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| -rw-r--r-- | template/news/2022-05.html.j2 | 40 | ||||
| -rw-r--r-- | template/news/2022-06.html.j2 | 54 | ||||
| -rw-r--r-- | template/news/2022-07.html.j2 | 39 | ||||
| -rw-r--r-- | template/news/2022-08.html.j2 | 13 | ||||
| -rw-r--r-- | template/news/2022-09.html.j2 | 25 | ||||
| -rw-r--r-- | template/news/index.html.j2 | 5 |
6 files changed, 172 insertions, 4 deletions
diff --git a/template/news/2022-05.html.j2 b/template/news/2022-05.html.j2 new file mode 100644 index 00000000..b309807d --- /dev/null +++ b/template/news/2022-05.html.j2 @@ -0,0 +1,40 @@ +{% extends "common/news.j2" %} {% block body_content %} + +<h1>2022-5: "Who comes after us? The correct mindset for designing a Central Bank Digital Currency" published by SUREF</h1> + +<h2>Background</h2> +<p> +The title of the paper refers to the former DIRNSA, who claimed that +"nobody comes after us" just before the NSA lost control of its data +on Afghanistan collaborators to the Taliban. The paper urges for this +cautionary tale to be considered when central banks are creating +digital currencies. +</p> + +<h2>Abstract</h2> +<p> +In December 2021 the European Central Bank (ECB) published a report on +"Central Bank Digital Currency: functional scope, pricing and controls" in its +Occasional Paper Series [BPT21], detailing various challenges for the Digital +Euro. While the authors peripherally acknowledge the existence of token-based +payment systems, the notion that a Digital Euro will somehow require citizens +to have some kind of central bank account is pervasive in the paper. We argue +that an account-based design cannot meet the ECB’s stated design goals and +that the ECB needs to fundamentally change its mindset when thinking about its +role in the context of the Digital Euro if it wants the project to +succeed. Along the same lines, the French National Council for Digitalization +published a report on "Notes and Tokens, The New Competition of Currencies" +[DGTV21]. Here, the authors make related incorrect claims about inevitable +properties of Central Bank Digital Currencies (CBDCs), going as far as stating +that a CBDC is not possible without an eID system. Our paper sets the record +straight. +</p> +<h4>Download links</h4> +<ul> + <li><a href="https://www.suerf.org/policynotes/46097/who-comes-after-us-the-correct-mindset-for-designing-a-central-bank-digital-currency">HTML +(English)</a></li> + <li><a +href="https://www.suerf.org/docx/f_cd24c3cabd88307c9c9299817143ba5d_46097_suerf.pdf">PDF (English)</a></li> +</ul> + +{% endblock body_content %} diff --git a/template/news/2022-06.html.j2 b/template/news/2022-06.html.j2 new file mode 100644 index 00000000..9491a2f2 --- /dev/null +++ b/template/news/2022-06.html.j2 @@ -0,0 +1,54 @@ +{% extends "common/news.j2" %} {% block body_content %} + +<h1>2022-6: "GNU Taler Scalability: Measuring and Improving the Performance of GNU Taler on Grid’5000"</h1> + +<h2>Background</h2> +<p> +Anonymity loves company. Hence, to provide the best +possible anonymity to GNU Taler users, the scalability of +individual installations of a Taler payment service matters. +While our design scales nicely on paper, +<a href="https://www.ngi.eu/ngi-projects/fed4fire/">NGI Fed4Fire+</a> +enabled us to evaluate the transaction rates that could be achieved +with the actual implementation. Experiments were conducted by Marco Boss for +his Bachelor's thesis at the <a href="https://www.bfh.ch/">Bern +University of Applied Sciences</a> to assess bottlenecks and suggest +avenues for further improvement. +</p> +<h2>Introduction video</h2> +<p> + <video id="video" poster="/images/logo-2021.svg" autobuffer="" height="360" width="640" controls="controls"> + <source src="/videos/mboss2022video.mp4" type="video/mp4" \> + </video> +</p> +<h2>Abstract</h2> +<p> +This thesis is on the GNU Taler scalability experiments conducted +on <a href="https://www.grid5000.fr/">Grid’5000</a> in the first +half of 2022, which was preceded by preparations carried out in the second half of 2021 +supported by the Next Generation Internet initiative’s +<a href="https://www.ngi.eu/ngi-projects/fed4fire/">NGI Fed4Fire+</a> program. +<br> +The primary goal of this study was to evaluate the scalability of GNU Taler in a real-world +scenario. That is, moving away from the loopback system to a distributed network and identifying +improvement opportunities therein to analyze and improve performance. While the +basic framework was already known from the previous study, this work focuses on extending +the framework and making further improvements to GNU Taler. This includes, among +other things, the horizontal distribution of the PostgreSQL database. +<br> +We identified and fixed several bottlenecks in the GNU Taler software. We parallelized the +execution of the cryptographic frontend, leaving the PostgreSQL database as the natural bottleneck. +Here, we optimized queries and modified the schema to enable table partitioning. +The scalability demonstrated in our experiments shows that Taler is very capable of processing +enough transactions per second to be considered an acceptable payment system. +Throughout this work, we were able to increase the performance of Taler by a factor of 95, +from about 300 to 28.5k transactions per second, showing that Central Bank Digital Currencies +based on Taler would require only a few exchanges per continent. +</p> +<h2>Download links</h2> +<ul> + <li><a href="/presentations/boss2022poster.pdf">Poster PDF (English)</a></li> + <li><a href="/papers/boss2022thesis.pdf">Thesis PDF (English)</a></li> +</ul> + +{% endblock body_content %} diff --git a/template/news/2022-07.html.j2 b/template/news/2022-07.html.j2 new file mode 100644 index 00000000..823a2c35 --- /dev/null +++ b/template/news/2022-07.html.j2 @@ -0,0 +1,39 @@ +{% extends "common/news.j2" %} {% block body_content %} + +<h1>2022-6: "A digital euro and the future of cash"</h1> + +<h2>Background</h2> +<p> +The <a href="https://www.oenb.at/">Central Bank of Austria</a> has +published a report in the context of a workshop +<a href="https://www.oenb.at/Termine/2022/2022-06-21-workshop-euroat20.html">celebrating 20 years of +Euro-denominated cash</a>. The report discusses the future of cash, +including account- and blockchain-based designs, as well as +<a href="https://taler.net/">GNU Taler</a>. +</p> +<h2>Abstract</h2> +<p> +What is the discussion about a digital euro – and, more generally, digital +central bank currencies – all about? We are focusing here on the future of +cash. For strategic reasons, central banks are seeking to provide a credible +and viable public anchor for digital money given that the future might be +shaped more strongly by new private issuers of money. The technological +structures and business model-driven incentives of the new players, which are +associated with the internet economy and thrive on network effects, might lead +to a concentration of significant market power in payments. Ultimately, this +might even result in a fragmented monetary system and jeopardize universal +access to public money. From a central bank’s perspective, the crucial +question is therefore not so much about replacing cash with new payment +technologies but about finding ways to ensure that the monetary system will +continue to work in the public interest in a digital future. Cash will, and +should, play a role also in a future monetary system. By creating a digital +euro, central banks in the euro area aim to adapt cash in such a way that it +meets the needs of the digital age. +</p> +<h2>Download links</h2> +<ul> + <li><a href="https://www.oenb.at/dam/jcr:0e3c00d6-2e0a-4089-b23c-5604e60ebde5/07_Mop_Q1-2_22_A-digital-euro-and-the-future-of-cash.pdf">Original publication (Oesterreichische Nationalbank)</a></li> + <li><a href="/papers/digital-euro-and-the-future-of-cash.pdf">Local copy (mirror)</a></li> +</ul> + +{% endblock body_content %} diff --git a/template/news/2022-08.html.j2 b/template/news/2022-08.html.j2 new file mode 100644 index 00000000..7eff7bd1 --- /dev/null +++ b/template/news/2022-08.html.j2 @@ -0,0 +1,13 @@ +{% extends "common/news.j2" %} +{% block body_content %} +<h1>2022-06: Vortrag zu "Datenschutzfreundliches digitales Bezahlen" beim Netzpolitischen Abend in Zürich</h1> +<p> + <video id="video" poster="https://taler.net/images/logo-2020.jpg" autobuffer="" height="360" width="640" controls="controls"> + <source src="https://taler.net/videos/netpol2022.webm" type="video/webm" /> + <source src="https://taler.net/videos/netpol2022.mp4" type="video/mp4" /> + </video> +</p> +<p> + <a rel="license" href="https://creativecommons.org/licenses/by-nd/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="https://taler.net/images/ccby.png"></a><br>"<span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">Taler</span>" by <span xmlns:cc="http://creativecommons.org/ns#" property="cc:attributionName">Christian Grothoff, produced by c3voc.de</span> is licensed under a <a rel="license" href="https://creativecommons.org/licenses/by-nd/3.0/deed.en_US">Creative Commons Attribution NoDerivatives 3.0 Unported License</a>. +</p> +{% endblock body_content %} diff --git a/template/news/2022-09.html.j2 b/template/news/2022-09.html.j2 new file mode 100644 index 00000000..27148b0a --- /dev/null +++ b/template/news/2022-09.html.j2 @@ -0,0 +1,25 @@ +{% extends "common/news.j2" %} {% block body_content %} + +<h1>2022-9: "Zero-Knowledge Age Restriction for GNU Taler"</h1> + +<h2>Abstract</h2> +<p> + We propose a design for a privacy-friendly method of age restriction in + e-commerce that is aligned with the principle of subsidiarity. The design + is presented as an extension of a privacy-friendly payment protocol with a + zero-knowledge scheme that cryprographically augments coins for this purpose. + Our scheme enables buyers to prove to be of sufficient age for a particular + transaction without disclosing it. Our modification preserves the privacy and + security properties of the payment system such as the anonymity of minors as + buyers as well as unlinkability of transactions. We show how our scheme can be + instantiated with ECDSA as well with a variant of EdDSA, respectively, and how + it can be integrated with the GNU Taler payment system. We provide formal + proofs and implementation of our proposal. Key performance measurements for + various CPU architectures and implementations are presented. +</p> +<h2>Download links</h2> +<ul> + <li><a href="/papers/esorics2022-age-restriction.pdf">PDF (English)</a></li> +</ul> + +{% endblock body_content %} diff --git a/template/news/index.html.j2 b/template/news/index.html.j2 index 5c5cf284..f98468c5 100644 --- a/template/news/index.html.j2 +++ b/template/news/index.html.j2 @@ -8,10 +8,7 @@ <h1>{{ _("News") }}<a name="news"></a></h1> <section> <p> - {% trans %} - News posts about changes related to - GNUnet such as releases and events - {% endtrans %} + {% trans %}News posts about changes related to GNU Taler such as releases and events{% endtrans %} – <a href="{{ url_localized('rss.xml') }}">{{ _("subscribe to our RSS feed") }}</a> </p> |