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UID:www.tcs.tifr.res.in/event/1569
DTSTAMP:20250630T054630Z
SUMMARY:Building advanced cryptography for distributed settings.
DESCRIPTION:Speaker: Anshu Yadav (Institute of Science and Technology Austr
 ia)\n\nAbstract: \nIn today's world\, rapid technological advancement has 
 led to the generation of vast amounts of sensitive data\, often in a distr
 ibuted manner. Ensuring secure and controlled access to this data\, while 
 avoiding single points of failure\, presents natural yet complex challenge
 s in modern cryptography. My research explores how advanced cryptographic 
 primitives can address these challenges.\nIn this talk\, I will begin with
  a brief overview of my research interests\, and then focus on one key the
 me: multi-input attribute-based encryption (k-ABE). This is a generalizati
 on of attribute-based encryption (ABE)\, which allows expressive access co
 ntrol over encrypted data. In ABE\, a message is encrypted under an attrib
 ute x\, and decryption keys correspond to policies f\, allowing decrypti
 on only if f(x) = 1. In the multi-input setting\, data is generated indep
 endently by k parties\, each with input (x_i\, m_i). A decryption key f
 or a k-ary predicate f can recover all messages if and only if f(x₁\
 ,...\,x_k) = 1. I will outline our formalization of k-ABE and highlight co
 nstructions under various assumptions. If time permits\, I will briefly me
 ntion my work on threshold signatures and conclude with future research di
 rections and open problems.\nShort Bio: Anshu Yadav is currently a postdo
 ctoral researcher at IST Austria. She received her PhD from IIT Madras\, g
 uided by Prof. Shweta Agrawal. Her research interests are in the area of t
 heoretical cryptography in building various cryptographic primitives large
 ly from post-quantum lattice-based cryptographic assumptions and some from
  classical assumptions as well. \n
URL:https://www.tcs.tifr.res.in/web/events/1569
DTSTART;TZID=Asia/Kolkata:20250703T160000
DTEND;TZID=Asia/Kolkata:20250703T170000
LOCATION:A-201 (STCS Seminar Room)
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