Hola,
¿eres nuevo aquí?

Registrate y conecta tu empresa con financiación pública, partners y proyectos.

TOCNeT

Financiado

Teaching Old Crypto New Tricks

The bulk of the research in modern cryptography goes into constructing new schemes for which stronger security guarantees can be proven. However, often it is not clear if simple existing schemes already provide the required securi... ver más

31/03/2021

IST AUSTRIA

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2021-03-31

Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:

ERC-CoG-2015: ERC Consolidator Grant

I+D

Cerrada hace 9 años

0% 100% 100%

2 Participantes

IST AUSTRIA

1.88M€ | Lider

GONVARRI GALICIA

464.04K€ | Participante

Proyectos interesantes

MTM2016-77213-R CRIPTOGRAFIA AVANZADA PARA AFRONTAR NUEVOS RETOS DE LA SOCIE... 84K€ Cerrado

SoBaSyC Solid Basis for Symmetric Cryptography 2M€ Cerrado

TEC2009-13964-C04-02 IDENTIFICACION Y AUTENTICACION SEGURAS 8K€ Cerrado

JCI-2010-08025 Practically Secure Cryptographic Protocols and their Applica... 101K€ Cerrado

TIN2014-55325-C2-1-R PROTOCOLOS CRIPTOGRAFICOS Y MODELOS MATEMATICOS PARA LA CIBE... 72K€ Cerrado

BRIDGE Connecting Symmetric and Asymmetric Cryptography for Leakag... 2M€ Cerrado

Últimas noticias

01-12-2024: REDES En las últimas 48 horas el Organismo REDES ha otorgado 1337 concesiones

01-12-2024: IDAE En las últimas 48 horas el Organismo IDAE ha otorgado 4 concesiones

01-12-2024: AEI En las últimas 48 horas el Organismo AEI ha otorgado 23 concesiones

Duración del proyecto: 60 meses Fecha Inicio: 2016-03-10
Fecha Fin: 2021-03-31

Líder del proyecto

INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA

TRL 4-5

Presupuesto del proyecto 2M€

Descripción del proyecto The bulk of the research in modern cryptography goes into constructing new schemes for which stronger security guarantees can be proven. However, often it is not clear if simple existing schemes already provide the required security, and we just don’t know how to prove it. As these new schemes are usually less efficient, they are not being applied resulting in a large discrepancy between the security that applied schemes are supposed to provide and what is actually proven. This project aims at closing this gap in different contexts: we will revisit simple schemes (including widely deployed ones) using new tools, developed by us and others in the last years, towards proving much stronger security properties than what is currently known. Three research directions in which we have already made substantial progress and which we will further investigate are: Adaptive Security: Often we can prove a scheme secure against selective adversaries, while in practice stronger adaptive security is required. Until recently this was the case for constrained PRFs, the popular LKH multicast encryption and all known proxy re-encryption schemes. Last year we introduced the nested hybrids proof technique, which allowed us to prove adaptive security of these schemes. We will further develop and apply this technique. Symmetric Cryptography: Although symmetric schemes are the work horses of crypto, for most of them we only have non-tight security proofs which leave a huge gap to the best known attacks. We recently proved tight security bounds for HMAC (used for authentication in SSL/TLS, SSH and IPsec) and the Sponge family used in the SHA3 standard. Pseudoentropy: Computational notions of entropy have found many applications in the last few years. The tools available to manipulate pseudoentropy yield poor quantitative bounds, resulting in impractical schemes. We will continue our research towards establishing the exact necessary security degradation for manipulating pseudoentropy.

Conecta tu I+D

Entra hoy

Financiación

Empresas

CTIs/Universidades

Proyectos

Investigadores