منابع مشابه
On the security of the SARI image authentication system
In this paper we investigate the image authentication system SARI, proposed by C.Y. Lin and S.F. Chang [1], that distinguishes JPEG compression from malicious manipulations. In particular, we look at the image digest component of this system. We show that if multiple images have been authenticated with the same secret key and the digests of these images are known to an attacker, Oscar, then he ...
متن کاملIsolation of medically important fungi from cockroaches trapped at hospitals of Sari, Iran
This study was done to evaluate the presence of medical important fungi on the external surface of cockroaches collected from the public and residential areas of three hospitals of Sari, Iran. A total of 38 cockroaches were caught from staff resting rooms / working areas, the ward floors and patient rooms, during two consecutive days at three hospitals between December and November, 2013. The f...
متن کاملNew attacks on SARI image authentication system
The image authentication system SARI proposed by Lin and Chang passes JPEG compression and rejects other malicious manipulations. Some vulnerabilities of the system have been reported recently. In this paper, we propose two new attacks that can compromise the SARI system. The first attack is called a histogram attack which modifies DCT coefficients yet maintains the same relationship between an...
متن کاملSurvey of Suicide Attempts in Sari
OBJECTIVE Studying suicide can be of assistance to prepare the ground for the adoption of effective preventative measures. In the present study, our aim was an in-depth review of suicide epidemiology in the city of Sari, in the northern part of Iran. Our focus was on geo-demographic and other risk factors affecting the frequency of suicide in order to demonstrate populations with greater risk o...
متن کاملfungal keratitis at boo ali sina hospital, sari, iran
purpose: to report the prevalence of fungal keratitis as a cause of corneal ulcer in patients refered to boo-ali sina hospital in sari and identify the predisposing factors. methods: this prospective study was conducted on patients who presented with corneal ulcers to the ophthalmology ward at boo-ali sina hospital in sari, 2004-2005. using standard techniques, a corneal scraping was performed...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Southeast Asian Review of English
سال: 2019
ISSN: 0127-046X
DOI: 10.22452/sare.vol56no1.13