❤️ 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.
Additionally, investors are often instructed to deposit monies into personal bank accounts of individuals who claim to represent a legitimate entity, and/or into an unrelated corporate account. To lend credence and to lure unsuspecting victims, perpetrators usually claim that their entity and/or the investment schemes are approved by financial authorities. He adds: "Telegram has become my primary news source." The S&P 500 fell 1.3% to 4,204.36, and the Dow Jones Industrial Average was down 0.7% to 32,943.33. The Dow posted a fifth straight weekly loss — its longest losing streak since 2019. The Nasdaq Composite tumbled 2.2% to 12,843.81. Though all three indexes opened in the green, stocks took a turn after a new report showed U.S. consumer sentiment deteriorated more than expected in early March as consumers' inflation expectations soared to the highest since 1981. "Someone posing as a Ukrainian citizen just joins the chat and starts spreading misinformation, or gathers data, like the location of shelters," Tsekhanovska said, noting how false messages have urged Ukrainians to turn off their phones at a specific time of night, citing cybersafety. "There is a significant risk of insider threat or hacking of Telegram systems that could expose all of these chats to the Russian government," said Eva Galperin with the Electronic Frontier Foundation, which has called for Telegram to improve its privacy practices.
from sa
