Here's a succinct article by CMU's Cylab about my work on atomic Swaps that I will present (remotely) at IEEE SP'22 tomorrow!
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Sri AravindaKrishnan
@aravind16coiner
Post Doc at NTT Research , CMU . PhD from FAU Germany . Interested in: Applied cryptography, Fairness, Blockchain, Cryptocurrency
aravinda-thyagarajan.comJoined May 2010
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Happy to announce our paper eprint.iacr.org/2022/1421 will appear at PKC 23. Joint effort with Shravan, Giulio, , , and .
New constructions of time lock puzzles with new applications to Byzantine consensus.
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Here is a well summarized blog post about the work.
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1/ We have posted three articles about the new proposal
“BLS oracle signature for DLC”.
The first article is an overview of the proposal.
medium.com/crypto-garage/
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Happy to announce that the paper eprint.iacr.org/2022/499 will appear at NDSS 2023. My first paper at NDSS after many attempts :) Amazing cross continental collaboration with Dimitrios and Giulio.
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Just have posted the article about “BLS oracle signature for DLC”🔥🔥🔥🔥🔥🔥
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1/ We have posted three articles about the new proposal
“BLS oracle signature for DLC”.
The first article is an overview of the proposal.
medium.com/crypto-garage/
Show this thread
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Quote Tweet
1/ We have posted three articles about the new proposal
“BLS oracle signature for DLC”.
The first article is an overview of the proposal.
medium.com/crypto-garage/
Show this thread
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1/ We have posted three articles about the new proposal
“BLS oracle signature for DLC”.
The first article is an overview of the proposal.
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It will be warm and not that cold in south bay they said. But take winter cloths anyway they never said.
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Cool thing is we can use our solution as a coin mixing service. The same security gain and wider compatibility holds just as in the case of atomic swaps. Do check out our results! Any and all feedback welcome.
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In this work we show how to swap coins in an unlinkable manner using an intermediary. We give strong security guarantees along with new efficient constructions to capture wider class of currencies than currently known.
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#ePrint Sweep-UC: Swapping Coins Privately: L Hanzlik, J Loss, SA Thyagarajan, B Wagner ia.cr/2022/1605
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giving a fantastic presentation of Sleepy Channels , a new protocol allowing #LightningNetwork nodes to go offline without resorting to watchtowers. A collaboration
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Excited to be at my first in-person
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Here's the video of my talk at the CrySp Speaker series on Privacy at the University of Waterloo. crysp.uwaterloo.ca/speakers/
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I will talk about Universal Atomic Swaps for cryptocurrencies at CESC cesc.io tomorrow (session 1). The full paper can be found here eprint.iacr.org/2021/1612.
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Happy to announce a new work on yet another new application of time lock puzzles for stronger security in Byzantine consensus. We give new constructions of TLPs where we can batch solve unbounded number of puzzles (with iO). Shravan and Giulio.
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#ePrint Transparent Batchable Time-lock Puzzles and Applications to Byzantine Consensus: S Srinivasan, J Loss, G Malavolta, K Nayak, C Papamanthou, SA Thyagarajan ia.cr/2022/1421
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This is on a new mattress I ordered :-D
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Culture shock. The rent includes parking spot for the car and a guest's car, but not water for the apartment.
I am joining as a post doc at NTT Research starting this October. Very excited :)
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This is an astonishing story. Ashamed that I didn’t know the origin of the name Sabina Park till now. This story needs to be told each time there is a cricket match at this venue.
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Beautiful Pittsburgh:-)
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Very impressed with the work on "Cryptographic Oracle-Based Conditional Payments" (eprint.iacr.org/2022/499.pdf). It provides a novel perspective on DLCs and certain types of adaptor sigs. In particular, running a DLC oracle becomes much easier.
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Authors: Giulio Malavolta, Dimitrios Vasilopoulos. See also the announcement post on the dlc-dev list: mailmanlists.org/pipermail/dlc-
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For more details on our meta contract, game-theoretic analysis, and a bitcoin instantiation, check out the paper: eprint.iacr.org/2022/1063
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However in Rapidash, we turn the tables around. The funds are locked in currency B first, followed by the locking of coins in currency A. A cheap acknowledgement is given by the user owning coins in currency B, and only then the lock in currency B becomes eligible for a release
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If there is a delay, the funds are refunded. This approach is taken to ensure the user owning currency B is guaranteed that a lock has been set in currency A before he sets a lock in currency B allowing the other user to release the lock and get the coins in currency B.
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Current approach to swap coins between currency A and currency B is that users first lock funds in currency A, and then setup an atomic lock in currency B. The idea would be to release the lock in currency B and in turn trigger the release of lock in currency A.
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Amazingly, we take an approach contrary to most state of the art solutions. And this seems to enable the strong security and game theoretic guarantees.
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Our atomic swap protocol can handle arbitrary user miner collusions, while requiring minimal script support that it's compatible even with Bitcoin.
We minimise collaterals and the number of on-chain transactions.
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Ponyta evolves into Rapidash!!
A fair exchange and atomic swap protocol in strong game theoretic settings. With amazing co-authors Hao Chung, ,
eprint.iacr.org/2022/1063
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the general chairs have fixed the issue. sorry the earlier version wasn't the intended. the text was copied from somewhere else
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At Crypto 2022. The last conference I went to in person was crypto 2019.
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Happy to have this work accepted at Esorics 2022!! We had the first uni-directional payment channel for Monero's transaction scheme. A more powerful generalisation of this that captures bi-directional channels is our Sleepy channels that will appear at CCS this year.
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PayMo: Payment channels for Monero!
Monero users can now make fast off chain payments without requiring any fork on the Monero chain! Check out the paper
eprint.iacr.org/2020/1441 Co-authored by Giulio Malavolta, Fritz Schmidt and Dominique Schröder. @MoneroTalk @monero
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I am looking for motivated Ph.D. students. If you are interested, please checkout my webpage cs.cmu.edu/~psoni/ or drop me a line at psoni@andrew.cmu.edu. Salt Lake City is beautiful to live/work -- buzzing city life, easy access to nature & lots of skiing! (2/n)
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