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Introduction to Cryptography by Christof Paar

Twenty-four university lectures introduce modern applied cryptography through a two-semester foundation for IT security students. The course uses a mostly self-contained academic format, aims to remain accessible with high-school mathematics, and pairs naturally with the textbook Understanding Cryptography. It suits learners seeking a rigorous route into cryptographic concepts rather than a short-form overview; its 2010/11 lecture setting also makes it useful to supplement with current security standards and practice.

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Editorially reviewed:

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Editorial focusOpen Courseware University Lectures
Audience scale71K subscribers
Videos27 videos
Active since30 January 2014

Editorial note

WorthWatch verdict

Best for

Independent learners building a rigorous cryptography foundation

Strength

A coherent lecture sequence connecting mathematical principles to applied cryptographic systems

Consider if

you want a sustained course format and can supplement older material with current standards

Recent videos

Latest from the source

Lecture 23: Introduction to Hash-based Post-quantum Cryptography (PQC) by Christof Paar

26 August 2025

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Lecture 24: PQC Signatures with the Merkle Signature Scheme (MSS) by Christof Paar

26 August 2025

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Lecture 22: SHA-3 Hash Function by Christof Paar

12 October 2017

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Deep Dive

Introduction to Cryptography by Christof Paar: A University Route into Applied Cryptography

Main focus

Introduction to Cryptography by Christof Paar presents a 24-lecture university foundation in modern applied cryptography, developed across two semesters for IT security students. The sequence is largely self-contained and accessible with high-school mathematics. A companion textbook supports learners seeking further detail.

Why it matters

Building a serious foundation before tackling security engineering or cryptography research? This lecture sequence offers a sustained route through core concepts rather than a rapid overview, with enough structure to support independent study alongside the textbook.

Style

Twenty-four classroom lectures unfold as a two-semester academic course, favoring extended explanation over compressed tutorials. Much of the material is designed to stand on its own, while the textbook provides a natural companion for exercises and deeper study.

Consistency

The 24-lecture, two-semester sequence is organized as a coherent course, making ordered viewing more useful than dipping in at random. The companion textbook extends the path for learners who want exercises and additional detail.

Editorial note

Treat the series as a conceptual foundation, then compare implementation choices, standards, and security guidance with current authoritative documentation before using them in real systems.