Канал: Cryptography for Everybody

Breaking the M-209 Cipher Machine using Machine Learning in a Known-Plaintext Scenario

Breaking the M-209 Cipher Machine using Machine Learning in a Known-Plaintext Scenario

Introduction to Cloud Forensics (Full Lecture Video)

Introduction to Cloud Forensics (Full Lecture Video)

The Chinese Cipher ShāngMì 4 (SM4, 商密4) Explained

The Chinese Cipher ShāngMì 4 (SM4, 商密4) Explained

Introduction to Malware and Malware Analysis (Full Lecture Video)

Introduction to Malware and Malware Analysis (Full Lecture Video)

How a 1674 Encrypted Letter Traveled 10,000 km

How a 1674 Encrypted Letter Traveled 10,000 km

How We Broke the Ciphers of Holy Roman Emperor Maximilian II

How We Broke the Ciphers of Holy Roman Emperor Maximilian II

The Affine Cipher – A Mathematical Substitution Cipher

The Affine Cipher – A Mathematical Substitution Cipher

The German SZ42 Cipher Machine Explained

The German SZ42 Cipher Machine Explained

Introduction to Memory Forensics (Full Lecture Video)

Introduction to Memory Forensics (Full Lecture Video)

The Grandpré Cipher Explained

The Grandpré Cipher Explained

The Simplified Advanced Encryption Standard (S-AES) Explained

The Simplified Advanced Encryption Standard (S-AES) Explained

Digital File Signatures – How Do They Protect Your Computer?

Digital File Signatures – How Do They Protect Your Computer?

ElsieFour – A Low-Tech Cipher Inspired by RC 4

ElsieFour – A Low-Tech Cipher Inspired by RC 4

How To Install and Use CrypTool 2 in Linux

How To Install and Use CrypTool 2 in Linux

CrypTool 2 Highlights of the Last Three Years – CrypTool Symposium 2023 in Munich

CrypTool 2 Highlights of the Last Three Years – CrypTool Symposium 2023 in Munich

Huffman Code Explained – An Optimal Prefix Code

Huffman Code Explained – An Optimal Prefix Code

The British Typex Cipher Machine Explained

The British Typex Cipher Machine Explained

The GRANIT/160 Cipher Explained – A GDR Stasi Spy Cipher

The GRANIT/160 Cipher Explained – A GDR Stasi Spy Cipher

Deciphering Mary Stuart's Lost Letters – A Talk Given by George Lasry

Deciphering Mary Stuart's Lost Letters – A Talk Given by George Lasry

The Bazeries Cipher Explained – A Classical Cipher Based on Substitution and Transposition

The Bazeries Cipher Explained – A Classical Cipher Based on Substitution and Transposition

The Four-Square Cipher Explained

The Four-Square Cipher Explained

The Stream Cipher Trivium Explained

The Stream Cipher Trivium Explained

The Josse Cipher – A French Army Cipher from the late 19th Century

The Josse Cipher – A French Army Cipher from the late 19th Century

The Trifid Cipher Explained

The Trifid Cipher Explained

Easily Share Your Contact via a QR Code – How to Create vCards with CrypTool 2

Easily Share Your Contact via a QR Code – How to Create vCards with CrypTool 2

The Bifid Cipher Explained

The Bifid Cipher Explained

The Book Cipher Explained – Encryption & Decryption Using a Book

The Book Cipher Explained – Encryption & Decryption Using a Book

The Soviet/Russian Block Cipher GOST Magma Explained

The Soviet/Russian Block Cipher GOST Magma Explained

Three Years Cryptography for Everybody

Three Years Cryptography for Everybody

The Syllabary Cipher Explained

The Syllabary Cipher Explained

The Nihilist Cipher Explained

The Nihilist Cipher Explained

The Bacon Cipher Explained

The Bacon Cipher Explained

Basics of Cryptology – Part 25 (Cryptography – Block Cipher Padding)

Basics of Cryptology – Part 25 (Cryptography – Block Cipher Padding)

The Mexican Army Cipher Disk Explained and Broken

The Mexican Army Cipher Disk Explained and Broken

Let DALL·E Paint Some Cryptography – What Does it Know About Cryptography?

Let DALL·E Paint Some Cryptography – What Does it Know About Cryptography?

Generate Mixed Encryption Alphabets Using ACA Keying Schemes

Generate Mixed Encryption Alphabets Using ACA Keying Schemes

I Decrypted an Enigma Message Transmitted by Radio

I Decrypted an Enigma Message Transmitted by Radio

Decipher Secret Messages in the Videogame Stray

Decipher Secret Messages in the Videogame Stray

Highlights of the International Conference on Historical Cryptology 2022

Highlights of the International Conference on Historical Cryptology 2022

Basics of Cryptology – Part 24 (Cryptography – Block Cipher Modes of Operation)

Basics of Cryptology – Part 24 (Cryptography – Block Cipher Modes of Operation)

A Mysterious Cipher in the Chickenhare Movie

A Mysterious Cipher in the Chickenhare Movie

I Created an Enigma Machine with 256-Pin Rotors – The ASCII Enigma

I Created an Enigma Machine with 256-Pin Rotors – The ASCII Enigma

Zero-Knowledge Proof Explained – Peggy Knows a Secret but Doesn't Reveal It

Zero-Knowledge Proof Explained – Peggy Knows a Secret but Doesn't Reveal It

The Columnar Transposition Cipher Explained and Broken

The Columnar Transposition Cipher Explained and Broken

I Created a Crazy Text-Based AES-Like Cipher – A Cipher Built Using Only Classical Ciphers

I Created a Crazy Text-Based AES-Like Cipher – A Cipher Built Using Only Classical Ciphers

Perceptual Hashing To Compare Images Explained

Perceptual Hashing To Compare Images Explained

Let's Create Our Own Homophonic Substitution Cipher

Let's Create Our Own Homophonic Substitution Cipher

Working with Binary Data – The New Byte Array Operations Component

Working with Binary Data – The New Byte Array Operations Component

Beaufort Cipher Explained and Broken

Beaufort Cipher Explained and Broken

The IV Reuse Attack on Samsung Mobile Phones Explained

The IV Reuse Attack on Samsung Mobile Phones Explained

Break a Cascade of a Simple Substitution and a Vigenère Cipher

Break a Cascade of a Simple Substitution and a Vigenère Cipher

Basics of Cryptology – Part 23 (Cryptography – Modern Hybrid Encryption)

Basics of Cryptology – Part 23 (Cryptography – Modern Hybrid Encryption)

How To Use KeePass 2 To Securely Manage and Store Passwords

How To Use KeePass 2 To Securely Manage and Store Passwords

An Encrypted Description of a Secret Magic Machine in an 18th Century Alchemy Book

An Encrypted Description of a Secret Magic Machine in an 18th Century Alchemy Book

End-to-End Encryption Explained – This is How Every Messenger Should Encrypt Data

End-to-End Encryption Explained – This is How Every Messenger Should Encrypt Data

Reddit Users Solved my Musical Cipher Challenge in 48 Hours

Reddit Users Solved my Musical Cipher Challenge in 48 Hours

A Musical Cipher Challenge – End of 2021 – Win a Crypto Book

A Musical Cipher Challenge – End of 2021 – Win a Crypto Book

Blockchain Explained – The Basics of Bitcoin – How Blocks, Mining, and Transactions Work

Blockchain Explained – The Basics of Bitcoin – How Blocks, Mining, and Transactions Work

AES – Key Schedule/Key Expansion Explained

AES – Key Schedule/Key Expansion Explained

AES – The Advanced Encryption Standard Explained

AES – The Advanced Encryption Standard Explained

Detect the Cipher Type With Artificial Neural Networks (Deep Learning)

Detect the Cipher Type With Artificial Neural Networks (Deep Learning)

How Prisoners in WWII and Vietnam War Secretly Communicated

How Prisoners in WWII and Vietnam War Secretly Communicated

Let's Create and Decode QR Codes

Let's Create and Decode QR Codes

How to Transcribe a Ciphertext for a Later Cryptanalysis

How to Transcribe a Ciphertext for a Later Cryptanalysis

Basics of Cryptology – Part 22 (Cryptography – Kerckhoffs' Principle & Modern Cryptographic Goals)

Basics of Cryptology – Part 22 (Cryptography – Kerckhoffs' Principle & Modern Cryptographic Goals)

I Found a Mysterious Paper in my 17th Century Book

I Found a Mysterious Paper in my 17th Century Book

Let's Decipher Two Encrypted English Postcards – Secret Messages From the Past Revealed

Let's Decipher Two Encrypted English Postcards – Secret Messages From the Past Revealed

Numbers Stations Explained – Let’s Simulate Our Own Numbers Station!

Numbers Stations Explained – Let’s Simulate Our Own Numbers Station!

Chaocipher – The Cipher Nobody Wanted

Chaocipher – The Cipher Nobody Wanted

The Straddling Checkerboard Cipher Explained

The Straddling Checkerboard Cipher Explained

The Dining Cryptographers Problem – Did the NSA Pay?

The Dining Cryptographers Problem – Did the NSA Pay?

The U.S. SIGABA Cipher Machine – An Incredible Encryption Device

The U.S. SIGABA Cipher Machine – An Incredible Encryption Device

Small Update on the Encrypted Edward Snyder Postcard

Small Update on the Encrypted Edward Snyder Postcard

How We Deciphered a Postcard Related to a 100-year old Murder Case

How We Deciphered a Postcard Related to a 100-year old Murder Case

What is New in the CrypTool 2 Release 2021.1?

What is New in the CrypTool 2 Release 2021.1?

The Spanish Strip Cipher Explained (and Broken) – A Civil War Encryption Method

The Spanish Strip Cipher Explained (and Broken) – A Civil War Encryption Method

Let's Decipher a Letter of the Silent Film Star Mary Miles Minter That Lead to a Scandal

Let's Decipher a Letter of the Silent Film Star Mary Miles Minter That Lead to a Scandal

Encryption Before Compression or Compression Before Encryption?

Encryption Before Compression or Compression Before Encryption?

The BB84 Quantum Key Exchange Protocol Explained

The BB84 Quantum Key Exchange Protocol Explained

Let's Encrypt Text Securely with AES and PKCS#5

Let's Encrypt Text Securely with AES and PKCS#5

The U.S. Army M-138 Strip Cipher

The U.S. Army M-138 Strip Cipher

Visual Cryptography with Images

Visual Cryptography with Images

Visual Cryptography Explained

Visual Cryptography Explained

Nomenclator Ciphers Explained and Created – The Most Used Type of Cipher in History

Nomenclator Ciphers Explained and Created – The Most Used Type of Cipher in History

Vigenère Cipher Cryptanalysis Revisited – The Undeciverable Cipher Deciphered

Vigenère Cipher Cryptanalysis Revisited – The Undeciverable Cipher Deciphered

Let's Break My Self-Made Cryptographic Challenges From HistoCrypt 2019

Let's Break My Self-Made Cryptographic Challenges From HistoCrypt 2019

Break (Reduced) RSA Using Factorization

Break (Reduced) RSA Using Factorization

Zodiac Killer Ciphers – Let's have a Look at Unicity Distances With Excel

Zodiac Killer Ciphers – Let's have a Look at Unicity Distances With Excel

The Data Encryption Standard (DES) Cipher Explained – How Does it Work?

The Data Encryption Standard (DES) Cipher Explained – How Does it Work?

Basics of Cryptology – Part 21 (Cryptanalysis – The Index of Coincidence (IoC))

Basics of Cryptology – Part 21 (Cryptanalysis – The Index of Coincidence (IoC))

Let's Use AES in CrypTool 2 to Encrypt Files Using a Password

Let's Use AES in CrypTool 2 to Encrypt Files Using a Password

Break Encrypted Postcards on New Year's Day

Break Encrypted Postcards on New Year's Day

My Cryptologic Highlights of 2020

My Cryptologic Highlights of 2020

Basics of Cryptology – Part 20 (Cryptanalysis – Cost & Fitness Functions - Language Models)

Basics of Cryptology – Part 20 (Cryptanalysis – Cost & Fitness Functions - Language Models)

Decrypt the Complete Zodiac Killer Z-340 Ciphertext

Decrypt the Complete Zodiac Killer Z-340 Ciphertext

Is David Oranchak's Zodiac Killer Cipher Z-340 Solution Correct???

Is David Oranchak's Zodiac Killer Cipher Z-340 Solution Correct???

10 - Automatic Translation of CrypTool 2 To a New Language

10 - Automatic Translation of CrypTool 2 To a New Language

Basics of Cryptology – Part 19 (Cryptanalysis – Unicity Distance & Check and Proof Cipher Solutions)

Basics of Cryptology – Part 19 (Cryptanalysis – Unicity Distance & Check and Proof Cipher Solutions)

The Trithemius Cipher and the Tabula Recta – Let's Create and Break Them

The Trithemius Cipher and the Tabula Recta – Let's Create and Break Them

Showing the Oldest Printed Book on Cryptography: Trithemius‘ „Polygraphiae“ and www.cryptobooks.org

Showing the Oldest Printed Book on Cryptography: Trithemius‘ „Polygraphiae“ and www.cryptobooks.org

Pigpen Cipher Explained (and Broken) – The Most Famous Cipher of the Freemasons

Pigpen Cipher Explained (and Broken) – The Most Famous Cipher of the Freemasons

How to Hide Secret Data in Images – Steganography Part 2

How to Hide Secret Data in Images – Steganography Part 2

How to Hide Secret Data in Text – Steganography Part 1

How to Hide Secret Data in Text – Steganography Part 1

Basics of Cryptology – Part 18 (Cryptography – Random Number Generators)

Basics of Cryptology – Part 18 (Cryptography – Random Number Generators)

Break a DES-Encrypted Ciphertext With Distributed Computing

Break a DES-Encrypted Ciphertext With Distributed Computing

Basics of Cryptology – Part 17 (Cryptography/Cryptanalysis – Keyspace and Keyspace Size)

Basics of Cryptology – Part 17 (Cryptography/Cryptanalysis – Keyspace and Keyspace Size)

Let's Create a Secure AES-Encrypted Video Chat Noone Can Decipher

Let's Create a Secure AES-Encrypted Video Chat Noone Can Decipher

Break Yet Another (the 2nd) Encrypted Postcard from 1907

Break Yet Another (the 2nd) Encrypted Postcard from 1907

Enigma Cryptanalysis Revisited – New State-of-the-Art Attacks on the Enigma Machine in CrypTool 2

Enigma Cryptanalysis Revisited – New State-of-the-Art Attacks on the Enigma Machine in CrypTool 2

Basics of Cryptology – Part 16 (Modern Cryptography – The Avalanche Effect)

Basics of Cryptology – Part 16 (Modern Cryptography – The Avalanche Effect)

Break an Encrypted Postcard from 1907

Break an Encrypted Postcard from 1907

Crypto Challenge Contest – Video 5 (End)

Crypto Challenge Contest – Video 5 (End)

Crypto Challenge Contest – Video 4

Crypto Challenge Contest – Video 4

Let's Program a Hash Preimage Searcher to Break Passwords

Let's Program a Hash Preimage Searcher to Break Passwords

Crypto Challenge Contest – Video 3

Crypto Challenge Contest – Video 3

Break an Encrypted Letter of a Child Killer

Break an Encrypted Letter of a Child Killer

Crypto Challenge Contest – Video 2

Crypto Challenge Contest – Video 2

Basics of Cryptology – Part 15 (Modern Cryptanalysis – Rainbow Tables)

Basics of Cryptology – Part 15 (Modern Cryptanalysis – Rainbow Tables)

Crypto Challenge Contest – Video 1

Crypto Challenge Contest – Video 1

The U.S. Army M-94 Cylinder Cipher Explained – A Strong Hand Cipher For the Usage on the Battlefield

The U.S. Army M-94 Cylinder Cipher Explained – A Strong Hand Cipher For the Usage on the Battlefield

How Morse Code Works – A Code From the 19th Century Which Is Still Used Today

How Morse Code Works – A Code From the 19th Century Which Is Still Used Today

Basics of Cryptology – Part 14 (Modern Cryptography – Passwords)

Basics of Cryptology – Part 14 (Modern Cryptography – Passwords)

How to Create a Grille Cipher – also by Hand :-)

How to Create a Grille Cipher – also by Hand :-)

Tips and Tricks for Working with CrypTool 2 – Data Types (For Classic and Modern Ciphers)

Tips and Tricks for Working with CrypTool 2 – Data Types (For Classic and Modern Ciphers)

Basics of Cryptology – Part 13 (Modern Cryptography – Cryptographic Hash Functions)

Basics of Cryptology – Part 13 (Modern Cryptography – Cryptographic Hash Functions)

How to Break an Unknown Cipher

How to Break an Unknown Cipher

Basics of Cryptology – Part 12 (Modern Asymmetric Cryptography – Diffie-Hellman Key Exchange)

Basics of Cryptology – Part 12 (Modern Asymmetric Cryptography – Diffie-Hellman Key Exchange)

Create your own Codebook Cipher as Used in The Zimmermann Telegram

Create your own Codebook Cipher as Used in The Zimmermann Telegram

Privacy-Friendly Contact Tracing – How Do the Protocols Work in Corona Tracing Apps?

Privacy-Friendly Contact Tracing – How Do the Protocols Work in Corona Tracing Apps?

Basics of Cryptology – Part 11 (Modern Cryptography – Asymmetric Ciphers – RSA)

Basics of Cryptology – Part 11 (Modern Cryptography – Asymmetric Ciphers – RSA)

09 - Create a Unit Test for the Component (CrypTool 2 Development Series)

09 - Create a Unit Test for the Component (CrypTool 2 Development Series)

Basics of Cryptology – Part 10 (Modern Cryptanalysis of Classical Ciphers – Genetic Algorithm)

Basics of Cryptology – Part 10 (Modern Cryptanalysis of Classical Ciphers – Genetic Algorithm)

Basics of Cryptology – Part 9 (Modern Cryptography – Block Ciphers – Feistel Ciphers & SDES)

Basics of Cryptology – Part 9 (Modern Cryptography – Block Ciphers – Feistel Ciphers & SDES)

Basics of Cryptology – Part 8 (Modern Cryptanalysis of Classical Ciphers – Hill Climbing)

Basics of Cryptology – Part 8 (Modern Cryptanalysis of Classical Ciphers – Hill Climbing)

How Does the M-209 Cipher Machine Work? – A Brilliant Non-Electrical Encryption Device

How Does the M-209 Cipher Machine Work? – A Brilliant Non-Electrical Encryption Device

Basics of Cryptology – Part 7 (Modern Cryptography – Perfect Ciphers and One-Time Pad)

Basics of Cryptology – Part 7 (Modern Cryptography – Perfect Ciphers and One-Time Pad)

Basics of Cryptology – Part 6 (Modern Cryptography – Block Ciphers – SPN Ciphers)

Basics of Cryptology – Part 6 (Modern Cryptography – Block Ciphers – SPN Ciphers)

Basics of Cryptology – Part 5 (Modern Cryptography – Stream Ciphers – RC4)

Basics of Cryptology – Part 5 (Modern Cryptography – Stream Ciphers – RC4)

What is New in the CrypTool 2 Release 2020.1?

What is New in the CrypTool 2 Release 2020.1?

Basics of Cryptology – Part 4 (Modern Cryptanalysis – Shannon's Entropy and Brute-Force Attack)

Basics of Cryptology – Part 4 (Modern Cryptanalysis – Shannon's Entropy and Brute-Force Attack)

How Does the Hill Cipher Work? – A Brilliant and Strong Cipher Based on Invertible Matrices

How Does the Hill Cipher Work? – A Brilliant and Strong Cipher Based on Invertible Matrices

Basics of Cryptology – Part 3 (Modern Symmetric Ciphers – Stream Ciphers & Block Ciphers)

Basics of Cryptology – Part 3 (Modern Symmetric Ciphers – Stream Ciphers & Block Ciphers)

Basics of Cryptology – Part 2 (Cryptanalysis – Terminology & Classical Ciphers)

Basics of Cryptology – Part 2 (Cryptanalysis – Terminology & Classical Ciphers)

Basics of Cryptology – Part 1 (Cryptography – Terminology & Classical Ciphers)

Basics of Cryptology – Part 1 (Cryptography – Terminology & Classical Ciphers)

Break the Double Columnar Transposition Challenge (Doppelwürfel)

Break the Double Columnar Transposition Challenge (Doppelwürfel)

Enigma Machine – Part 2 of 2 – Let's break it!

Enigma Machine – Part 2 of 2 – Let's break it!

08 - Upload Component to CrypToolStore (CrypTool 2 Development Series)

08 - Upload Component to CrypToolStore (CrypTool 2 Development Series)

Enigma Machine – Part 1 of 2 – How does it work?

Enigma Machine – Part 1 of 2 – How does it work?

Break a Playfair Cipher – A Strong Hand Cipher Invented in the 19th Century

Break a Playfair Cipher – A Strong Hand Cipher Invented in the 19th Century

How does Navajo Code Talking work? – The Probably Most Secure U.S. Code in the Pacific War

How does Navajo Code Talking work? – The Probably Most Secure U.S. Code in the Pacific War

Break a World War I ADFGVX Cipher – A Cipher Germans Believed was Unbreakable

Break a World War I ADFGVX Cipher – A Cipher Germans Believed was Unbreakable

Break the first two Kryptos Ciphertexts from the CIA Headquarters Building (Vigenère Ciphers)

Break the first two Kryptos Ciphertexts from the CIA Headquarters Building (Vigenère Ciphers)

Break the Zodiac Killer's Z-408 Cipher (Homophonic Substitution Cipher)

Break the Zodiac Killer's Z-408 Cipher (Homophonic Substitution Cipher)

Break a Columnar Transposition Cipher – A Classical Hand Encryption Method

Break a Columnar Transposition Cipher – A Classical Hand Encryption Method

Break a Simple Monoalphabetic Substitution Cipher

Break a Simple Monoalphabetic Substitution Cipher

Break a Scytale – A Cipher Device Used by Spartan Soldiers More than 2500 Years Ago

Break a Scytale – A Cipher Device Used by Spartan Soldiers More than 2500 Years Ago

Break a Caesar Cipher – One of the Oldest Known Encryption Method of the Ancient World

Break a Caesar Cipher – One of the Oldest Known Encryption Method of the Ancient World

07 - Create Presentation for the Component (CrypTool 2 Development Series)

07 - Create Presentation for the Component (CrypTool 2 Development Series)

Short Introduction to CrypTool 2

Short Introduction to CrypTool 2

06 - Create Template for the Component (CrypTool 2 Development Series)

06 - Create Template for the Component (CrypTool 2 Development Series)

Status of CrypTool 2 - Talk held by Nils Kopal during the CrypTool 20+ years meeting

Status of CrypTool 2 - Talk held by Nils Kopal during the CrypTool 20+ years meeting

05 - Create Online Help Page (CrypTool 2 Development Series)

05 - Create Online Help Page (CrypTool 2 Development Series)

04 - Internationalization of the Component (CrypTool 2 Development Series)

04 - Internationalization of the Component (CrypTool 2 Development Series)

01 - Installation of TortoiseSVN, VS2019, and Plugin Template (CrypTool 2 Development Series)

01 - Installation of TortoiseSVN, VS2019, and Plugin Template (CrypTool 2 Development Series)

02 - CrypTool 2 Terminology and Usage (CrypTool 2 Development Series)

02 - CrypTool 2 Terminology and Usage (CrypTool 2 Development Series)

03 - Create a new CrypTool 2 Component (CrypTool 2 Development Series)

03 - Create a new CrypTool 2 Component (CrypTool 2 Development Series)