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Sponges Resist Leakage: The Case of Authenticated Encryption
AEAD Leakage Resilience Side Channels
2019/9/17
In this work we advance the study of leakage-resilient Authenticated Encryption with Associated Data (AEAD) and lay the theoretical groundwork for building such schemes from sponges. Building on the w...
Quantum Indistinguishability of Random Sponges
Symmetric cryptography keyed sponges indistinguishability
2019/1/26
In this work we show that the sponge construction can be used to construct quantum-secure pseudorandom functions. As our main result we prove that random sponges are quantum indistinguishable from ran...
Key Prediction Security of Keyed Sponges
outer-keyed sponge full-keyed sponge key prediction
2018/5/22
The keyed sponge is a well-accepted method for message authentication. It processes data at a certain rate by sequential evaluation of an underlying permutation. If the key size kk is smaller than the...
Collapsing sponges: Post-quantum security of the sponge construction
quantum cryptography hash functions
2017/3/31
We investigate the post-quantum security of hash functions based on the sponge construction. A crucial property for hash functions in the post-quantum setting is the collapsing property (a strengtheni...
New Bounds for Keyed Sponges with Extendable Output: Independence between Capacity and Message Length
PRF XOF game playing
2016/3/18
We provide new bounds for the pseudo-random function security
of keyed sponge constructions. For the case c ≤ b/2 (c the capacity
and b the permutation size), our result improves over all previously...
In this document we present an introductory overview of the algorithms
and design components underlying the Keccac cryptographic primitive
and the Keyak encryption scheme for authenticated (session-...
Collision Spectrum, Entropy Loss, T-Sponges, and Cryptanalysis of GLUON-64
random function Collision Probability Spectrum collision tree
2016/1/23
In this paper, we investigate the properties of iterative non-injective functions and the security of primitives where they are used. First, we introduce the Collision Probability Spectrum (CPS) param...
The tight analysis of keyed sponges is our main result and we see this as an important step in validating SHA-3-based authentication before its deployment. Still, our analysis crucially relies on the ...
Complex interactions between marine sponges and their symbiotic microbial communities
Complex interactions marine sponges symbiotic microbial communities
2014/4/4
To investigate the importance of symbiont-derived nutrition to host sponges, we coupled manipulative shading experiments with stable isotope analyses of isolated symbiont and host cell fractions. Expe...
Heterogeneous oxygenation resulting from active and passive flow in two Mediterranean sponges,Dysidea avaraandChondrosia reniformis
Heterogeneous oxygenation resulting active passive flow in two Mediterranean sponges Dysideaavara Chond rosia reniformis
2014/4/17
The oxygen dynamics and pumping behavior inDysidea avaraand Chondrosia reniformis(Porifera,Demospongiae) were investigated using oxygen microelectrodes and heated thermistor flow sensors. Both field a...
Ordovician sponges (Porifera) and other silicifications from Baltica in Neogene and Pleistocene fluvial deposits of the Netherlands and northern Germany
Baltica Eridanos River erratics Ordovician Porifera silicifications
2009/10/21
Fluvial deposits of Miocene to Early Pleistocene age in Germany and the Netherlands were laid down in the delta of the Eridanos River System, but the exact provenance of this material continues to be ...
New Gold and Silver-Gold Catalysts in the Shape of Sponges and Sieves
Catalysis surface chemistry gold silver nanoparticle
2009/7/28
Gold with a nanoporous sponge-like morphology,
generated by leaching of AuAg alloys is presented as
a new unsupported material system for catalytic
applications. The role of residual silver for cat...
Dressing Sponges from Chitosan and Chitosan-Alginan Fibres
chitosan calcium alginate microfibrids freeze-drying dressing sponges
2009/2/18
This paper presents a manufacturing process for biological chitosan and chitosan-alginate dressing sponges as well as their biological and physical-mechanical properties. The aim of the research was t...
The unique skeleton of siliceous sponges (Porifera;Hexactinellida and Demospongiae) that evolved first from the Urmetazoa during the Proterozoic:a review
unique skeleton siliceous sponges Urmetazoa Proterozoic
2010/1/14
Sponges (phylum Porifera) had been considered as an enigmatic phylum, prior to the analysis of their genetic repertoire/tool kit. Already with the isolation of the first adhesion molecule, galectin, i...
Sponges as a source of dissolved inorganic nitrogen: Nitrification mediated by temperate sponges
Sponges source of dissolved inorganic nitrogen Nitrification mediated temperate sponges
2014/4/22
We evaluated rates of carbon and nitrogen ingestion from particulate organic matter and dissolved inorganic nitrogen excretion by six common sponge species from Mediterranean sublittoral rocky bottom ...