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Cryptanalysis of DES Implemented on Computers with Cache

TLDR
The results of applying an attack against the Data Encryption Standard (DES) implemented in some applications, using side-channel information based on CPU delay as proposed in (11), found that the cipher can be broken with 2 known plaintexts and 2 24 calculations at a success rate > 90%, using a personal computer with 600-MHz Pentium III.
Abstract
This paper presents the results of applying an attack against the Data Encryption Standard (DES) implemented in some applications, using side-channel information based on CPU delay as proposed in (11). This cryptanalysis technique uses side-channel information on encryption processing to select and collect effective plaintexts for cryptanalysis, and infers the information on the expanded key from the collected plaintexts. On applying this attack, we found that the cipher can be broken with 2 23 known plaintexts and 2 24 calculations at a success rate > 90%, using a personal computer with 600-MHz Pentium III. We discuss the feasibility of cache attack on ciphers that need many S-box look-ups, through reviewing the results of our experimental attacks on the block ciphers excluding DES, such as AES.

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[서평]「Applied Cryptography」

염흥렬
TL;DR: The objective of this paper is to give a comprehensive introduction to applied cryptography with an engineer or computer scientist in mind on the knowledge needed to create practical systems which supports integrity, confidentiality, or authenticity.
Proceedings ArticleDOI

Spectre Attacks: Exploiting Speculative Execution

TL;DR: Spectre as mentioned in this paper is a side channel attack that can leak the victim's confidential information via side channel to the adversary. And it can read arbitrary memory from a victim's process.
Posted Content

Cache attacks and Countermeasures: the Case of AES.

TL;DR: In this article, the authors describe side-channel attacks based on inter-process leakage through the state of the CPU's memory cache, which can be used for cryptanalysis of cryptographic primitives that employ data-dependent table lookups.
Book ChapterDOI

Cache attacks and countermeasures: the case of AES

TL;DR: In this article, the authors describe side-channel attacks based on inter-process leakage through the state of the CPU's memory cache, which can be used for cryptanalysis of cryptographic primitives that employ data-dependent table lookups.
Proceedings ArticleDOI

Controlled-Channel Attacks: Deterministic Side Channels for Untrusted Operating Systems

TL;DR: In this article, the authors introduce controlled channel attacks, a new type of sidechannel attack that allows an untrusted operating system to extract large amounts of sensitive information from protected applications on systems like Overshadow, Ink Tag or Haven.
References
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Book ChapterDOI

Differential Power Analysis

TL;DR: In this paper, the authors examine specific methods for analyzing power consumption measurements to find secret keys from tamper resistant devices. And they also discuss approaches for building cryptosystems that can operate securely in existing hardware that leaks information.

[서평]「Applied Cryptography」

염흥렬
TL;DR: The objective of this paper is to give a comprehensive introduction to applied cryptography with an engineer or computer scientist in mind on the knowledge needed to create practical systems which supports integrity, confidentiality, or authenticity.
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).
Book

Advances in Cryptology - CRYPTO '97

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