Computer network programming

Lecture Java Programming Language: Introduction has main content such as desktop computing, operating systems, enviroment, programming languages, networks, number systems, storing data in memory, why program in java, a java application, formatting output.

22p lavender2022 22-04-2022 39 2   Download

In this thesis, we investigate the problem of IoT services deployment in Cloud-Fog system to provide IoT services with minimal resource usage cost. We for-mulate the problem using a Mixed-Integer Linear Programming model taking into account the characteristics of computing and transmission resources in Cloud-Fog system as well as the IoT services specific requirements.

55p tamynhan0 04-07-2020 13 3   Download

Software-defined networking aims to change the inflexible state networking, by breaking vertical integration, separating the network’s control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. Consequently, SDN is an important key for resolving aforementioned difficulties.

130p cotithanh000 07-10-2019 29 5   Download

Bài giảng Computer Networks 1 (Mạng Máy Tính 1): Lecture 9 - Socket Programming with Java bao gồm những nội dung về Using InetAddress, Using Socket, Using ServerSocket, Client-Server Application with UDP, UDP Client, Client-Server Application with TCP.

23p cocacola_01 09-12-2015 66 8   Download

Với 7 bài học gồm nhiều chủ đề về công nghệ thông tin, sử dụng các bài đọc và hình minh họa được trích từ sách, báo, các tạp chí chuyên ngành máy tính, Internet, trang Web, sách hướng dẫn và các mẫu tin quảng cáo nhằm giúp học viên thu nhận và phát triển những kỹ năng cần thiết để học các chuyên ngành Công nghệ thông tin sau này. Giáo trình gồm 2 phần, sau đây là phần 1 với nội dung của 4 chủ đề đầu tiên. Mời các bạn cùng tham khảo.

113p uocvongxua03 16-06-2015 1162 173   Download

Communication Architecture Strategy for connecting host computers and other communicating equipment. Defines necessary elements for data communication between devices. A communication architecture, therefore, defines a standard for the communicating hosts. A programmer formats data in a manner defined by the communication architecture and passes it on to the communication software. Separating communication functions adds flexibility, for example, we do not need to modify the entire host software to include more communication devices....

18p doanhung_dtvtk10 19-03-2013 67 5   Download

WLAN technologies are becoming increasingly popular, and promise to be the platform for many future applications: Home Entertainment Networking Example WLAN/WPAN Technologies: IEEE 802.11

34p muathu_102 28-01-2013 83 23   Download

Các máy chủ Web (Webserver) luôn là những vùng đất màu mỡ cho các hacker tìm kiếm các thông tin giá trị hay gây rối vì một mục đích nào đó. Hiểm hoạ có thể là bất cứ cái gì từ kiểu tấn công từ chối dịch vụ, quảng cáo các website có nội dung không lành mạnh, xoá, thay đổi nội dung các file hay phần mềm chứa mã nguy hiểm. Bài viết dưới đây được trình bày như những lời khuyên cho việc đảm bảo an toàn cho các máy chủ Web....

42p muathu_102 28-01-2013 142 50   Download

IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6, 5 and 60 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee (IEEE 802). The base version of the standard was released in 1997 and has had subsequent amendments. These standards provide the basis for wireless network products using the Wi-Fi brand.

18p muathu_102 28-01-2013 57 5   Download

Tham khảo bài thuyết trình 'security protocols: they’re so not easy!', công nghệ thông tin, an ninh - bảo mật phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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For distributed systems and networks, we often should assume that there are adversaries Everywhere in the network Adversary may: eavesdrop, manipulate, inject, alter, duplicate, reroute, etc… Adversary may control a large number of network nodes that are geographically separated Dolev-Yao Threat Model: A very powerful adversarial model that is widely accepted as the standard by which cryptographic protocols should be evaluated Eve, the adversary, can: Obtain any message passing through the network Act as a legitimate user of the network (i.e.

26p muathu_102 28-01-2013 57 1   Download

The Web has become the visible interface of the Internet Many corporations now use the Web for advertising, marketing and sales Web servers might be easy to use but… Complicated to configure correctly and difficult to build without security flaws They can serve as a security hole by which an adversary might be able to access other data and computer systems

19p muathu_102 28-01-2013 47 4   Download

Lots of users and privileges scattered over many platforms and applications. Who are the valid users? What are they entitled to access?How do you keep access rights up-to-date? How do you specify and enforce policy?

29p muathu_102 28-01-2013 48 3   Download

Wireless technology has enormous potential to change the way people and things communicate. Future wireless networks will allow people on the move to communicate with anyone, anywhere, and at any time using a range of high-performance multimedia services. Wireless video will support applications such as enhanced social networking, distance learning and remote medicine. Wireless sensor networks can also enable a new class of intelligent home electronics, smart and energy-efficient buildings and highways, and in-body networks for analysis and treatment of medical conditions....

33p muathu_102 28-01-2013 76 6   Download

Up to this point we have seen: Classical Crypto Symmetric Crypto Asymmetric Crypto These systems have focused on issues of confidentiality: Ensuring that an adversary cannot infer the original plaintext message, or cannot learn any information about the original plaintext from the ciphertext. In today’s lecture we will put a more formal framework around the notion of what information is, and use this to provide a definition of security from an information-theoretic point of view.

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A WLAN is a shared network. An access point is a shared device and functions like a shared Ethernet hub. Data is transmitted over radio waves. Two-way radio communications (half-duplex) are used. The same radio frequency is used for sending and receiving (transceiver).

54p muathu_102 28-01-2013 74 8   Download

We have looked at confidentiality services, and also examined the information theoretic framework for security.

33p muathu_102 28-01-2013 73 4   Download

We have covered basic cryptographic tools that will be useful for building things. But, before you can build, you need to know the structural weaknesses of your tools… We will now talk about these weaknesses… and the subjects of cryptanalysis and protocol failures DES: Internet Challenges and EFF Multiple DES and Meet in the Middle attack RSA: Low Exponent Attacks Protocol Failures… Be careful, here be dragons! Hash Functions: Birthday Attacks and Implications

26p muathu_102 28-01-2013 75 3   Download

We have looked at protocols for distributing and establishing keys used for authentication and confidentiality But who should you give these keys to? Who should you trust? What are the rules governing when to and not to give out security credentials In this lecture, we will look at the broad area of secure and trusted systems We will focus on access control models These methods are often used to abstract the requirements for a computer system But, they hold for general systems where security is a concern (e.g. networks, computers, companies…) ...

35p muathu_102 28-01-2013 74 4   Download

“Access control includes authentication, authorization and audit. It also includes measures such as physical devices, including biometric scans and metal locks, hidden paths, digital signatures, encryption, social barriers, and monitoring by humans and automated systems.” -- Wikipedia

32p muathu_102 28-01-2013 98 4   Download