Intro

Who am i?

Im a 22 Years and 2 months old student from Baden-Württemberg,Germany. In my freetime I often go mountainbiking. I also drive motorcycle with my dad. I try as often as I can to get out of my comfortzone and do stuff I would never thought that I could do.

My way into IT

I started IT around 10 Years and 0 months years ago. I was interessted in science from a young age so I caught on IT really fast. I started developing some small batch scripts at first but quickly got bored of it. I searched and found out how to program plugins for my favorite game Minecraft. I started learning Java after 0.5 years I wanted to learn a new language because I quickly learned the limit of Java so I searched and found C#. I found it very appealing because it has very advanced Windowssupport and a great syntax. After 1 year I started Webdevelopement. A friend advised to firstly start learning HTML/JS/CSS. After I became comfortable with the new enviroment I started creating many different projects. Around that time I started getting into IT-Security. At that time I played some CTF challenges and created some hackable apps for others to break.
You can contact me at: [email protected]

My Projects

My small blog

Log-in to application panel

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Contact

You can contact me here

Contact form is currently in maintenace

FlawCaptcha

Info

FlawCaptcha is my small Captchasystem for my Website. I use it to protect the Login and Contact forms from bots and hackers

How does it work?

I generate a basic background image with much noise and overlay it with the captcha.
After that I use multiple image manipulation tricks to distort the image. Like that:

imagefilter($img, IMG_FILTER_NEGATE);
imagefilter($img, IMG_FILTER_SCATTER, 10, 5);
imagefilter($img, IMG_FILTER_GAUSSIAN_BLUR);
imagefilter($img, IMG_FILTER_PIXELATE, 5);
Im also saving the captcha key in the php session so can check it later.

Conclusion

Even though it is not the safest method its fast, reliable, and userfriendly.
There are many image captcha api for php, but it is very easy to create your own
which suits your needs better. The apis are really not that much secure than your
own api. You just need to get creative with image ofuscation.

Useful links:

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Information for this website

Websitesize 209.5712890625KB

Generated at 2025-07-03 07:22:17pm

Generated for 82a5fc6886

User IP 172.71.120.12:40556

User Agent Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

Legal

In German and in english

How to delete Cookies

Chrome Desktop/Laptop/Mac

  1. Open Chrome.
  2. In the top right corner of the browser you will see three dots, which indicates a settings menu.
  3. Scroll down to the bottom of the page and click on “Advanced.”
  4. Click on the section “Clear browsing data.”
  5. Under the “All cookies and site data” section, you can customize which cookies to delete based on a specific time range and other options. Finally, you can complete the deletion by clicking “Clear data.” You can also clear your cache, which is where your computer stores previously viewed websites so they can be loaded faster on future visits.

      6. Chrome Mobile

      1. On your mobilephone or tablet, open the Chrome app.
      2. To the right of the address bar, tap on “More,” or what looks like three dots, and then select “Settings.”
      3. Tap on the “Privacy” category and then select “Clear browsing data.”
      4. Here you can personalize your selections for which cookies to delete by selecting a specific time range.
      5. Once you have made your selections, you can then check “Cookies and site data.” Uncheck all the other items.
      6. Tap “Clear data.”

          7. Chrome iOS

          1. On your device, launch the Chrome app.
          2. At the top right, tap on the three dots, scroll down and then select “Settings.”
          3. Under settings, tap “Privacy” then “Clear browsing data.”
          4. Select “Cookies, site data,” and uncheck all other items.
          5. Tap on “Clear browsing data.”
          6. Then select “Done.”

              7. Firefix Desktop/Laptop/Mac

              1. Open Firefox on your computer.
              2. In the upper right-hand corner of the browser, click the “menu bars,” which look like three parallel lines, and click the “Privacy” tab.
              3. Here you can select “Clear your recent history.”
              4. Be sure that only “Cookies” is checked, and then select the time frame for which you would like to delete your cookies. If you want to delete all cookies, select “Everything.”
              5. Double check your selections to make sure that other items you want to keep are not selected, and then hit “Clear now.”

                  6. Firefix Mobile

                  1. Go to the “Settings” menu.
                  2. On the settings menu, look for “Privacy & security” and select “Clear private data.”
                  3. You will then be taken to a list of what can be cleared where you can select “Cookies & active logins.”
                  4. After you have made your selection, tap the “Clear data” button to finalize deleting cookies.

                      5. Firefix IOS

                      1. Open Firefox.
                      2. Click on the “menu bars,” which looks like three parallel lines in the lower right-hand corner of the browser window.
                      3. Select “Settings.”
                      4. Scroll down to “Privacy.”
                      5. Select “Clear private data.”
                      6. Make sure only “Cookies” is selected, then tap on “Clear private data.”

                          7. Safari MacOS

                          1. Open Safari.
                          2. Select “Preferences” from the dropdown Safari menu.
                          3. Click on “Privacy,” then on “Manage Website Data.”
                          4. Click on “Remove all” from the dropdown menu.

                              5. Safari iOS

                              1. Go into the Settings menu on your device.
                              2. Scroll down to “Safari,” then “Advanced,” then “Website Data”
                              3. Tap on “Clear history and website data” to clear cookies.

                                  4. Internet Explorer

                                  1. Launch Internet Explorer.
                                  2. Select “Tools” from the menu, select the “Safety” menu, and then select “Delete browsing history.”
                                  3. Make sure that the “Cookies and website data” checkbox is selected, and then click on “Delete.”

                                      4. Edge

                                      1. Launch Microsoft Edge and go to the “more” menu and select “Settings.”
                                      2. Scroll to “Clear browsing data,” and then select “cookies and saved website data” and then select clear.