Install CD/DVD image

    Shell 16 3

  6. HashGarten HashGarten Public

    A cross-platform Swing GUI for Jacksum.

    Java 9 1