{"655192":{"#nid":"655192","#data":{"type":"event","title":"School of Cybersecurity \u0026 Privacy Recruiting Seminar","body":[{"value":"\u003Cp\u003EThe School of Cybersecurity \u0026amp; Privacy is welcoming\u0026nbsp;\u003Cstrong\u003EBenedikt B\u0026uuml;nz\u003C\/strong\u003E for a seminar titled, \u003Cem\u003EImproving the Privacy, Scalability, and Ecological Impact of Blockchains\u003C\/em\u003E.\u0026nbsp;B\u0026uuml;nz\u0026nbsp;is a Ph.D. student at Stanford University in the applied cryptography lab with Dan Boneh. His work focuses on the science of blockchains.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe faculty recruiting seminar is scheduled for Feb. 8 at 12 p.m. in the 9th floor atrium of the Coda Building.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E: Blockchains are an exciting area of research that touches on many areas of Computer Science and beyond. This technology has the potential to enable a fast, cheap, and private financial system based on distributed consensus and cryptography, instead of trusted parties.\u0026nbsp;Despite this potential, the reality still shows severe limitations of blockchains: (i) transactions can cost hundreds of dollars and take minutes to confirm, (ii) some blockchains offer little privacy, and (iii) proof-of-work consensus consumes too much energy.\u0026nbsp;In this talk, I will discuss powerful techniques that follow a prover paradigm and can mitigate these limitations.\u0026nbsp;The first technique, called\u0026nbsp;Bulletproofs, is a general-purpose zero-knowledge proof system that is specifically designed to enable confidential blockchain transactions. Bulletproofs requires minimal trust assumptions and gives the shortest zero-knowledge proofs without a trusted setup. The system is widely deployed and powers tens of thousands of private blockchain transactions per day. The second technique, called inner pairing products, is a way to aggregate many zero-knowledge proofs into a single short proof. This can significantly reduce on-chain data, leading to a significant increase in transactions per second that the chain can process. The third technique is a new concept called a verifiable delay function (VDF) that is vital for permission-less and eco-friendly consensus. VDFs are already deployed in Filecoin and Chia, and are planned for Ethereum 2.0, the upcoming upgrade to Ethereum.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"The School of Cybersecurity \u0026 Privacy is welcoming Stanford University Ph.D. student Benedikt B\u00fcnz for a seminar about improving the privacy, scalability, and ecological impact of blockchains. "}],"uid":"32045","created_gmt":"2022-02-04 15:19:03","changed_gmt":"2022-02-04 15:32:17","author":"Ben Snedeker","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2022-02-08T12:08:00-05:00","event_time_end":"2022-02-08T13:00:00-05:00","event_time_end_last":"2022-02-08T13:00:00-05:00","gmt_time_start":"2022-02-08 17:08:00","gmt_time_end":"2022-02-08 18:00:00","gmt_time_end_last":"2022-02-08 18:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"https:\/\/scp.cc.gatech.edu\/calendar_event\/scp-recruiting-seminar-benedikt-bunz-improving-the-privacy-scalability-and-ecological-impact-of-blockchains\/","title":"School of Cybersecurity \u0026 Privacy Recruiting Seminar"}],"groups":[{"id":"47223","name":"College of Computing"},{"id":"50875","name":"School of Computer Science"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EKenya Payton, Assistant to the School Chair\u003Cbr \/\u003E\r\n\u003Ca href=\u0022mailto:mailto:kpayton6@gatech.edu?subject=SCP%20Recruiting%20Seminar\u0022\u003Emailto:kpayton6@gatech.edu\u003C\/a\u003E\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}