Cryptography 101 - Substitution Ciphers

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  • เผยแพร่เมื่อ 8 ม.ค. 2025

ความคิดเห็น • 52

  • @shirinatron
    @shirinatron 6 ปีที่แล้ว +16

    So, so helpful dude. I know about ceasar ciphers and substitution ciphers but I really, really couldn't work out how to break them. I'd sit there clueless and frustrated. I can see how simple it is now! Thank you again

  • @AhmadBagadood
    @AhmadBagadood 8 ปีที่แล้ว +9

    Great series.. thank you. Never stop making these videos, pls

    • @commiescumm1386
      @commiescumm1386 7 หลายเดือนก่อน +1

      He did. 11 years ago. 4 years before your comment

  • @ullupdrost4740
    @ullupdrost4740 ปีที่แล้ว

    Such a good thing for jotting down hilarious notes in front of and full view of anyone watching you

  • @unfairtrout
    @unfairtrout 11 ปีที่แล้ว +5

    Thanks for making these videos, they are really interesting!

    • @dominicalessandro186
      @dominicalessandro186 3 ปีที่แล้ว

      i guess it's kinda randomly asking but does anybody know of a good site to watch new tv shows online ?

    • @krisbass6713
      @krisbass6713 2 ปีที่แล้ว

      @@dominicalessandro186 nah man sorry idk of one, sorry to answer you 8 months later. I hope you found one.

  • @abishek_01
    @abishek_01 4 ปีที่แล้ว +3

    ThankYou for this. Great teaching.

  • @ashleypursell9702
    @ashleypursell9702 4 ปีที่แล้ว +1

    great video with simple explanation, thanks

  • @zacharyellis5383
    @zacharyellis5383 3 ปีที่แล้ว +2

    so with the Cesar Cypher, maybe I missed it but I'm just curious, when the alphabet pretty much steps three letters back, at least from my understanding, don't you technically lose three letters?

    • @mz9189
      @mz9189 3 ปีที่แล้ว +1

      when doing caesar cipher you use modulus 26 to help keep it circular. so for example Z = 25. (25+3) mod 26 = 28 mod 26 = 2 which 2 is C. Hope this helps!

    • @krisbass6713
      @krisbass6713 2 ปีที่แล้ว +2

      No, here's a good way to visualize a Caesar ciphertext- this is the case where the letter is only moved 3 spaces.
      ABCDEFGHIJKLMNOPQRSTUVWXYZ
      DEFGHIJKLMNOPQRSTUVWXYZABC
      The letters simply get remapped.

  • @Naturenerd1000
    @Naturenerd1000 9 ปีที่แล้ว +2

    It would be cool to throw some decoy letters in there too.

    • @ullupdrost4740
      @ullupdrost4740 ปีที่แล้ว

      Create a substitution cipher with entirely fake made up letters is de way

  • @2393034
    @2393034 11 ปีที่แล้ว +1

    Nice work!

  • @banujifernando9767
    @banujifernando9767 8 ปีที่แล้ว +7

    Am I just to dumb or is his language too sophisticated for me to understand?

    • @aryanshah6423
      @aryanshah6423 8 ปีที่แล้ว +7

      Banuji Fernando ur dumb

    • @banujifernando9767
      @banujifernando9767 8 ปีที่แล้ว +1

      aryan shah then please do me a favour and explain it in a way a dumb person such as me could understand.

    • @LouisJWest
      @LouisJWest 8 ปีที่แล้ว +2

      You might be getting distracted by some of the words he is using because they aren't found in normal everyday language. A good first step would be to get a basic book that explains the difference between ciphers and codes, and that explains what words like 'plaintext' mean. Having that basic understanding will allow you to follow what he is saying. Good luck.

    • @antediluvianspy5371
      @antediluvianspy5371 7 ปีที่แล้ว +2

      I don't understand what you don't understand.

    • @SharpPokeyThings
      @SharpPokeyThings 6 ปีที่แล้ว

      @@antediluvianspy5371 if I'm understanding you correctly, you dont understand what he doesn't understand making us all question what it is you both dont understand. Are we understood?

  • @mangoqualifier5854
    @mangoqualifier5854 8 ปีที่แล้ว +2

    I can't find the answer on the website. someone help please

  • @kulayivineeth4931
    @kulayivineeth4931 3 ปีที่แล้ว

    great video

  • @NotsorealJ
    @NotsorealJ 7 ปีที่แล้ว +2

    It's terrible that there is no space in the ciphertext of my assignment.

  • @TheMedievalShow
    @TheMedievalShow 4 ปีที่แล้ว

    Can I send a cipher we are having a real trouble over it.

  • @nainolwa7038
    @nainolwa7038 4 ปีที่แล้ว +5

    i dont understand anything

  • @rehanakouser2704
    @rehanakouser2704 3 ปีที่แล้ว

    Sir how we know about its letter

  • @vanderslagmulders
    @vanderslagmulders 4 ปีที่แล้ว

    Wow those 11:11 went by faster than a cats video. Thanks.

  • @iNREEk
    @iNREEk 7 ปีที่แล้ว +1

    This is awesome. I'm smart now lmao

  • @AHMEDALI-sb6xm
    @AHMEDALI-sb6xm ปีที่แล้ว +1

  • @murtazanihal4181
    @murtazanihal4181 8 ปีที่แล้ว +1

    thank you for the link :)

  • @idofilus7464
    @idofilus7464 6 ปีที่แล้ว

    I'm here because picoctf

  • @TheClimbingBronyOldColt
    @TheClimbingBronyOldColt 6 ปีที่แล้ว

    Decrypt me!
    101010414020212051732373101010222122393139737328101010302021233151282823101010303021292131237323101010224031303330287828101010304121311151732373101010312121335251237878101010213020312112737373101010412032303312787378

  • @maxlouis2910
    @maxlouis2910 5 ปีที่แล้ว

    7:40

  • @wachirarisky4284
    @wachirarisky4284 5 ปีที่แล้ว

    Who would send this message without using a Key or any tips seriously almost impossible to figure out. I'm surprised it's insecure maybe there's a word generator to make it easier to crack

  • @ominousentity1115
    @ominousentity1115 8 ปีที่แล้ว +1

    D(Тґис сйфэр ис фюн тоь тйп )=?

  • @_pearlsenpai_
    @_pearlsenpai_ 3 ปีที่แล้ว

    i cant understandddddddddd ;(