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ڈاکٹر الکزنڈر کرم برون
ڈاکٹر الکزنڈر کرم برون
اڈنبرا یونیورسٹی کے مشہور ماہر کیمیات ڈاکٹر الکزنڈر کرم برون کا ۸۵ سال کی عمر میں ا نتقال ہوا۔ انھوں نے تقریباً ۵۰ سال تک یونیورسٹی میں خدمات انجام دی تھیں اور تمام دنیا میں اپنے فن کے مستند استاد تسلیم کیے جاتے تھے۔ (جنوری ۱۹۲۳ء)
ریاست قلات میں نظام قضاء کا تحقیقی جائزہ
In Islam the system of Judiciary halds an immense importance the judiciary after faith is counted as an important obligation amongst all other obligations and is eminent and virtous amongst all outs of worships. The virue of judiciary is mentioned at hundreds of places in the Quran and in the Ahadiths. The Progression of the system of judiciary has been hard from the begning of the prophet hood, during the Rashidun ealiphale and is promulgated till tody. Before the existence of Pakistan there were many states amongst which one was the state of Kalat. Where the Baloch Government was setup in 1530 Meer Ahmed Yar Khan was elected as the Khan of Kalat. Who at the very Beginning laid the foundation of the system of judiciary? The details about this would be discussed in the article ahead. The Government of Balochs was set up in Kalat the foundation of system of judiciary here was first of all laid by Mir Ahmed Yar Khan. First of all juges were appointed in every district.Privacy Protection in Collaborative Contents Sharing for Online Social Networks
The Online Social Network (OSN) facilitates users’ openness to a wider audience and social circles, which was not possible before its invention. However, this freedom of social expression and sharing of personal information may lead to violate the privacy of an individual and content. OSN has issue of privacy protection, which can be data about a user or the contents shared by user, especially in a group communication. The primaryobjectiveofthisresearchworkistoprotecttheprivacyofthecontentsthatare shared within the group. In general, OSN’s group communication can be divided into Open Group and Closed Group. In an Open Group, the contents are shared among the group members and further sharing is allowed. On the other hand, in Closed Group the contents are shared among the group members only. In Open Group, the problem withOSNisthatoncethecontentisshared,thedataownerorco-ownerhasnocontrol over its further distribution. Thus we provide a framework for collaborative content sharing which transfers the control of data dissemination from the service providers to data owner or co-owner. In the proposed framework, an Access Management Server (AMS)isintroducedasamiddlewaretointeractwiththeOSNserverandmanagesusers. The AMS encrypts the content before uploading to the OSN server and creates secret sharesoftheencryptionkeythatcanbeusedfortheauthorizationofaco-ownertothe content. Similarly,furthersharingofcontentwithotherusers(Viewers)isallowedwith the consent of threshold number of co-owners provided by the data owner. In Closed vii Group, the content is shared within the group members only, and no further sharing is allowed. Thegroupcommunicationcanbesecuredusingthecryptographictechniques, but group key management is a problem, especially in case of untrusted server. This work provides, a Scalable Group Key Management Protocol (SGKMP) to generate the shared group key and its procedure for modification in case a user leaves or joins the group. The key setup phase of the proposed protocol requires two rounds to complete it irrespective of group size, in contrast to the existing protocols that need n rounds to achieve it, where n is the total number of users in the group. Similarly, the protocol is scalable enough to update key by even a single group member without involving all groupmemberTop Institutes
Quaid-i-Azam University 19341 International Islamic University 13485 Allama Iqbal Open University 6745 University of Management and Technology 6421 University of the Punjab 6331 COMSATS University Islamabad 5859 Riphah International University 4537 University of Karachi 3239 University of Engineering and Technology 2261 University of Peshawar 2068
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