In cryptography, a Feistel cipher is a symmetric structure used in the construction of block ciphers, named after the German-born physicist and cryptographer Horst Feistel who did pioneering research while working for IBM (USA); it is also commonly known as a Feistel network. A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES). The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key schedule. Therefore the size of the code or circuitry required to implement such a cipher is nearly halved.
A Feistel network is an iterated cipher with an internal function called a round function.
Historical
Feistel networks were first seen commercially in IBM's Lucifer cipher, designed by Horst Feistel and Don Coppersmith in 1973. Feistel networks gained respectability when the U.S. Federal Government adopted the DES (a cipher based on Lucifer, with changes made by the NSA). Like other components of the DES, the iterative nature of the Feistel construction makes implementing the cryptosystem in hardware easier (particularly on the hardware available at the time of DES's design).
One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.
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published: 19 Feb 2020
Feistel Cipher Structure
Network Security: Feistel Cipher Structure
Topics discussed:
1) Feistel Cipher Structure and explanation of activities.
2) The encryption and decryption process of the Feistel Cipher.
3) Various Design Features of the Feistel Cipher Structure and an explanation of all the Design Features.
4) Explanation of all the Design Features such as Block Size, Key Size, Number of Rounds, Subkey Generation Algorithm, Round Function, Fast Encryption/Decryption Algorithm, and Ease of Analysis.
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In this video we discussed the procedure of Feistel Cipher structure.
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published: 29 Jan 2019
Feistel Block Cipher Animation
Shows the basics of a Feistel Block Cipher, which takes a plaintext message input M and a key K to produce a ciphertext C.
published: 16 Mar 2016
Feistel Network explained
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All you need to know about the Feistel network, one of the buildings blocks of DES and Symmetric Encryption generally.
Symmetric Encryption: https://youtu.be/VSiNXsNb9Q8
published: 16 Apr 2023
Muhammad Farooq-i-Azam: Feistel Cipher Structure Step by Step Simple Example
Feistel cipher structure or Feistel cipher network is the building block of many block ciphers and encryption algorithms using secret key encryption. For example, Feistel cipher structure is used in the symmetric key Data Encryption Algorithm (DEA) used by the Data Encryption Standard (DES).
The Feistel cipher is explained with the help a detailed, easy and step by step example. Both the encryption and decryption processes of the Feistel cipher are explained in the worked example.
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#cybersecurity #informationsecurity #encryption #decryption #cryptogratis #cipher #secret #confidential
published: 17 May 2021
Feistel Cipher | Cryptography and Network Security
In this video, we delve into the core principles of the Feistel Cipher, its unique structure, and the cryptographic operations that make it a robust choice for ensuring the confidentiality and integrity of sensitive information.
🔍 Key Insights:
1️⃣ Understanding Feistel Cipher: An in-depth look at what makes the Feistel Cipher distinctive and its applications in the realm of cryptography.
2️⃣ Structure and Components: Explore the architecture of the Feistel Cipher, breaking down its components and how they contribute to the encryption process.
3️⃣ Encryption and Decryption: Gain insights into the step-by-step processes involved in both encrypting and decrypting data using the Feistel Cipher.
4️⃣ Feistel Cipher in Practice: Real-world examples and applications showcasing the effectiveness ...
published: 21 Jul 2023
Feistel Cipher Explained in Hindi ll Information and Cyber Security Course
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published: 06 Mar 2019
FIESTEL CIPHER STRUCTURE in Cryptography
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In this video, i have explained the concept of FIESTEL CIPHER STRUCTURE in Cryptography and Network Security.
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what is fiestel cipher structure
what is fiestel cipher in Cryptography
fiestel cipher structure in Cryptography and network security
fiestel cipher structure in Cryptography
fiestel cipher structure in network security
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published: 24 Sep 2019
Aleksei Udovenko | Algebraic Insights into the Secret Feistel Network
One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.
https://www.facebook.com/computerphile
https://t...
One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.
https://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: https://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.
https://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: https://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Network Security: Feistel Cipher Structure
Topics discussed:
1) Feistel Cipher Structure and explanation of activities.
2) The encryption and decryption proces...
Network Security: Feistel Cipher Structure
Topics discussed:
1) Feistel Cipher Structure and explanation of activities.
2) The encryption and decryption process of the Feistel Cipher.
3) Various Design Features of the Feistel Cipher Structure and an explanation of all the Design Features.
4) Explanation of all the Design Features such as Block Size, Key Size, Number of Rounds, Subkey Generation Algorithm, Round Function, Fast Encryption/Decryption Algorithm, and Ease of Analysis.
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#NetworkSecurityByNeso #Cryptography #FeistelCipherStructure
Network Security: Feistel Cipher Structure
Topics discussed:
1) Feistel Cipher Structure and explanation of activities.
2) The encryption and decryption process of the Feistel Cipher.
3) Various Design Features of the Feistel Cipher Structure and an explanation of all the Design Features.
4) Explanation of all the Design Features such as Block Size, Key Size, Number of Rounds, Subkey Generation Algorithm, Round Function, Fast Encryption/Decryption Algorithm, and Ease of Analysis.
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Music:
Axol x Alex Skrindo - You [NCS Release]
#NetworkSecurityByNeso #Cryptography #FeistelCipherStructure
In this video we discussed the procedure of Feistel Cipher structure.
See Complete Playlists:
Network Security OR Cryptography
https://www.youtube.com/playli...
In this video we discussed the procedure of Feistel Cipher structure.
See Complete Playlists:
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TOC/Flat:
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In this video we discussed the procedure of Feistel Cipher structure.
See Complete Playlists:
Network Security OR Cryptography
https://www.youtube.com/playlist?list...
TOC/Flat:
https://www.youtube.com/playlist?list...
Technical Mcqs:
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Design and analysis of algorithms:
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python:
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Data Structures:
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Advanced Data Structures:
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Machine Learning:
https://www.youtube.com/playlist?list...
Operating Systems:
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Java Programming:
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C++:
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Programs on c:
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Computer Graphics:
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All you need to know about the Feistel network, one of the buil...
You can buy me a coffee if you want to support the channel: https://buymeacoffee.com/secprivaca
All you need to know about the Feistel network, one of the buildings blocks of DES and Symmetric Encryption generally.
Symmetric Encryption: https://youtu.be/VSiNXsNb9Q8
You can buy me a coffee if you want to support the channel: https://buymeacoffee.com/secprivaca
All you need to know about the Feistel network, one of the buildings blocks of DES and Symmetric Encryption generally.
Symmetric Encryption: https://youtu.be/VSiNXsNb9Q8
Feistel cipher structure or Feistel cipher network is the building block of many block ciphers and encryption algorithms using secret key encryption. For exampl...
Feistel cipher structure or Feistel cipher network is the building block of many block ciphers and encryption algorithms using secret key encryption. For example, Feistel cipher structure is used in the symmetric key Data Encryption Algorithm (DEA) used by the Data Encryption Standard (DES).
The Feistel cipher is explained with the help a detailed, easy and step by step example. Both the encryption and decryption processes of the Feistel cipher are explained in the worked example.
Email: [email protected]
#cybersecurity #informationsecurity #encryption #decryption #cryptogratis #cipher #secret #confidential
Feistel cipher structure or Feistel cipher network is the building block of many block ciphers and encryption algorithms using secret key encryption. For example, Feistel cipher structure is used in the symmetric key Data Encryption Algorithm (DEA) used by the Data Encryption Standard (DES).
The Feistel cipher is explained with the help a detailed, easy and step by step example. Both the encryption and decryption processes of the Feistel cipher are explained in the worked example.
Email: [email protected]
#cybersecurity #informationsecurity #encryption #decryption #cryptogratis #cipher #secret #confidential
In this video, we delve into the core principles of the Feistel Cipher, its unique structure, and the cryptographic operations that make it a robust choice for ...
In this video, we delve into the core principles of the Feistel Cipher, its unique structure, and the cryptographic operations that make it a robust choice for ensuring the confidentiality and integrity of sensitive information.
🔍 Key Insights:
1️⃣ Understanding Feistel Cipher: An in-depth look at what makes the Feistel Cipher distinctive and its applications in the realm of cryptography.
2️⃣ Structure and Components: Explore the architecture of the Feistel Cipher, breaking down its components and how they contribute to the encryption process.
3️⃣ Encryption and Decryption: Gain insights into the step-by-step processes involved in both encrypting and decrypting data using the Feistel Cipher.
4️⃣ Feistel Cipher in Practice: Real-world examples and applications showcasing the effectiveness of the Feistel Cipher in securing data.
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In this video, we delve into the core principles of the Feistel Cipher, its unique structure, and the cryptographic operations that make it a robust choice for ensuring the confidentiality and integrity of sensitive information.
🔍 Key Insights:
1️⃣ Understanding Feistel Cipher: An in-depth look at what makes the Feistel Cipher distinctive and its applications in the realm of cryptography.
2️⃣ Structure and Components: Explore the architecture of the Feistel Cipher, breaking down its components and how they contribute to the encryption process.
3️⃣ Encryption and Decryption: Gain insights into the step-by-step processes involved in both encrypting and decrypting data using the Feistel Cipher.
4️⃣ Feistel Cipher in Practice: Real-world examples and applications showcasing the effectiveness of the Feistel Cipher in securing data.
👉 Download Ekeeda Application & Learn from the best professors with 10+ years of experience.
Subscribe to a Course or Start a Free Trial of Package.
✤ Download the Ekeeda - Learning App for Engineering Courses App here:
➤ Android & iOS: https://ekeeda.com/download.html
Access the Complete Playlist of Subject GATE Algorithms - https://www.youtube.com/playlist?list=PLO4TWepMw7ggN22wYVdfE7KmOcMjNHh4m
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👉 GATE Algorithms (GATE Computer Science and Information Technology): https://ekeeda.com/gate/gate-computer-science-and-information-technology/algorithms
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Hello friends! Welcome to my channel.
My name is Abhishek Sharma.#abhics789
In this video, i have explained the concept of FIESTEL CIPHER STRUCTURE in Cryptogr...
Hello friends! Welcome to my channel.
My name is Abhishek Sharma.#abhics789
In this video, i have explained the concept of FIESTEL CIPHER STRUCTURE in Cryptography and Network Security.
#fiestelStructure #FiestelCipher #NetworkSecurity #Cryptography #AbhishekDit
what is fiestel cipher structure
what is fiestel cipher in Cryptography
fiestel cipher structure in Cryptography and network security
fiestel cipher structure in Cryptography
fiestel cipher structure in network security
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Hello friends! Welcome to my channel.
My name is Abhishek Sharma.#abhics789
In this video, i have explained the concept of FIESTEL CIPHER STRUCTURE in Cryptography and Network Security.
#fiestelStructure #FiestelCipher #NetworkSecurity #Cryptography #AbhishekDit
what is fiestel cipher structure
what is fiestel cipher in Cryptography
fiestel cipher structure in Cryptography and network security
fiestel cipher structure in Cryptography
fiestel cipher structure in network security
If you learned something new do like and share this video with your friends and don't forget to subscribe to my channel :)
There are lectures related to different subjects on this channel.Do check them out, guys.
Substitution and Transposition techniques:
https://youtu.be/bZBVbvNjxKY
Link is given below:
computer graphics:
https://www.youtube.com/playlist?list=PL9FuOtXibFjXwiZuSKOemCso_etrnsZX3
engineering economics:
https://www.youtube.com/playlist?list=PL9FuOtXibFjW3cONv7t08tt1jAoYcsvod
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One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.
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Network Security: Feistel Cipher Structure
Topics discussed:
1) Feistel Cipher Structure and explanation of activities.
2) The encryption and decryption process of the Feistel Cipher.
3) Various Design Features of the Feistel Cipher Structure and an explanation of all the Design Features.
4) Explanation of all the Design Features such as Block Size, Key Size, Number of Rounds, Subkey Generation Algorithm, Round Function, Fast Encryption/Decryption Algorithm, and Ease of Analysis.
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In this video we discussed the procedure of Feistel Cipher structure.
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All you need to know about the Feistel network, one of the buildings blocks of DES and Symmetric Encryption generally.
Symmetric Encryption: https://youtu.be/VSiNXsNb9Q8
Feistel cipher structure or Feistel cipher network is the building block of many block ciphers and encryption algorithms using secret key encryption. For example, Feistel cipher structure is used in the symmetric key Data Encryption Algorithm (DEA) used by the Data Encryption Standard (DES).
The Feistel cipher is explained with the help a detailed, easy and step by step example. Both the encryption and decryption processes of the Feistel cipher are explained in the worked example.
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#cybersecurity #informationsecurity #encryption #decryption #cryptogratis #cipher #secret #confidential
In this video, we delve into the core principles of the Feistel Cipher, its unique structure, and the cryptographic operations that make it a robust choice for ensuring the confidentiality and integrity of sensitive information.
🔍 Key Insights:
1️⃣ Understanding Feistel Cipher: An in-depth look at what makes the Feistel Cipher distinctive and its applications in the realm of cryptography.
2️⃣ Structure and Components: Explore the architecture of the Feistel Cipher, breaking down its components and how they contribute to the encryption process.
3️⃣ Encryption and Decryption: Gain insights into the step-by-step processes involved in both encrypting and decrypting data using the Feistel Cipher.
4️⃣ Feistel Cipher in Practice: Real-world examples and applications showcasing the effectiveness of the Feistel Cipher in securing data.
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Hello friends! Welcome to my channel.
My name is Abhishek Sharma.#abhics789
In this video, i have explained the concept of FIESTEL CIPHER STRUCTURE in Cryptography and Network Security.
#fiestelStructure #FiestelCipher #NetworkSecurity #Cryptography #AbhishekDit
what is fiestel cipher structure
what is fiestel cipher in Cryptography
fiestel cipher structure in Cryptography and network security
fiestel cipher structure in Cryptography
fiestel cipher structure in network security
If you learned something new do like and share this video with your friends and don't forget to subscribe to my channel :)
There are lectures related to different subjects on this channel.Do check them out, guys.
Substitution and Transposition techniques:
https://youtu.be/bZBVbvNjxKY
Link is given below:
computer graphics:
https://www.youtube.com/playlist?list=PL9FuOtXibFjXwiZuSKOemCso_etrnsZX3
engineering economics:
https://www.youtube.com/playlist?list=PL9FuOtXibFjW3cONv7t08tt1jAoYcsvod
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In cryptography, a Feistel cipher is a symmetric structure used in the construction of block ciphers, named after the German-born physicist and cryptographer Horst Feistel who did pioneering research while working for IBM (USA); it is also commonly known as a Feistel network. A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES). The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key schedule. Therefore the size of the code or circuitry required to implement such a cipher is nearly halved.
A Feistel network is an iterated cipher with an internal function called a round function.
Historical
Feistel networks were first seen commercially in IBM's Lucifer cipher, designed by Horst Feistel and Don Coppersmith in 1973. Feistel networks gained respectability when the U.S. Federal Government adopted the DES (a cipher based on Lucifer, with changes made by the NSA). Like other components of the DES, the iterative nature of the Feistel construction makes implementing the cryptosystem in hardware easier (particularly on the hardware available at the time of DES's design).