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BIBLIOGRAFIA RFC-4270. P. Hoffman, B. Schneier, “Attacks on Cryptographic Hashes in Internet Protocols”, Counterpane Internet Security November 2005. Xiaoyun Wang1, Yiqun Lisa Yin, and Hongbo Yu. “Finding Collisions in the Full Sha-1n”. Shandong University, Jinan 250100, China. Siler Amador Donado, Luz Ángela Quijano Vidal y Edna Marcela Yela Meneses. “Colisiones en el algoritmo de ciframiento sha-1”. Junio de 2.009. Javier Jarauta Sánchez. “Seguridad Informática, Capitulo 20: Estándares de Seguridad”. Universidad Pontificia. Madrid, España Christophe De Canni`ere, Florian Mendel, and Christian Rechberger. “Collisions for 70-step SHA-1:On the Full Cost of Collision Search”. Graz University of Technology. Graz, Austria. Av. Andrés Bello, Torre BFC, Piso 13, Sector Guaicaipuro, Caracas – Venezuela Tlfs. +58 212 5785674 – Fax +58 212 5724932 . http://www.suscerte.gob.ve De Uso Público
ANEXOS A. RFC 4270. Ataques a resúmenes criptográficos en protocolos de Internet Network Working Group P. Hoffman Request for Comments: 4270 VPN Consortium Category: Informational B. Schneier Counterpane Internet Security November 2005 Attacks on Cryptographic Hashes in Internet Protocols Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2005). Abstract Recent announcements of better-than-expected collision attacks in popular hash algorithms have caused some people to question whether common Internet protocols need to be changed, and if so, how. This document summarizes the use of hashes in many protocols, discusses how the collision attacks affect and do not affect the protocols, shows how to thwart known attacks on digital certificates, and discusses future directions for protocol designers. 1. Introduction In summer 2004, a team of researchers showed concrete evidence that the MD5 hash algorithm was susceptible to collision attacks [MD5-attack]. In early 2005, the same team demonstrated a similar attack on a variant of the SHA-1 [RFC3174] hash algorithm, with a prediction that the normally used SHA-1 would also be susceptible with a large amount of work (but at a level below what should be required if SHA-1 worked properly) [SHA-1-attack]. Also in early 2005, researchers showed a specific construction of PKIX certificates Av. Andrés Bello, Torre BFC, Piso 13, Sector Guaicaipuro, Caracas – Venezuela Tlfs. +58 212 5785674 – Fax +58 212 5724932 . http://www.suscerte.gob.ve De Uso Público
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Page 35 and 36: Av. Andrés Bello, Torre BFC, Piso
Page 41 and 42: F. Ataques de Colisiones SHA1 Av. A
Page 43: Av. Andrés Bello, Torre BFC, Piso

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