tailieunhanh - Internet Security Cryptographic Principles, Algorithms and Protocols - Chapter 1

Internetworking and Layered Models Internet ngày nay là một cơ sở hạ tầng thông tin rộng rãi, nhưng nó vốn là một kênh không an toàn để gửi tin nhắn. Khi một thông báo (hoặc gói dữ liệu) được gửi từ một trang web khác, các dữ liệu chứa trong tin nhắn được định tuyến thông qua một số các trang web trung gian trước khi đến đích của nó. Internet được thiết kế để thích ứng với nền tảng không đồng nhất để những người đang sử dụng máy tính và hệ điều hành khác nhau có thể giao. | 1 Internetworking and Layered Models The Internet today is a widespread information infrastructure but it is inherently an insecure channel for sending messages. When a message or packet is sent from one Website to another the data contained in the message are routed through a number of intermediate sites before reaching its destination. The Internet was designed to accommodate heterogeneous platforms so that people who are using different computers and operating systems can communicate. The history of the Internet is complex and involves many aspects - technological organisational and community. The Internet concept has been a big step along the path towards electronic commerce information acquisition and community operations. Early ARPANET researchers accomplished the initial demonstrations of packetswitching technology. In the late 1970s the growth of the Internet was recognised and subsequently a growth in the size of the interested research community was accompanied by an increased need for a coordination mechanism. The Defense Advanced Research Projects Agency DARPA then formed an International Cooperation Board ICB to coordinate activities with some European countries centered on packet satellite research while the Internet Configuration Control Board ICCB assisted DARPA in managing Internet activity. In 1983 DARPA recognised that the continuing growth of the Internet community demanded a restructuring of coordination mechanisms. The ICCB was disbanded and in its place the Internet Activities Board IAB was formed from the chairs of the Task Forces. The IAB revitalised the Internet Engineering Task Force IETF as a member of the IAB. By 1985 there was a tremendous growth in the more practical engineering side of the Internet. This growth resulted in the creation of a substructure to the IETF in the form of working groups. DARPA was no longer the major player in the funding of the Internet. Since then there has been a significant decrease in Internet activity .

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.