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Affine Cipher Part 1 - Encryption
 
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Hi guys, in this video we look at the encryption process behind the affine cipher
Views: 20753 Sam Cogan
Affine Cipher Encryption
 
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gcd: https://www.youtube.com/watch?feature=player_detailpage&v=WA4nP-iPYKE Decryption: http://youtu.be/XFxFPBKFVe8
Views: 22557 Theoretically
Affine Cipher Encryption / Decryption - شرح بالعربي
 
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شرح كامل لحالات التشفير و فك التشفير (مع وجود المفتاح وبدون) عن طريق شيفرة Affine Cipher بطريقة مبسطة مع حل مثال. - سيف بدران Information Security and Privacy - ِAffine Cipher Encyption + Decryption known and unknown key Fully Explained with Example. Done By: Saif Badran http://www.facebook.com/saif.badran iTeam Academic Group - JU
Views: 16335 iAcademy
Affine Codes | Math | Chegg Tutors
 
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This elementary encryption scheme goes back to ancient Roman times. In its simplest form, each letter is shifted forward by a fixed number of places. Imagine constructing an alphabet on a wheel, and rotating the wheel to generate the transformation. This can be achieved numerically by a linear modular transformation modulo 26: (Here P is plaintext, C the ciphertext.) C = P + k (mod 26) The encryption key is k, and clearly the decryption key is 26 - k (mod 26). ---------- Math tutoring on Chegg Tutors Learn about Math terms like Affine Codes on Chegg Tutors. Work with live, online Math tutors like Chris W. who can help you at any moment, whether at 2pm or 2am. Liked the video tutorial? Schedule lessons on-demand or schedule weekly tutoring in advance with tutors like Chris W. Visit https://www.chegg.com/tutors/Math-online-tutoring/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- About Chris W., Math tutor on Chegg Tutors: University of Pennsylvania, Class of 2007 Math, Computer Science major Subjects tutored: Trigonometry, Pre-Calculus, Linear Programming, GRE, Pre-Algebra, ACT (math), Web Design, SAT II Mathematics Level 2, Computer Science, PSAT (math), Discrete Math, Geometry (College Advanced), Information Technology, Set Theory, Applied Mathematics, Linear Algebra, Basic Math, Geometry, Computer Certification and Training, Software Engineering, LaTeX, SAT (math), Calculus, SAT II Mathematics Level 1, Number Theory, Algebra, Statistics, Numerical Analysis, and SSAT (math) TEACHING EXPERIENCE Over 7 years of experience teaching math at 3 universities and a community college. Courses ranged from Intermediate Algebra to Calculus II and class sizes varied from 2 to over 200 students. Tutoring since 2000 formally and informally, individually and in groups, for courses from Geometry to Differential Equations. Please note that I generally will not be available for audio and video in live lessons but my experience has been that audio and video aren't really needed. EXTRACURRICULAR INTERESTS Hiking, reading, video games, playing the guitar and piano. Want to book a private lesson with Chris W.? Message Chris W. at https://www.chegg.com/tutors/online-tutors/Chris-W-576966/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- Like what you see? Subscribe to Chegg's Youtube Channel: http://bit.ly/1PwMn3k ---------- Visit Chegg.com for purchasing or renting textbooks, getting homework help, finding an online tutor, applying for scholarships and internships, discovering colleges, and more! https://chegg.com ---------- Want more from Chegg? Follow Chegg on social media: http://instagram.com/chegg http://facebook.com/chegg http://twitter.com/chegg
Views: 791 Chegg
Encipher: Affine Cipher
 
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Replace letters by numbers, apply a cipher, E(x)≡ax+b (mod 26), replace numbers by letters
Views: 1996 Maths with Jay
Affine ciphers (Screencast 7.4.4)
 
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This video gives an application of modular arithmetic to cryptography by way of the affine cipher.
Views: 7100 GVSUmath
QCM : Les transformations - Troisième
 
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Tu veux t'évaluer sur les transformations ? Voici un petit QCM interactif qui comprend 5 questions. Pour chacune d’elles, 3 solutions sont proposées. Une seule est exacte. A l’issue de la dernière question, je te donnerai les solutions puis une correction détaillée si tu le souhaites. 👍 Site officiel : http://www.maths-et-tiques.fr Twitter : https://twitter.com/mtiques Facebook : https://www.facebook.com/mathsettiques/ Instagram : https://www.instagram.com/yvanmonka/
Views: 3690 Yvan Monka
Géométrie dans l'espace partie 9 : Théorème du parallélisme planaire
 
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Ici, je vous fait découvrir et démontre le théorème du parallélisme planaire. N'oubliez pas, les mathématiques forment la force mentale.
Views: 64 Arca Libre
Lecture 8: Advanced Encryption Standard (AES) by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com. The AES book chapter for this video is also available at the web site (click Sample Chapter).
Propriétés de la multiplication
 
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Retrouvez des milliers d'autres vidéos et exercices interactifs 100% gratuits sur http://fr.khanacademy.org Vidéo sous licence CC-BY-SA.
Affine Cipher Part 3 - Decryption
 
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Hi guys, in this video we look at the decryption process of the affine cipher.
Views: 11410 Sam Cogan
Le code Playfair
 
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Exposition Cryptologie Espace Ferrié Musée des Transmissions Rennes ( 35 )
Views: 213 michel rst
Décomposer en un produit de facteurs premiers - Troisième
 
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Dans cette vidéo, tu pourras apprendre à décomposer en un produit de facteurs premiers. 👍 Site officiel : http://www.maths-et-tiques.fr Twitter : https://twitter.com/mtiques Facebook : https://www.facebook.com/mathsettiques/ Instagram : https://www.instagram.com/yvanmonka/
Views: 81628 Yvan Monka
Affine Cipher Part 2 - Multiplicative/Modular Inverse
 
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Hi guys, in this video we look at the process of working out the multiplicative inverse of a number in order to decrypt a letter that was encrypted using the affine cipher.
Views: 13516 Sam Cogan
Loi binomiale partie 7 : Transformation affine
 
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Iic, je vous démontre les conséquences des transformations affines. N'oubliez pas, les mathématiques forment la force mentale
Views: 229 Arca Libre
TS-spé-sujet bac amélioré (2/2)- le n-codage affine et équation diophantienne
 
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TS-spé-sujet bac amélioré - le n-codage affine et équation diophantienne Un sujet sympa assez original sur les codages affines . Un très bon entrainement pour le bac . Petits grésillements en début de vidéo. Désolé .
Cryptography: Transposition Cipher
 
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This lesson explains how to encrypt and decrypt a message using a transposition cipher. Site: http://mathispower4u.com
Views: 57038 Mathispower4u
Encodage de l'information 2 : Compression
 
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Voici la suite de la vidéo sur les représentations binaires (https://www.youtube.com/watch?v=y2e7RuFd5gU&t=253s), je présente ici la compression de données. Contenu : - Arbre d'encodage et dictionnaire d'encodage - Compression sans pertes - Algorithme de Huffman - Introduction à la compression avec pertes (plus de détails ici : https://www.youtube.com/watch?v=a3bu2U74agw&t=16s)
Views: 2034 L'informateur
Affine Cipher - Decryption (Known Plaintext Attack)
 
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In this video I talk about ways to decrypt the Affine Cipher when the key is NOT known. Specifically, I go over an example of the known plaintext attack. 3^(-1) = 9 (mod 26) math worked out (Euclidean Algorithm): 1. Forwards: 26 = 3(8) + 2 3 = 2(1) + 1 2. Backwords: 1 = 3 - 2(1) 1 = 3(1) - (26 - 3(8))(1) 1 = 3(1) - 26 + 3(8) 1 + 26 = 3(9) 1 (mod 26) = 3(9) Hence 9 is the inverse. Links: -Affine Encryption: https://www.youtube.com/watch?v=_E8rSP0uAIY -Affine Decryption (Known Key): https://www.youtube.com/watch?v=XFxFPBKFVe8 -Euclidean Algorithm: https://www.youtube.com/watch?v=K5nbGbN5Trs
Views: 19085 Theoretically
3 - Géométrie analytique et fonction affine | Entrée CAFOP 2017
 
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3 - Géométrie analytique et fonction affine | Entrée CAFOP 2017 par Clément BOULONNE (http://cbmaths.fr) Enoncé : https://www.facebook.com/LIPMATHS/posts/1538244572893230 Crédits musique : Hox Vox – Francis Picabia http://goo.gl/CWCS2R (Musique sous licence libre BYNCND – avec l'aimable autorisation de diffusion donnée par son créateur) LIENS UTILES : - Groupe Facebook « Le distributeur de problèmes » : https://goo.gl/kxgWUH (inscrivez-vous pour pouvoir poster vos suggestions de problèmes pour les Let's Maths) - Abonnez-vous à la chaîne : https://goo.gl/8HdPls - Facebook : https://www.facebook.com/CBMaths1/ - Twitter : https://twitter.com/CBMaths1 - Blog : http://cbmaths.fr
Views: 441 CBMaths
affine cipher in python
 
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Implementation of Affine Cipher in Python. Like and share. It's FREE too :) Download source code at: https://drive.google.com/file/d/0B61-MHkMYqM4enphOWN3WmxsUDg/ Follow us on Facebook https://www.facebook.com/AllTech-1089946481026048/
Views: 818 AllTech
affine cipher in java
 
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Implementation in Java of Affine Cipher. Like and share. It's FREE too :) Download source code at: https://drive.google.com/file/d/0B61-MHkMYqM4aG42Wm9oR1Jaa3c/ Follow us on Facebook https://www.facebook.com/AllTech-1089946481026048/ Play Lists Swift https://www.youtube.com/playlist?list=PLOGAj7tCqHx9C08vyhSMciLtkMSPiirYr All https://www.youtube.com/channel/UCBGENnRMZ3chHn_9gkcrFuA/playlists JavaScript https://www.youtube.com/playlist?list=PLOGAj7tCqHx_grLMl0A0yC8Ts_ErJMJft c# https://www.youtube.com/playlist?list=PLOGAj7tCqHx9H5dGNA4TGkmjKGOfiR4gk Java https://www.youtube.com/playlist?list=PLOGAj7tCqHx-ey9xikbXOfGdbvcOielRw Amazon Lumberyard Game Engine https://www.youtube.com/playlist?list=PLOGAj7tCqHx-IZssU8ItkRAXstlyIWZxq
Views: 900 AllTech
Java #3 La classe personnage
 
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Cours netprof.fr de Informatique / Java Prof : Formation-facile
Views: 1324 netprof
Visual Basic Tutorial: How to Encrypt and Decrypt Data
 
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download code: http://www.krob636.com/codesamples/xor.zip This video shows how you can make a simple 'encryption' and 'decryption' program by shifting the ASCII codes. This scrambles the text, making it unreadable for people who were not meant to see it. Note: This encryption may be all you need to conceal your information within your text; however, it can be decoded by performing frequency analysis on your cipher-text (encrypted text). Frequency analysis relies on a cipher failing to hide the fact that certain characters of the alphabet appear more often than others. Following this tutorial, I will be making a tutorial on stronger encryption schemes.
Views: 36051 KRob314to636
MATLAB
 
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La Magie des Maths de Prépa (1/2) - L'algèbre
 
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Dans cette série, je propose de vous révéler la magie des mathématiques des classes préparatoires aux Grandes Écoles. Ce premier épisode porte sur l'algèbre. Voici le second : https://www.youtube.com/watch?v=DRciHKXWneA. Visiter la chaîne francophone de Science4All :https://www.youtube.com/channel/UC0NCbj8CxzeCGIF6sODJ-7A Chapitre 1 - Al-Jabr (1:13) Chapitre 2 - La géométrie algébrique (12:11) Chapitre 3 - La théorie des nombres (17:51) Chapitre 4 - L'algèbre moderne (29:04) Chapitre 5 - L'algèbre linéaire (40:51) Aidez-moi à m'améliorer en remplissant le questionnaire suivant : https://docs.google.com/forms/d/1asI9wJ1jrnMWjpWaO29XvORSIK-ZQD0G_Ivt5m-It5M/viewform?usp=send_form https://docs.google.com/forms/d/1asI9wJ1jrnMWjpWaO29XvORSIK-ZQD0G_Ivt5m-It5M/viewanalytics Pour en savoir plus, allez-voir ces liens ! La magie de l'algèbre : http://www.science4all.org/le-nguyen-hoang/algebra/ Ellipses, paraboles et hyperboles : http://www.science4all.org/le-nguyen-hoang/ellipses-parabolas-hyperbolas/ Cryptographie et théorie des nombres : http://www.science4all.org/scottmckinney/cryptography-and-number-theory/ Cryptographie et physique quantique : http://www.science4all.org/scottmckinney/cryptography-and-quantum-physics/ P versus NP : http://www.science4all.org/le-nguyen-hoang/pnp/ Théorie de Galois : http://www.science4all.org/le-nguyen-hoang/galois-theory/ Relativité restreinte : http://www.science4all.org/le-nguyen-hoang/spacetime-of-special-relativity/ Relativité générale : http://www.science4all.org/le-nguyen-hoang/spacetime-of-general-relativity/ Algèbre linéaire : http://www.science4all.org/le-nguyen-hoang/linear-algebra/ Programmation linéaire : http://www.science4all.org/le-nguyen-hoang/linear-programming/ Physique quantique : http://www.science4all.org/le-nguyen-hoang/quantum-mechanics/ Merci à toutes les participantes concernées de près ou de loin par ce projet ! Musiques : Jason Shaw (http://www.audionautix.com/index.php) J. Lang, Snowflake, Admiral Bob, Onlymeith, Colab (http://dig.ccmixter.org) Chris Zabriskie, Kevin MacLeod (http://freemusicarchive.org)
Views: 147248 Science4All (english)
Linear Algebra Application: The Hill Cipher
 
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This is an introduction of the application of linear algebra in cryptography: the Hill Cipher. The basic encryption and decryption methods are introduced. Also, one kind of the cipher attacks, the known plaintext attack, is also included.
Views: 12214 Patricia Gong
BAC S Maths - Métropole 2015 - Exercice SPÉ (Arithmétique, matrices)
 
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- Arithmétique - Matrice - Marche aléatoire - Suites géométriques 👍 Site officiel : http://www.maths-et-tiques.fr Twitter : https://twitter.com/mtiques Facebook : https://www.facebook.com/mathsettiques/ Instagram : https://www.instagram.com/yvanmonka/
Views: 16763 Yvan Monka
affine cipher in c#
 
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Implementation of Affine Cipher in C#. Like and share. It's FREE too :) Download source code at: https://drive.google.com/file/d/0B61-MHkMYqM4cXJIX1N2Vkh2S1k/ Follow us on Facebook https://www.facebook.com/AllTech-1089946481026048/ Play Lists Swift https://www.youtube.com/playlist?list=PLOGAj7tCqHx9C08vyhSMciLtkMSPiirYr All https://www.youtube.com/channel/UCBGENnRMZ3chHn_9gkcrFuA/playlists JavaScript https://www.youtube.com/playlist?list=PLOGAj7tCqHx_grLMl0A0yC8Ts_ErJMJft c# https://www.youtube.com/playlist?list=PLOGAj7tCqHx9H5dGNA4TGkmjKGOfiR4gk Java https://www.youtube.com/playlist?list=PLOGAj7tCqHx-ey9xikbXOfGdbvcOielRw Amazon Lumberyard Game Engine https://www.youtube.com/playlist?list=PLOGAj7tCqHx-IZssU8ItkRAXstlyIWZxq
Views: 783 AllTech
Applied Cryptography: Implementing the Stream Cipher - Java (3/3)
 
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Previous video: https://youtu.be/iyS8xLjVmH4 Next video: https://youtu.be/zbdRLDXuPgw
Views: 568 Leandro Junes
Row Transposition Cipher Encryption / Decryption - شرح بالعربي - Subtitled
 
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شرح كامل للتشفير و فك التشفير عن طريق Row Transposition Cipher (شيفرة تبديل الصفوف \ المصفوفات) بطريقة مبسطة مع حل مثال. - سيف بدران Information Security and Cryptography - Row Transposition Cipher Encyption + Decryption Fully Explained with Example with English subtitles Done By: Saif Badran http://www.facebook.com/saif.badran iTeam Academic Group - JU https://youtu.be/3S-dEoxW1kk
Views: 29495 iAcademy
Hill Cipher Matrix
 
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Hill Cipher Matrix
Views: 16505 Keith Zimmerman
vigenere
 
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Views: 58736 CS50
matrix inverse mod N
 
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Views: 16190 Jeff Suzuki
Hill Cipher Encryption and Decryption
 
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n matrix chosen. Each block of plaintext letters is then converted into a vector of numbers and is dotted with the matrix. The results are then co... Contributed by: Greg Wilhelm
Views: 7849 wolframmathematica
Find the Determinant of a 2x2 Matrix - Example 1
 
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An example of finding the determinant of a 2-by-2 matrix.
Views: 299 The Infinite Looper

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