I put youtube on autoplay, and woke up to this lecture...it's quite informative

Prof. Paar I don't have the words to thank you enough for these lectures. I took Crypto as an optional module during my conversion MSc in Computer Science and I felt quite challenged/intimidated by the content. Your lectures helped me enormously and I felt very confident for the final exam where I ended getting a first class mark in a difficult examination. Thank you so much once again!

Classification 0:00 basics/setup 18:00 substitution cipher 47:00 attacks 53:00

Before and After graduating from my school up to now that am doing my Masters in Information Security, I had never ever attended such lecture from any professor in my entire life, It was really, really AWESOME. I really liked that due to the one who is giving lecture have a good knowledge of the topic, Huge love and thanks from Afghanistan, for sharing such lectures.

Great lecture! Approximately 2 hours ago i had no clue such lectures on topics like these even existed! But for the part 1 hour 17 mins it feels like I've attended a lecture on cryptography! I feel great! Tomorrow or day after another lecture (Thumbs Up) !!

So ,I downloaded a book for teaching me cryptography yesterday and I woke up today searching for a lecture and surprise surprise , it's the same man who wrote that book . The way he teaches has impressed me more than the book. Thanks.

whoever made the image stabilizer algorithm, please redo it...when you're not drunk.

You're the best thing that has ever happened to the U.S.'s education system!! thanks for saving many student's lives, sir!

I'm Iraqi software engineering student in the last year, I have much interest in cryptography, these lectures will be useful to me 😊

looking at this video really gives me the motivation I need for school. Honestly, thank you for this video.

Thanks mr christof for releasing this lectures on a platform like this where we can stream free. I am following from Cameroon. You inspire me Alot. Working hard to be like you.🙏

Dear Professor Paar, This is my third lecture. I am so impressed with your series, and teaching style that I plan to go through the series. I have even bought your textbook. I am surprised that you did not talk much about the important historical implications of Crypto - the disastrous Zimmerman Telegram in 1917, Enigma, the British poem codes of WWII - that were so easily broken by German cryptanalysts - or the reuse of Soviet one-time codes, which led to revelations about the Soviet spy networks in the US and Britain. While you mention Enigma In your lecture, you don't even mention military or intelligence communication in the use of Crypto. During the war, my father (who had studied in Germany) was in charge of a US Army mobile crypto unit which was tasked to decrypt Wehrmacht radio traffic. The ciphers were changed daily. A Luftwaffe weather plane out of Norway broadcast the weather parameters from the North Pole every morning. The Allies sent a plane up to the North pole to get exactly the same information. Comparing the ciphertext to what was likely to be the plain text, it took my dad's cryptanalysts less than 20 minutes to break the cipher. This was so reliable that when the American Air Corp offered to shoot down the German weather plane, they were persuaded not to do so because of the value of the daily reports to the Allied cryptanalysts.. Thank you for your excellent lectures. I love that you break into German sometimes, and even quote Goethe!

After this lesson, fell in love with Cryptology. Thanks for educating us!

Learn Cryptography from a German guy, how cool is that?

i used to attend prof christof Paar's lecture once at RWTH Aachen,, he talked about how to decrypt satellite phone which was one of this students work .... so amazing... and I am still watching his 24 playlist lectures till now a day :) thanks Prof Paar

Professor Paar, thank you so much for making these extremely interesting lectures. Your lectures make crypto ' within reach' !! In addition you sound a very brilliant person !!

This is outstanding. I am following with your textbook as I did/do Algorithms by Robert Sedgewick. I have a feeling, like that instruction, this will prove timeless.

I am a Computer Science graduate, currently planning to study abroad, specially in Germany or any other EU state. I always loved the cryptography, and once I learned about DES, and AES, they just blew my mind, and I love the diffusion they cause. I stumbled upon the 7th Lecture of AES, as Galois Fields were a bit of a mystery for me. That just hooked me up, and now I will watch the whole series IA.

"Who thinks this is secure and wants to be kicked out of this university", hahaha laughed at that part

10 freaking years but still the best lectures on cypt. on u tube

Thank you Professor Parr for these wonderful lecture videos. They help me greatly in my studies!

Definition of cryptography here: 23:18

Thank you Professor for this wonderlful lecture. I could not learn cryptography properly when I was in college. You gave me an opportunity to learn it once more.

The best course in cryptography : clear and easy to understand as the title of his book says it ! Thaks a lot herr professor !

Let's not forget that Germany invented the Enigma machine. Lots of brilliant mind there. Great series Mr. Paar. Will watch it all!:)

fantastic. anyone else with no formal computer science background and thinking about going into this field? I'm graduating history major with a major passion to learn!

thank you prof. Parr. I have fallen in love with cryptology recently and this really helps grow my knowledge on the subject. -regards, A.C, Sep. 18, 2022.

After working in the field for a long time now, you do a great job delivering the details and your approach is very good. I particularly like your delivery of the material. With Cryptography being such a dry subject it isn't easy to deliver without being a little boring and you pull it off quite nicely sir.

Zee Germans are excellent!

Feel privileged to learn from such great teacher...Vijay from India

Thanks to you, I topped in Cryptography in my college. :D

A genius professor i have ever seen in cryptography

Thank you so much for releasing these, there are a massive help!

This is really good lecture, I understood everything and I have only the basic knowledge of cryptography.

thanks a lot.. I was reading from random sources and this simple yet beatiful lecture cleared all my doubts , I really wanna do all the vedios :)

wow.. i love this guy.. thank you Professor.

I love how excited the professor is, I'd love to sit in that class 😆

I really believe that you are a great teacher, great job.

Thank you so much sir ,the lectures are very useful and nicely explained.

Love these, love the content, love the teaching. It's awesome! Thank you SO MUCH sir!

i am Cse student from pakistan sir tomorrow is my paper and cryptography include in paper sir this vedio help me a lot thank u so much sir really appreciate the way u teach .....

When the lecture is in English and he hits you with that "Außendienstmitarbeiter"

Thank you very much your lectures were both educational and fun to watch. You really made a difference for me

Thank you for sharing your cryptology lectures with us, Professor Paar. Best regards.

Watching this in lockdown 2020 👍

Oscar enjoys these lectures very much.He learnt a lot.

Well, this class I awesome. I remember getting though my Data Security Class in Masters with this. respect !!

In the English literature, "Oskar" is "Eve" (for eavesdropper)

When you have to watch this because your educational system sucks :(

Thank you Dr Christof. Very enlightening, appreciated and helpful in EU-GDPR compliance work

thank you so much Mr.Paar for releasing your course on youtube, this is really helpful :)

I really enjoyed these lectures. Thanks for uploading them.

this is the reason because I love youtube , I was so interested in this topic for a long time and how I coulnt pay for go to this university I think this would be a good way to learn this topic.

Thank you Professor Parr. Cannot afford classes at the moment and these are a monumental resource.

Thank you, Mr. Paar. It's too cool. I love it. I'll express something in my native language. "সেরা"

Very very good and helpful lectures. Thank You Prof . to make these lecture freely available to the world thanks a lot

Another important reason to make your cryptography public, is for obscuration. If you were the only group using that specific cryptographic method, it would be easy to identify your specific messages. This is why the TOR Project was made public. It was invented by the US Navy, but was then made available to the public, in order to obscure their messages. For example, if another country was doing traffic analysis, it would be easy to identify US Navy messages, if the US Navy was the only group using TOR. Now that millions of people are using it, it has become much harder to identify traffic, from any specific source.

My favorite professor in university.

Dear lord, this is a university lecture not a French new wave film, what is with this unsteady camera?!

helpful in most part and thank you for making it free and open to every everyone.

prof. good explanation. concept is clearly understood. from india

Prof. Christof Paar in Cryptography = Prof. Gilbert Strang in Linear Algebra (I really hope Prof. Paar reads this comment 🥺)

Maybe if I'm drunk the video will look normal? But the lecture is excellent, thank you for putting this online!

thanks a lot for uploading all the lectures. iam talking a cryptography class at the Arizona state University. your videos are helping a lot and very interesting to listen to. Ein wenig zu viel deutsch zwischendurch incorporated aber es kommt sehr gut rueber. Danke noch mal. subscribed

Very interesting, and well explained! Thanks for posting this series.

superb. Thank you. I am hooked on crypto. World class instruction for free!

Watching this in 2022! Thank you for making this available professor

Thank you so much for your lectures!! Super helpful and love that I can find it on KZfaq!!

Really nice and useful content, i’m really happy you had this brilliant idea, of recording this nice course! Thank you very much sir!

Excellent lectures! Danke sehr, Prof. Paar!

very good Denglish

Really happy to have found these courses... auch gut wenn ich auf Deutsch lernen kann!

Prof single handedly saving my degree

Watching at x1.25 speed and feels so much more natural

That link in the bottom right seems to be drunk.

"alice, bob, and" "ev..." "oscar" o.O

Nice, I have seen all of your lectures! THX for this great job

59:38 there are other tricks, like bigrams and trigrams. (The frequency of not only single but double and triple letters.) So for example in English, "TH" and "THE" occur very frequently, but "ZX" and "QQX" would never occur.

Thank you Herr Dr. Parr I enjoyed your lecture.

Thank you, great lecture. Our uni. professor recommended this lecture series.

Thankyou very much sir for this wonderful series of lectures

Thank you. Greetings from Australia 🇦🇺

Awesome lecture. i'll watch the rest back to back. keep up the good work

Very informative and engaging lecture! Thanks!

nobody mentioned Cryptocurrency as an application of cryptography bcoz bitcoin was invented in 2009 and many people didn't aware of it

Good concepts man just finished watching this and look forward to finishing up the series.

It is so informative and interesting. I really loved it. Thank you sir

This is Satoshi Nakamoto

Thank you for the lecture series. I really appreciate it.

Thanks for share your knowledge .! Great course!

Excellent teaching style. awesome

I wish I was in the class I love cryptography

Awesome series! I will learn all this and record my own series on cryptography only to use different names than Alice and Bob in the examples... maybe Andrew and Brittany, I don't know.

How narrow-minded do you have to be to first come up with GnuPG or Secure Shell when asked for examples of cryptography? The right examples are online shopping and internet banking, those cover probably over 99% of computer cryptography. (Measured in economic value)

Such an angel of Cryptography!

Thanks for the free lesson. Gracias amigo :)

Thank you sir. very very helpful to us .

Oscar. Tricky fellow. Also goes by, "Eve" (eavesdropping)

The cardinality of the text substitution is not 26! but 26! - 1 as you have to remove the alphabet. if you do not want any letter to be substitute by itself you have then 25! instead. Nice course, thank you.

You are awesome watching from Egypt :)