Finding Hash Collisions - Schäge, Sven
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Hash functions play an important role in informationtechnology. They are incorporated in many securityprotocols and security-critical applications andensure essential security properties for the overallsystems. To verify their current status of security, hashfunctions are regularly exposed to new attacks fromthe scientific community. Almost all of these attacksare executed on standard PCs. However, the relevanceof such attacks is limited: real attackers are notconfined to the use of standard PCs. Instead theycould develop specialized hardware that executesattacks much faster or cost-efficient.…mehr

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Produktbeschreibung
Hash functions play an important role in informationtechnology. They are incorporated in many securityprotocols and security-critical applications andensure essential security properties for the overallsystems. To verify their current status of security, hashfunctions are regularly exposed to new attacks fromthe scientific community. Almost all of these attacksare executed on standard PCs. However, the relevanceof such attacks is limited: real attackers are notconfined to the use of standard PCs. Instead theycould develop specialized hardware that executesattacks much faster or cost-efficient. In this book we examine which alternative hardwaretechnologies are suited for developing specializedarchitectures for the execution of attacks on hashfunctions. As a proof-of-concept, we develop a verycost-efficient microprocessor with a specializedinstruction set and corresponding assembler software.Based on this, we implement a full hardware unit tosearch for collisions in hash functions.We show thatexecuting attacks on our architecture is, given afixed amount of money, multiple times faster than onstandard PCs.
Autorenporträt
Schäge Sven§Dipl.-Ing. Sven Schäge has received his diploma in IT-Security atRuhr-University Bochum, Germany. Currently, he is working as ascientific researcher at the Horst Görtz Institute in Bochum, oneof the largest research institutes for IT-Security in Europe. Hisresearch interests are cryptographic protocols and anonymouscommunication.