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Keep awake update #1
Version 1.0.1 is published on Chrome Web Store. Added option to enable extension on startup:
Actually already published version 1.0.2 🙂 I noticed an issue with enable on startup option. It worked but the awake status did not reflect properly after some time. Version 1.0.2 has that corrected.
Eurojackpot Generator app update #1
Version 1.0.1 was just released to the Play Store. User reported that on smaller screen, results do not fit the screen. I enhanced scaling to fix it. I made similar changes to text and did some minor code upgrades.
Eurojackpot Generator mobile app published on Play Store!!!
Huge milestone in my amateur deveoloper career! I completed all development and testing steps and finally Eurojackpot Generator app is available on Google Play store! I received some valuable feedback during the testing phase and decided to include dark mode option and change description and screenshots on the store entry.
Download Eurojackpot Gnerator app from Play Store
Eurojackpot Generator app page with feature list and version release tracker
General update on my dev plans
I haven’t posted anything new in a while because I’ve been busy working on the Eurojackpot Generator mobile app! It’s my first mobile app and will be available only for Android. It’s currently undergoing development and testing phases on the Play Store, and it should enter open testing around mid-June. The app has essentially the same functionality as the extension, except for notifications. After fighting with notification functionality for two weeks, I’ve decided to proceed without it for now but will include notifications in a future update.
I’ve also started working on a mobile game—but it’s certainly not as easy as one might think! It will be something very simple, yet it still requires a lot of work to meet minimal player expectations. I’ll probably publish it toward the end of the year.
In the meantime, I have plenty of ideas for enhancing my current extensions and for creating new ones. Stay tuned!
New web browser extension – Keep Awake
Simple but my own. I was looking for such extension to prevent my computer to go to sleep when I step away for a bit, but was not happy with others I found so I decided to write it. Very simple, yet fulfils my needs. Check it out – Keep Awake. It’s already published on Google Web Store.
It uses Chrome power API display setting, so not so powerful, but suitable for me. I already have some ideas for enhancements, so definitely there will be next version/s but not much to upgrade in such a simple tool.
Generate number of self-signed certificates
I had a requirement to test Yubikey 5 with PIV for Windows smartcard authentication. There’s four slots for certificates 9a, 9c, 9d and 9e and by default a, d and e work for user authentication, while 9c requires minidriver to work. I wanted to deploy 4 certificates, with iterated names to confirm if slots work and if in fact 9c doesn’t work without minidriver. I used PowerShell to generate certificates:
$baseName = "wojciechjakubowski"
$certPath = "Cert:\CurrentUser\My"
for ($i = 1; $i -le 4; $i++) {
$subject = "CN=$baseName$i"
$cert = New-SelfSignedCertificate -Subject $subject `
-KeyUsage DigitalSignature `
-Type Custom `
-TextExtension @("2.5.29.37={text}1.3.6.1.4.1.311.20.2.2") `
-CertStoreLocation $certPath
$pwd = ConvertTo-SecureString -String "123" -Force -AsPlainText
$file = "$baseName$i.pfx"
Export-PfxCertificate -Cert $cert -FilePath "C:\temp\$file" -Password $pwd
}
1.3.6.1.4.1.311.20.2.2 is an OID for smart card logon, which was something I wanted to test, but you can replace or add EKUs using below common OIDs to test against other purposes:
1.3.6.1.5.5.7.3.2 – Client Authentication1.3.6.1.5.5.7.3.1 – Server Authentication1.3.6.1.5.5.7.3.3 – Code Signing1.3.6.1.4.1.311.20.2.2 – Smart Card Logon1.3.6.1.4.1.311.10.3.12 – Document Signing
For what it’s worth, I confirmed that 9c is not showing up without minidriver and it does show up with minidriver installed.
OpenSSL 3.5 with PQC support
Long awaited version 3.5 of OpenSSL was published on April 8th. It comes with native support for NIST published PQC standards:
- FIPS 203 – ML-KEM – Module Lattice Based Key Encapsulation Mechanism
- FIPS 204 – ML-DSA – Module Lattice Based Digital Signature Algorithm
- FIPS 205 – SLH-DSA – Stateless Hash Based Digital Signature Algorithm
OpenSSL 3.5 is an LTS release and will be supported until 2030.
Looking forward to testing the PQC capabilities of the latest OpenSSL version – will share an update soon!
Eurojackpot Generator update #4
It took me a while but it’s the biggest update so far, at least code wise. Version 1.4.0 allows to set notifications of upcoming Eurojackpot draws. You can mark default values of 24h, 6h and 2h or specify custom value. It can be number of hours to draw, for example 4h, or exact time on the day of the draw, for example 16:35. Extension is using system notifications and on Windows it looks like that:
This is first version that requires permissions. Check Eurojackpot Generator for version control.
Eurojackpot Generator update #3
Version 1.3.0 of Eurojackpot Generator web browser extension is now published on Chrome Store.
I added date of the next draw and countdown towards it. Popup box is also now wider and fonts are slightly changed.
Eurojackpot Generator update #2
And yet another update to my fancy Eurojackpot Generator. With version 1.2.0 I have added option to copy generated numbers to clipboard. I was thinking if I should add popup confirming it’s copied but it didn’t seem to be user friendly, so numbers are copied just-like-that. That’s it for end users, but I also did some code optimization and cleanup.