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1994•IBM Journal of Research and DevelopmentRequires access

The Data Encryption Standard (DES) and its strength against attacks

Don Coppersmith

Open publisher page 617 citations

Abstract

The Data Encryption Standard (DES) was developed by an IBM team around 1974 and adopted as a national standard in 1977. Since that time, many cryptanalysts have attempted to find shortcuts for breaking the system. In this paper, we examine one such attempt, the method of differential cryptanalysis, published by Biham and Shamir. We show some of the safeguards against differential cryptanalysis that were built into the system from the beginning, with the result that more than 1015bytes of chosen plaintext are required for this attack to succeed.

About this research paper

What this paper is about

The Data Encryption Standard (DES) was developed by an IBM team around 1974 and adopted as a national standard in 1977. Since that time, many cryptanalysts have attempted to find shortcuts for breaking the system. In this paper, we examine one such attempt, the method of differential cryptanalysis, published by Biham and Shamir. We show some of the safeguards against differential cryptanalysis that were built into the system from the beginning, with the result that more than 1015bytes of chosen plaintext are required for this attack to succeed.

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OpenAlex reports 617 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The Data Encryption Standard (DES) was developed by an IBM team around 1974 and adopted as a national standard in 1977. Since that time, many cryptanalysts have attempted to find shortcuts for breaking the system. In this paper, we examine one such attempt, the method of differential cryptanalysis, published by Biham and Shamir. We show some of the safeguards against differential cryptanalysis that were built into the system from the beginning, with the result that more than 1015bytes of chosen plaintext are required for this attack to succeed.

Key concepts: Byte, Advanced Encryption Standard, Encryption, Plaintext, Cryptanalysis, Computer science, IBM, IBM PC compatible

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