Publication

Interpreting Hash Function Security Proofs

2010
Conference Papers

Abstract

We provide a concrete security treatment of several "provably secure" hash functions. Interpreting arguments behind MQ-HASH, FSB, SWIFFTX and VSH we identify similar lines of reasoning. We aim to formulate the main security claims in a language closer to that of attacks. We evaluate designers' claims of provable security and quantify them more precisely, deriving "second order" bounds on bounds. While the authors of FSB, MQ-HASH and SWIFFT(X) prove existence of non-trivial lower bounds on security, we show that the quantification of the bounds limits the practical significance of the proofs.

Official source

https://infoscience.epfl.ch/entities/publication/4c089b8d-6a54-4ece-a774-0f0b8731ac88

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2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/4c089b8d-6a54-4ece-a774-0f0b8731ac88

About this result

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Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.

International security

International security is a term which refers to the measures taken by states and international organizations, such as the United Nations, European Union, and others, to ensure mutual survival and safety. These measures include military action and diplomatic agreements such as treaties and conventions. International and national security are invariably linked. International security is national security or state security in the global arena. By the end of World War II, a new subject of academic study, security studies, focusing on international security emerged.

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Security is protection from, or resilience against, potential harm (or other unwanted coercion) caused by others, by restraining the freedom of others to act. Beneficiaries (technically referents) of security may be of persons and social groups, objects and institutions, ecosystems or any other entity or phenomenon vulnerable to unwanted change. Security mostly refers to protection from hostile forces, but it has a wide range of other senses: for example, as the absence of harm (e.g.

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