Cryptanalysis of Block Ciphers Based on SHA-1 and MD5

We cryptanalyse some block cipher proposals that are based on dedicated hash functions SHA-1 and MD5. We discuss a related-key attack against SHACAL-1 and present a method for finding ”slid pairs” for it. We also present simple attacks against MDC-MD5 and the Kaliski-Robshaw block cipher.

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Bibliographische Detailangaben
Veröffentlicht in:	Fast Software Encryption 2003, p.36-44
1. Verfasser:	Saarinen, Markku-Juhani O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Computer science control theory systems Cryptography Dedicated hash functions Exact sciences and technology Information, signal and communications theory MD5 MDC Memory and file management (including protection and security) Memory organisation. Data processing SHA-1 SHACAL Signal and communications theory Slide attacks Software Telecommunications and information theory
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Beschreibung
Zusammenfassung:	We cryptanalyse some block cipher proposals that are based on dedicated hash functions SHA-1 and MD5. We discuss a related-key attack against SHACAL-1 and present a method for finding ”slid pairs” for it. We also present simple attacks against MDC-MD5 and the Kaliski-Robshaw block cipher.
ISSN:	0302-9743 1611-3349
DOI:	10.1007/978-3-540-39887-5_4