Changes, changes and more changes!

Hey you, hey you,

I am still here, yes. I am still strong and continue to “hack” around. I do not want to apologize for leaving you alone for so long. I try to do my best for the community and for self-improvement, and today seems like a great day to give you an update. {sunny day in Berlin}

So, lets start from the end. I am currently in Berlin. I left my job as a Blockchain engineer and some really good proposals back in my home country, in order to get to know the “world” better and learn from the best. I am writing this post from a nice and huge wooden library, in the center of Berlin and it is a really good start. I am actively searching for a job, both in decentralization/blockchain/privacy and security sectors, so feel free to give some tips if you are from around, or contact me to grab a beer.

In other news, this was a hell of a year. I completed my academic life (yes I am leaning towards not starting a PhD), I got more into development because of my job and really liked it (Go, Solidity and other languages related to blockchain development), I developed some courses for Hakin9 including Attack and Defense in Blockchain technologies and Penetration testing with Raspberry Pi, I did some great talks in meetups and conferences regarding blockchain and decentralization (you can find my talks in my youtube channel) and released some articles in the BAD-ASS 2600 magazine.

OK, this not at all my whole year, but this is the stuff that stood out and that I want to share with you. As I said, I am now in Berlin, zeroing down the counter, and searching for the next big thing. I don’t know if I will work, if I will create a team, or start a PhD. I just know that I want to create things, share with others and get to know the world. And I don’t mind if one does not know me in the end. Because you will know me.

 

All great changes are preceded by chaos.
Deepak Chopra

 

Cr0wTom

Introduction to Bitcoin and Blockchain Technologies (Greek)

Are you still here,

As I told you in an earlier post, I have many things that I currently work in! One of them is my recent engagement with Blockchain and Decentralized Ledger Technologies. I started around a year ago with my master degree thesis, with title “PKI Decentralization with Blockchain Technologies” and after that I started working as a Blockchain Engineer in the Aristotle University of Thessaloniki.

This sector is really interesting, with many challenges at its current state, and that’s what I like about it. I also work with a great team of people, and this week I was lucky enough to talk in the Machine Learning and Blockchain join meetup in Thessaloniki about Bitcoin and Blockchain topics. Suddenly, the talk was in Greek and I upload a video capture of it on YouTube. In case I see interest in the video, I will try to add subtitles to it, but it needs some work, so we will see.

I want to thank the people that helped me reach this stage and make this talk, especially Dr. Karasavvas, and I will keep you updated for future talks and events. Also, thanks to everyone that joined me in this meetup, and if you have any questions please add it to the comments bellow or in the YouTube video.

Cr0wTom

TROOPERS18 and a crazy journey!

Hello friend,

Thinks are happening to my territory, and no time slots for this lonely blog. I see that many of you keep visiting though and I am really happy about it. I have many things to tell you. Many things happen in my life, and I want to continue to share with you my experiences in the security and privacy sector.

The last big think that happened, was TROOPERS18. My second time in this conference was outstanding, and even better than the first one. I don’t want to talk about the technicals of this conf. The main conference had some great talks, the PacketWars was really fun, and the interactions I had with the community made this experience awesome. But digging into them is a waste of time. I strongly suggest you to go and live it. Meet people, join talks and overall enjoy your time there. That’s what I did this year and marked it as one of the great experiences of my security life.

And as you know, I like to express myself through my videos and photographs, that’s why I prepared a video for you. Enjoy it, and give me your honest feedback 😀

See you at TROOPERS19 😉

Cr0wTom

BlackHat Europe 2017 – The Wrap Up

“Hello, friend. Hello, friend? That’s lame. Maybe I should give you a name, but that’s a slippery slope. You’re only in my head. We have to remember that. Shit.”

Hope you are all well.

After a nice trip to London, and a great time at Blackhat Europe 2017, I feel the need to share my experience with you. Everything started with the place hosting the event. Last year’s BlackHat was hosted in the Business Design Center, which was a really big and open place, perfect for the business hall and the briefings. And I was sceptical about the change of the place to Excel, but when I arrived I understood the need for a change.

The conference was twice as big, with twice the attendees. The briefing rooms were bigger and ready to welcome more people. Room B, where the keynotes and locknote took place, was outstanding, with an aura from BlackHat USA. Green lights everywhere and loud music. People from the industry talking in every corner, and great briefings taking place one after the other.

Last year I was a bit dissapointed from the event. Everything was so quiet, so soft. But this year everything got fixed. I met some great people, both from companies and individuals. Business hall was huge with great companies, prizes everywhere, and some challenges which was really missing from last years event. But the best part was the quality of the briefings, which was something that everyone talked about in the event. All these years Blackhat europe seemed a bit left off, in comparison with its USA sibling, in the aspect of briefings quality. But this year many talks were really great, presented from some really great researchers, so I encourage you to go and watch them as soon as they will be published in the YouTube channel of the event.

Finally, I have to thank illumio for the great prize at the Passport to prizes lucky draw, Jeff Moss and UBM for the Student Scholarship and the opportunity for attending this event for one more year, and everyone that made this event special. See you in the next one, and keep up the good work.

Cr0wTom

p.s. As always I produced a video from the event to bring you my experience. Feel free to Like, Comment, Subscribe or even Dislike my video, and support me. 😀

BlackHat, TROOPERS and more!

Hello guys,

I know you hoped that Cr0w’s Place is dead but I came to deny you. The main reason of my absence is my masters thesis, for which I want to talk you about.

So, basically my thesis is based on blockchain technologies and I am trying to develop an application (and find a way, generally) with which I will be able to bypass the Certificate Authorities of the SSL/TLS protocol. You will be able to read more details about it in my final paper, which will be published around March, but for the time being, you can head to my GitHub profile and give me some love.

In other news, I want to let you know that for one more year I will attend BlackHat Europe and TROOPERS. Just today I got informed from Niki (the nice lady that is responsible for TROOPERS) that I will attend the event with a scholarship for one more year. I am really happy about it and of course you will have coverage of the event from my YouTube channel and my short movies.

TROOPERS 18 takes place in Heidelberd, Germany in the 12th – 16th of March 2018, and BlackHat Europe in the 4,5 December 2017 which I will attend too. I will be happy to meet every one of you there. Until then, stay strong.

Cr0wTom