A “home” sharing environment consists of the data sharing relationships between family members, friends, and acquaintances. We argue that this environment, far from being simple, has sharing and trust relationships as complex as any general-purpose network. Such environments need strong access control and privacy guarantees. We show that avoiding information leakage requires both to be integrat...

This article develops a model of the upstairs market where order size, beliefs, and prices are determined endogenously. We test the model’s predictions using unique data for 5,625 equity trades during the period 1985 to 1992 that are known to be upstairs transactions and are identified as either buyer or seller initiated. We find that price movements prior to the trade date are significantly po...

Signature can be used to verify the integrity of both a message and identity signer, whereas encryption ensure confidentiality message. In past, cryptography researchers have studied proposed numerous certificateless signcryption (CLSC) schemes combine benefits signature encryption. However, these may not robust enough withstand side-channel attacks. Through such attacks, an attacker constantly...

PURPOSE We use semiautomated segmentation of fluorescein angiography (FA) to determine whether anti-vascular endothelial growth factor (VEGF) treatment for diabetic macular edema (DME) differentially affects microaneurysm (MA)-associated leakage, termed focal leakage, versus non-MA-associated leakage, termed diffuse leakage. METHODS We performed a retrospective study of 29 subjects treated wi...

In case of aortic periprosthetic leakage, there are several methods of repair. When valve replacement or refixation is not suitable an alternative repair technique, ‘curtaining’ with a Dacron patch to prevent leakage is presented.  1999 Elsevier Science B.V. All rights reserved.

In this paper, we discuss an insider security which has been one of the biggest issues in the network security. By surveying and analyzing an issue of previous studies, we suggest an effective approach for future research. Approximately 90% of the information leakage incidents are recently being performed by internal workers. It is coming as a more serious problem than outsider attacks. The inf...

This study investigates the market reaction to dividend change announcements at the Istanbul Stock Exchange. A sample of 184 announcements made by 46 companies during the period 2005 to 2008 is analyzed by using the event study methodology. The results suggest that the market reacts positively to dividend increases, negatively to dividend decreases and does not react when dividends are not chan...

Recall from last lecture that we have several ways to model leakage. One model is “only computation leaks” by Micali and Reyzin [11], which assumes a form of secure memory that does not leak as long as no computation is done on the data. Another one is “memory leakage” by Akavia, Goldwasser, and Vaikuntanathan [1], which assumes that everything can leak information. From an orthogonal dimension...