Lecture 1: Introduction to Cryptography by Christof Paar

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  • Опубліковано 29 січ 2014
  • For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com.
    The book chapter "Introduction" for this video is also available for free at the website (click "Sample Chapter").

КОМЕНТАРІ • 513

  • @kungisans
    @kungisans 8 років тому +192

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

  • @theanswer3sixers
    @theanswer3sixers 5 років тому +80

    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!

  • @waheedullahasghari5124
    @waheedullahasghari5124 5 років тому +28

    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.

  • @the80386
    @the80386 9 років тому +782

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

    • @betlamed
      @betlamed 8 років тому +56

      +zeebazu You know what would be cool? If the anomalies in the stabilisation were an encrypted message.

    • @douwehuysmans5959
      @douwehuysmans5959 6 років тому +2

      Balmer peak bruh

    • @Tadesan
      @Tadesan 5 років тому +3

      80386 go back to home-school.

    • @zackmarshall4217
      @zackmarshall4217 5 років тому +2

      hahahaha

    • @jfangx
      @jfangx 5 років тому +8

      UA-cam is home schooling.

  • @1EddyG
    @1EddyG 10 років тому +46

    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) !!

  • @mr.shanegao
    @mr.shanegao 3 роки тому +114

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

  • @hassamrajpoot8397
    @hassamrajpoot8397 4 роки тому +3

    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.

  • @aryansaeedi7618
    @aryansaeedi7618 9 місяців тому +3

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

  • @fernandoschuindt1665
    @fernandoschuindt1665 8 років тому +280

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

    • @greywolf271
      @greywolf271 7 років тому +19

      Even better would be going back in time and working with Alan Turing. Just when brute force attacks were beginning to shape the world

    • @fernandoschuindt1665
      @fernandoschuindt1665 7 років тому +22

      and now you can learn why

    • @tabraizahmad7876
      @tabraizahmad7876 6 років тому +1

      hahahahahahaha

    • @mohamedabdelkhalek4298
      @mohamedabdelkhalek4298 5 років тому

      I think it will be cooler to learn it from English guy LoL

    • @KPater-mf4je
      @KPater-mf4je 5 років тому +1

      @@simplepotato24 The ENIGMA was cracked even before Turing, by a team of Polish scientists. The Germans tried to improve the ENIGMA machine, and it wasn't long before the British cracked that as well.
      Sounds about as strong as a chicken-wire fence.

  • @dingsanghacaspa3575
    @dingsanghacaspa3575 4 роки тому +10

    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.🙏

  • @anasacmh
    @anasacmh 8 років тому +10

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

  • @robberywills3257
    @robberywills3257 Рік тому +6

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

  •  7 років тому +77

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

  • @66Narendra99
    @66Narendra99 9 років тому +78

    Zee Germans are excellent!

  • @darkdante2k4
    @darkdante2k4 9 років тому +6

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

  • @sing759
    @sing759 7 років тому +1

    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

  • @jsw060943
    @jsw060943 8 років тому +35

    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!

    • @KPater-mf4je
      @KPater-mf4je 5 років тому +5

      That's interesting -- but it sounds very military-oriented. Might be a good idea for a lecture series on 20th-century military cryptography (don't military academies teach that? I'm not sure). You seem to have a lot of info on the subject, maybe collect more facts on the topic and present it to a lecturer or post it on a blog? It could be a great way for non-CS-students to be introduced to cryptography in a historical context.
      On Khan Academy, the lecturer sometimes goes into cryptographical history, but also gives visual examples of cryptography (as in, how some basic methods affect pixels in an image).
      It's a nice change from the usual dry crypto lecture (not talking about Paar's -- his series is great, was recommended to me by a fellow student).

    • @blackcanary8531
      @blackcanary8531 4 роки тому

      @@KPater-mf4je are you learning from khan's academy?

    • @gracegrace8723
      @gracegrace8723 3 роки тому

      I'm fortunate getting in touch with *Ronaldhacks01_ on ||πsta* and he made the recovery of my non spendable Bitcoin back to Spendable successfully. He's Legit,.,.

  • @anusaxena971
    @anusaxena971 2 роки тому +3

    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 !!

  • @meganskelton7452
    @meganskelton7452 9 років тому +3

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

  • @stand4reason
    @stand4reason 6 років тому

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

  • @denisehill4115
    @denisehill4115 8 років тому +2

    I really enjoyed these lectures. Thanks for uploading them.

  • @mattgraves3709
    @mattgraves3709 3 роки тому +5

    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.

  • @marwamimouful
    @marwamimouful 7 років тому +1

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

  • @noormuhammadmalik6191
    @noormuhammadmalik6191 6 років тому +2

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

  • @PolkiSaMalutkie
    @PolkiSaMalutkie 10 років тому +1

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

  • @monicagothers1729
    @monicagothers1729 6 років тому

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

  • @jithunniks
    @jithunniks 2 роки тому +1

    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.

  • @debralegorreta1375
    @debralegorreta1375 10 місяців тому

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

  • @TheMR-777
    @TheMR-777 10 місяців тому +1

    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.

  • @adrianabreu1565
    @adrianabreu1565 8 років тому +1

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

  • @muhammadtariq2571
    @muhammadtariq2571 7 років тому +1

    A genius professor i have ever seen in cryptography

  • @Shinta007
    @Shinta007 9 років тому +6

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

  • @haimkupershmidt4849
    @haimkupershmidt4849 3 роки тому

    Excellent lectures! Danke sehr, Prof. Paar!

  • @CryingMG
    @CryingMG 3 роки тому +2

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

  • @nicholas123lotr
    @nicholas123lotr 9 років тому

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

  • @slimjim178
    @slimjim178 8 років тому +4

    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.

  • @egonzalez4294
    @egonzalez4294 9 років тому +384

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

  • @PFFF785
    @PFFF785 4 роки тому +1

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

  • @user-fi2kv7uv9n
    @user-fi2kv7uv9n 8 років тому +1

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

  • @alexba1771
    @alexba1771 9 років тому

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

  • @aneeshprasobhan
    @aneeshprasobhan 4 роки тому

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

  • @younglatino134
    @younglatino134 8 років тому

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

  • @Integralsouls
    @Integralsouls 3 роки тому +2

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

    • @blake469
      @blake469 3 роки тому

      Have you ever heard of "the kindle"??? lol

  • @PamirTea
    @PamirTea 6 років тому

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

  • @czekiri
    @czekiri 6 років тому +4

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

  • @arrowhead697
    @arrowhead697 6 років тому

    Very informative and engaging lecture! Thanks!

  • @matterwiz1689
    @matterwiz1689 3 роки тому +7

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

  • @kirtiseth9783
    @kirtiseth9783 8 років тому

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

  • @nemesisc6122
    @nemesisc6122 5 років тому +11

    Definition of cryptography here: 23:18

  • @felipelopezhernandez2666
    @felipelopezhernandez2666 8 років тому

    Thanks for share your knowledge .! Great course!

  • @smrititiwari8243
    @smrititiwari8243 6 років тому +2

    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 :)

  • @simonfanuel6692
    @simonfanuel6692 5 років тому

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

  • @jyotiumedbarekar3875
    @jyotiumedbarekar3875 6 років тому +3

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

  • @jamesthurlow466
    @jamesthurlow466 8 років тому

    Thanks for uploading this!

  • @redelization
    @redelization 5 років тому +2

    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!

  • @bstemic3623
    @bstemic3623 2 роки тому

    Thank you Herr Dr. Parr
    I enjoyed your lecture.

  • @TheR4Z0R996
    @TheR4Z0R996 9 років тому

    Beautiful lesson, congratulation prof! :)

  • @rayhan3918
    @rayhan3918 8 років тому

    Excellent teaching style. awesome

  • @The4th-Man
    @The4th-Man Рік тому +1

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

  • @etnkishore
    @etnkishore 7 років тому

    Thankyou very much sir for this wonderful series of lectures

  • @f0restwow
    @f0restwow 2 роки тому

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

  • @diencai1812
    @diencai1812 2 роки тому

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

  • @blackolotus
    @blackolotus 3 роки тому

    My favorite professor in university.

  • @muhammadtariq2571
    @muhammadtariq2571 7 років тому

    Thanks for series of lectures

  • @denizokumus1777
    @denizokumus1777 5 років тому

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

  • @matrixstuff3512
    @matrixstuff3512 6 років тому +1

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

  • @rosesushmit5861
    @rosesushmit5861 Рік тому

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

  • @explorewithashokgunturu
    @explorewithashokgunturu 3 роки тому

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

  • @thebudkellyfiles
    @thebudkellyfiles 6 років тому

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

  • @QuantumEg
    @QuantumEg 7 років тому +1

    You are awesome watching from Egypt :)

  • @D3w10n
    @D3w10n 9 років тому +20

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

    • @D3w10n
      @D3w10n 4 роки тому

      @@samuelfofana9752 programming

    • @MikhailFederov
      @MikhailFederov 4 роки тому

      I mean he didn't go through any technical details. This is more of a ELI5 intro.

  • @ThorstenJohannvorderbrueggen
    @ThorstenJohannvorderbrueggen 4 роки тому

    Great addition to the book ...

  • @firstnamesecondname5341
    @firstnamesecondname5341 4 роки тому +3

    Watching this in lockdown 2020 👍

  • @vijayakumark5190
    @vijayakumark5190 7 років тому +2

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

    • @125_yash6
      @125_yash6 7 років тому +1

      Bro try nptel it's good too

  • @kittie4269
    @kittie4269 Рік тому +1

    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.

    • @vgdevi5167
      @vgdevi5167 Рік тому

      Same here, wha ru studying?

  • @acidpunk7423
    @acidpunk7423 Рік тому

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

    • @kiit8337
      @kiit8337 Рік тому

      Can a 12 th pass student understand this ...???

  • @hoshanggunner
    @hoshanggunner 8 років тому +3

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

    • @hoshanggunner
      @hoshanggunner 3 роки тому

      Graham Nichols I went on to be a software engineer in big data. And also did my masters in big data. I’d love to do my PhD under this professor.

  • @stefjwin
    @stefjwin 8 років тому

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

  • @warunausgoda
    @warunausgoda 7 років тому +1

    Thank you sir. very very helpful to us .

  • @Alumni275
    @Alumni275 7 років тому

    THIS IS AWESOME, thank you bro.

  • @sonnyyombo2230
    @sonnyyombo2230 8 років тому

    Thanks so much for this. It is very informative.

  • @vijjibabu1
    @vijjibabu1 10 років тому

    Excellent lecture...very engaging...

  • @dr.shemalatha7636
    @dr.shemalatha7636 6 років тому +1

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

  • @caaussie1605
    @caaussie1605 2 роки тому

    Thank you. Greetings from Australia 🇦🇺

  • @nkurunzizaegide
    @nkurunzizaegide 4 роки тому

    Excellent lecture. Thanks

  • @kevint615
    @kevint615 8 років тому +1

    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

  • @asesorestic
    @asesorestic 2 роки тому +1

    Thanks for the free lesson. Gracias amigo :)

  • @olaiyabukola1358
    @olaiyabukola1358 9 років тому

    i love d lecture.... so informative

  • @imaddinamsif
    @imaddinamsif 6 років тому

    thanks for sharing your knowledge.

  • @lordmushroom723
    @lordmushroom723 2 роки тому +1

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

    • @Teutathis
      @Teutathis 2 роки тому

      His book is the go-to curriculum for learning Cryptography so Id be surprised if he wasn't excited xD

  • @spiritemporer9027
    @spiritemporer9027 6 років тому +3

    I wish I was in the class I love cryptography

  • @haryantoharyanto7121
    @haryantoharyanto7121 6 років тому

    thanks a ton sir, It's greatly appreciated.

  • @IvoirRienna
    @IvoirRienna 6 років тому +1

    Good Lecture!

  • @qweoiwjewiodc1954
    @qweoiwjewiodc1954 Рік тому

    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.

  • @QuranRecitation-xo8vm
    @QuranRecitation-xo8vm 2 роки тому

    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 .....

  • @1234szable
    @1234szable 8 років тому

    awsome.... waiting for the implementation of cryptographic scheme

  • @youmah25
    @youmah25 8 років тому +1

    very nice introduction

  • @alexlu2844
    @alexlu2844 5 років тому

    Thank you sir. You saved my life :)

  • @rootshell101
    @rootshell101 Рік тому

    Good job cameraman, good job!!!!

  • @venkyvanjre5433
    @venkyvanjre5433 7 років тому

    well described, Thank You