https://stream.echo6.co/videos/watch/3d4931c8-9e87-446e-a9d8-598e90466fc5 We are using radare2 together with avr-gdb and simavr to reverse engineer the challenge "Jumpy" which implemets a password checking algorithm. (?s)lds r24[a-Z, 0-9;.$^]+\n[a-Z, 0-9;.$^│]+\n[a-Z, 0-9;.$^│]+\n[a-Z, 0-9;.$^│]+lds r24 Challenge files: https://github.com/Riscure/Rhme-2016 The .gdbinit from this video: https://github.com/cyrus-and/gdb-dashboard -=[ 🔴 Stuff I use ]=- → Microphone:* https://geni.us/ntg3b → Graphics tablet:* https://geni.us/wacom-intuos → Camera#1 for streaming:* https://geni.us/sony-camera → Lens for streaming:* https://geni.us/sony-lense → Connect Camera#1 to PC:* https://geni.us/cam-link → Keyboard:* https://geni.us/mech-keyboard → Old Microphone:* https://geni.us/mic-at2020usb US Store Front:* https://www.amazon.com/shop/liveoverflow -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #ReverseEngineering #CTF Wed, 15 Apr 2026 11:29:26 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/3d4931c8-9e87-446e-a9d8-598e90466fc5 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.