A message on the Internet is sent through several networks and via different stations on its way to the target system. The individual stations are responsible for ensuring that the message is properly forwarded and finally delivered to the correct recipient. Each of these stations, if the message is sent in plain text, can receive the message and read its content. This means that a potential attacker, if he controls one of these intermediate systems, can also read the content of the message and even modify it before retransmitting it. Such attacks can have extreme effects on communication. In this course we will look at how and whether your connection to online banking is secure or whether the content of an e-mail is trustworthy. For this purpose we will deal with the basics of cryptography, security objectives and different types of encryption. In addition, we will provide insights into different models and standards that are used in practice.
13 Januar 2021 - 27 Januar 2021
Kurssprache: English
Advanced, Beginner, Cybersecurity, Internet

Kursinformationen

A message on the Internet is sent through several networks and via different stations on its way to the target system. The individual stations are responsible for ensuring that the message is properly forwarded and finally delivered to the correct recipient. Each of these stations, if the message is sent in plain text, can receive the message and read its content. This means that a potential attacker, if he controls one of these intermediate systems, can also read the content of the message and even modify it before retransmitting it. Such attacks can have an extreme impact on communication, as information is no longer confidential and the credibility of the message can no longer be established.

For this reason, encryption procedures are used to ensure that the content of messages can only be interpreted by the sender and the recipient. This ensures that the information remains confidential. Furthermore, there are procedures that can be used to detect whether there has been a change in the information in a message. These security procedures are currently in widespread use and are used in particular for sensitive services such as online banking.

In this course we will look at how and whether your connection to online banking is secure or whether the content of an e-mail is trustworthy. For this we will deal with the basics of cryptography, security objectives and different types of encryption. In addition, we will provide insights into different models and standards that are used in practice.

Take the cybersecurity exam and get a qualified certificate!

This course content is part of the cybersecurity series on openHPI. The series consists of three courses and ends with the Cybersecurity exam in March 2021. By the Cybersecurity exam, you have the chance to receive a free record of achievement or a qualified certificate. Therefore, please attend the three courses Confidential Communication in the Internet, Digital Identities, and Cyberthreats: Malware and finish them with a confirmation of participation. This allows you to register for the cybersecurity exam which covers questions from all three courses.

Contents:

  • Introduction
  • Safety objectives
  • Cryptography
  • Cryptoprotocols & Attacks
  • Certificates and Trust Center
  • Encryption
  • Signatures
  • Technical digressions (AES, hash functions, ...)

Key data on the course

  • Required skills: general IT knowledge, solid mathematical knowledge
  • Course level: Basics, but courses also go into depth
  • Target group: Everyone interested in encryption methods and digital signatures

Follow us on Twitter: @openHPI. For tweets about this course please use the hashtag #confidentialcommunication2021
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More video lectures can be found at www.tele-task.de.

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Der Kurs ist kostenlos. Legen Sie sich einfach ein Benutzerkonto auf openHPI an und nehmen Sie am Kurs teil!
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Eingeschriebene Nutzer: 4625

Anforderungen für Leistungsnachweise

  • Das Zeugnis erhält, wer in der Summe aller benoteten Aufgaben mindestens 50% der Höchstpunktzahl erreicht hat.
  • Die Teilnahmebestätigung erhält, wer auf zumindest 80% der Kursunterlagen zugegriffen hat.

Mehr Informationen finden Sie in den Richtlinien für Leistungsnachweise.

Dieser Kurs wird angeboten von

Prof. Dr. Christoph Meinel

Christoph Meinel (Univ.-Prof., Dr. sc. nat., Dr. rer. nat., 1954) ist wissenschaftlicher Direktor und Geschäftsführer des Hasso-Plattner-Instituts für Digital Engineering gGmbH (HPI). Christoph Meinel ist ordentlicher Professor (C4) für Informatik und hat den Lehrstuhl für Internet-Technologien und Systeme am HPI inne. Seine besonderen Forschungsinteressen liegen in den Bereichen Internet- und Informationssicherheit und Web 3.0: Semantic, Social, Service Web, sowie im Bereich innovativer Internetanwendungen und Systeme, vor allem zum e-Learning & Tele-Teaching und zur Telemedizin. Daneben ist er aktiv in der Innovationsforschung rund um die Stanforder Innovationsmethode des Design Thinking. Frühere Forschungsinteressen lagen im Bereich der theoretischen Grundlagen der Informatik in den Gebieten Komplexitätstheorie und effiziente OBDD-basierte Algorithmen und Datenstrukturen.

Christoph Meinel lehrt am HPI in den Bachelor- und Masterstudiengängen "IT-Systems Engineering" und in der School of Design Thinking. Er bietet MOOCs an auf der openHPI-Plattform und betreut zahlreiche Doktoranden. Zudem ist er Honorarprofessor an der Informatik-Fakultät der Technischen Universität Peking und lehrt als Gastprofessor an der Shanghai Universität. An der Universität Luxembourg ist er Research Fellow am interdisziplinären Zentrum (SnT). Zusammen mit Prof. Larry Leifer von der Stanford University ist er Programmdirektor des HPI-Stanford Design Thinking Research Programms.

Christoph Meinel ist Autor bzw. Co-Autor von 9 Büchern und 4 Anthologien sowie diversen Tagungsbänden. Er hat mehr als 400 wissenschaftliche Arbeiten in angesehenen wissenschaftlichen Journalen und auf internationalen Konferenzen veröffentlicht. Darüber hinaus ist er Herausgeber der elektronischen Fachzeitschriften ECCC – Electronic Colloquium on Computational Complexity, ECDTR - Electronic Colloquium on Design Thinking Research, des IT-Gipfelblogs und des tele-TASK-Archivs.