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Description of a New Variable-Length Key, 64-bit Block Cipher (Blowfish)

Bruce Schneier
- pp 191-204
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TLDR
Blowfish, a new secret-key block cipher, is proposed, a Feistel network, iterating a simple encryption function 16 times, which is very efficient on large microprocessors.
Abstract
Blowfish, a new secret-key block cipher, is proposed. It is a Feistel network, iterating a simple encryption function 16 times. The block size is 64 bits, and the key can be any length up to 448 bits. Although there is a complex initialization phase required before any encryption can take place, the actual encryption of data is very efficient on large microprocessors.

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Citations
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Book

Handbook of Applied Cryptography

TL;DR: A valuable reference for the novice as well as for the expert who needs a wider scope of coverage within the area of cryptography, this book provides easy and rapid access of information and includes more than 200 algorithms and protocols.
Patent

Systems and Methods for Secure Transaction Management and Electronic Rights Protection

TL;DR: In this article, the authors proposed a secure content distribution method for a configurable general-purpose electronic commercial transaction/distribution control system, which includes a process for encapsulating digital information in one or more digital containers, a process of encrypting at least a portion of digital information, a protocol for associating at least partially secure control information for managing interactions with encrypted digital information and/or digital container, and a process that delivering one or multiple digital containers to a digital information user.
Book ChapterDOI

Timing Attacks on Implementations of Diffie-Hellman, RSA, DSS, and Other Systems

TL;DR: By carefully measuring the amount of time required to perform private key operalions, attackers may be able to find fixed Diffie-Hellman exponents, factor RSA keys, and break other cryptosystems.
Book ChapterDOI

Differential Fault Analysis of Secret Key Cryptosystems

TL;DR: This work states that this attack is applicable only to public key cryptosystems such as RSA, and not to secret key algorithms such as the Data Encryption Standard (DES).
References
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Book ChapterDOI

Linear cryptanalysis method for DES cipher

TL;DR: A new method is introduced for cryptanalysis of DES cipher, which is essentially a known-plaintext attack, that is applicable to an only-ciphertext attack in certain situations.
Journal Article

Data encryption standard

TL;DR: Presentation de la norme americaine de codage des donnees informatisees (DES: Data Encryption Standard) permet de proteger lesDonnees selon des criteres qui sont developpes dans ce texte.
Book

Differential Cryptanalysis of the Data Encryption Standard

TL;DR: This book introduces a new cryptographic method, called differential cryptanalysis, which can be applied to analyze cryptosystems, and describes the cryptanalysis of DES, deals with the influence of its building blocks on security, and analyzes modified variants.
Journal ArticleDOI

Cryptography and Computer Privacy

Horst Feistel
- 01 May 1973 - 
Book ChapterDOI

Markov ciphers and differential cryptanalysis

TL;DR: It is shown that PES (8) and PES(16) are immune to differential cryptanalysis after sufficiently many rounds, and a new design principle for Markov ciphers, viz., that their transition probability matrices should not be symmetric is suggested.