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Recovering the CTR_DRBG state in 256 traces

Lauren De Meyer
<span title="2019-11-18">2019</span> <i title="IACR Transactions on Cryptographic Hardware and Embedded Systems"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/yz7ssmvstjhsxiwixprnmyijnq" style="color: black;">Transactions on Cryptographic Hardware and Embedded Systems</a> </i> &nbsp;
In this work, we exhibit an attack that requires only 256 traces, which is well within the NIST limits.  ...  The NIST CTR_DRBG specification prescribes a maximum size on each random number request, limiting the number of encryptions in CTR mode with the same key to 4 096.  ...  The author is funded by a PhD fellowship of the Fund for Scientific Research -Flanders (FWO).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.13154/tches.v2020.i1.37-65">doi:10.13154/tches.v2020.i1.37-65</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/journals/tches/Meyer20.html">dblp:journals/tches/Meyer20</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/x6nege4onneohprlssxne2nkay">fatcat:x6nege4onneohprlssxne2nkay</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200109211744/https://tches.iacr.org/index.php/TCHES/article/download/8392/7776" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f2/cd/f2cd3fe9a960ca338b7a52f68fdb76a4ecd093a7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.13154/tches.v2020.i1.37-65"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

A Finer-Grain Analysis of the Leakage (Non) Resilience of OCB

Francesco Berti, Shivam Bhasin, Jakub Breier, Xiaolu Hou, Romain Poussier, François-Xavier Standaert, Balasz Udvarhelyi
<span title="2021-11-19">2021</span> <i title="Universitatsbibliothek der Ruhr-Universitat Bochum"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/yz7ssmvstjhsxiwixprnmyijnq" style="color: black;">Transactions on Cryptographic Hardware and Embedded Systems</a> </i> &nbsp;
We last describe how recovering the whitening values can lead to strong attacks against the confidentiality and integrity of OCB3.  ...  We start from trivial key recoveries in settings where the mode can be attacked with standard Differential Power Analysis (DPA) against some block cipher calls in its execution (namely, initialization,  ...  This work has been funded in parts by the ERC project 724725 (SWORD).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.46586/tches.v2022.i1.461-481">doi:10.46586/tches.v2022.i1.461-481</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/maljet4tg5f5lb2nrs32rfmu54">fatcat:maljet4tg5f5lb2nrs32rfmu54</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220205082943/https://tches.iacr.org/index.php/TCHES/article/download/9304/8870" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/fc/ad/fcad7aab670e7b88f94797b99f132a27205d2c40.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.46586/tches.v2022.i1.461-481"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

A cryptographic concept for the secure storage and transmission of medical images on iOS devices

Michael Niszl, Rudolf Freund
<span title="2016-03-01">2016</span>
Smartphones have not only become indispensable in people's lives - they are also progressing into valuable assets in the medical sector.  ...  Die Referenzapplikation ist Teil einer Hautanalyse-Software, welche in klinischen Studien bei Radiodermatitis-Patienten eingesetzt wird.  ...  Acknowledgements I would like to thank everyone who was involved in the development process of my thesis.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.34726/hss.2016.26957">doi:10.34726/hss.2016.26957</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/z3j5lbp37rfy5glemtwavq5zy4">fatcat:z3j5lbp37rfy5glemtwavq5zy4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220129203436/https://repositum.tuwien.at/bitstream/20.500.12708/6738/2/Niszl%20Michael%20-%202016%20-%20A%20cryptographic%20concept%20for%20the%20secure%20storage%20and...pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/59/e1/59e18788102127fcaa97c01b09f43c22e1436c73.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.34726/hss.2016.26957"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>