❤️ انجمن علمی دانشکده ریاضی دانشگاه صنعتی شریف (همبند) برگزار می‌کند:
❤️ مجموعه جلسات «گذر»
💠 عنوان: Non-Interactive Key-Exchange Protocols
🎙 ارائه‌دهنده: الهه صادقی
🔻 توضیحات: In this work, we initiate a study of K-NIKE protocols in the fine-grained setting, in which there is a polynomial gap between the running time of the honest parties and that of the adversary. Our goal is to show the possibility, or impossibility, of basing such protocols on weaker assumptions than those of K-NIKE for K >= 3. We improve the security by further using algebraic structures, while avoiding pairings. In particular, we show that there is a 4-party NIKE in Shoup's generic group model with a quadratic gap between the number of queries by the honest parties vs. that of the adversary.
پیشنیاز های علمی: Basic Knowledge of Group Theory and Cryptography. I will explain the intuition behind every part of the lecture though, so everyone are welcome to join.
❤️ انجمن علمی دانشکده ریاضی دانشگاه صنعتی شریف (همبند) برگزار می‌کند:
❤️ مجموعه جلسات «گذر»
💠 عنوان: Non-Interactive Key-Exchange Protocols
🎙 ارائه‌دهنده: الهه صادقی
🔻 توضیحات: In this work, we initiate a study of K-NIKE protocols in the fine-grained setting, in which there is a polynomial gap between the running time of the honest parties and that of the adversary. Our goal is to show the possibility, or impossibility, of basing such protocols on weaker assumptions than those of K-NIKE for K >= 3. We improve the security by further using algebraic structures, while avoiding pairings. In particular, we show that there is a 4-party NIKE in Shoup's generic group model with a quadratic gap between the number of queries by the honest parties vs. that of the adversary.
پیشنیاز های علمی: Basic Knowledge of Group Theory and Cryptography. I will explain the intuition behind every part of the lecture though, so everyone are welcome to join.
Just days after Russia invaded Ukraine, Durov wrote that Telegram was "increasingly becoming a source of unverified information," and he worried about the app being used to "incite ethnic hatred." "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so. And indeed, volatility has been a hallmark of the market environment so far in 2022, with the S&P 500 still down more than 10% for the year-to-date after first sliding into a correction last month. The CBOE Volatility Index, or VIX, has held at a lofty level of more than 30. The next bit isn’t clear, but Durov reportedly claimed that his resignation, dated March 21st, was an April Fools’ prank. TechCrunch implies that it was a matter of principle, but it’s hard to be clear on the wheres, whos and whys. Similarly, on April 17th, the Moscow Times quoted Durov as saying that he quit the company after being pressured to reveal account details about Ukrainians protesting the then-president Viktor Yanukovych.
from us
