Об этом курсе
4.8
2,068 ratings
437 reviews
Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key. Throughout the course participants will be exposed to many exciting open problems in the field and work on fun (optional) programming projects. In a second course (Crypto II) we will cover more advanced cryptographic tasks such as zero-knowledge, privacy mechanisms, and other forms of encryption....
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Предполагаемая нагрузка: 5 hours/week

Прибл. 29 ч. на завершение
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English

Субтитры: English

Приобретаемые навыки

CryptographyPublic-Key CryptographyCryptographic AttacksSymmetric-Key Algorithm
Globe

Только онлайн-курсы

Начните сейчас и учитесь по собственному графику.
Calendar

Гибкие сроки

Назначьте сроки сдачи в соответствии со своим графиком.
Clock

Предполагаемая нагрузка: 5 hours/week

Прибл. 29 ч. на завершение
Comment Dots

English

Субтитры: English

Программа курса: что вы изучите

1

Раздел
Clock
4 ч. на завершение

Course overview and stream ciphers

Week 1. This week's topic is an overview of what cryptography is about as well as our first example ciphers. You will learn about pseudo-randomness and how to use it for encryption. We will also look at a few basic definitions of secure encryption. ...
Reading
12 видео (всего 210 мин.), 2 материалов для самостоятельного изучения, 2 тестов
Video12 видео
What is Cryptography?15мин
History of Cryptography18мин
Discrete Probability (Crash Course)18мин
Discrete Probability (Crash Course, Cont.)13мин
Information Theoretic Security and The One Time Pad18мин
Stream Ciphers and Pseudo Random Generators19мин
Attacks on Stream Ciphers and The One Time Pad23мин
Real-World Stream Ciphers19мин
PRG Security Definitions24мин
Semantic Security15мин
Stream Ciphers are Semantically Secure [optional]10мин
Reading2 материала для самостоятельного изучения
Lecture slides for all six weeks10мин
Course overview and additional reading resources10мин
Quiz2 практического упражнения
Week 1 - Problem Set20мин
Week 1 - Programming Assignment [optional]2мин

2

Раздел
Clock
3 ч. на завершение

Block Ciphers

Week 2. We introduce a new primitive called a block cipher that will let us build more powerful forms of encryption. We will look at a few classic block-cipher constructions (AES and 3DES) and see how to use them for encryption. Block ciphers are the work horse of cryptography and have many applications. Next week we will see how to use block ciphers to provide data integrity. The optional programming assignment this week asks students to build an encryption/decryption system using AES. ...
Reading
11 видео (всего 167 мин.), 2 тестов
Video11 видео
The Data Encryption Standard21мин
Exhaustive Search Attacks19мин
More Attacks on Block Ciphers 16мин
The AES Block Cipher13мин
Block Ciphers From PRGs11мин
Review: PRPs and PRFs11мин
Modes of Operation: One Time Key7мин
Security for Many-Time Key (CPA security)22мин
Modes of Operation: Many Time Key (CBC)16мин
Modes of Operation: Many Time Key (CTR) 9мин
Quiz2 практического упражнения
Week 2 - Problem Set18мин
Week 2 - Programming Assignment [Optional]8мин

3

Раздел
Clock
3 ч. на завершение

Message Integrity

Week 3. This week's topic is data integrity. We will discuss a number of classic constructions for MAC systems that are used to ensure data integrity. For now we only discuss how to prevent modification of non-secret data. Next week we will come back to encryption and show how to provide both confidentiality and integrity. This week's programming project shows how to authenticate large video files. Even if you don't do the project, please read the project description --- it teaches an important concept called a hash chain....
Reading
11 видео (всего 130 мин.), 2 тестов
Video11 видео
MACs Based On PRFs9мин
CBC-MAC and NMAC19мин
MAC Padding8мин
PMAC and the Carter-Wegman MAC15мин
Introduction 10мин
Generic Birthday Attack14мин
The Merkle-Damgard Paradigm 11мин
Constructing Compression Functions8мин
HMAC7мин
Timing attacks on MAC verification8мин
Quiz2 практического упражнения
Week 3 - Problem Set20мин
Week 3 - Programming Assignment [Optional]2мин

4

Раздел
Clock
3 ч. на завершение

Authenticated Encryption

Week 4. This week's topic is authenticated encryption: encryption methods that ensure both confidentiality and integrity. We will also discuss a few odds and ends such as how to search on encrypted data. This is our last week studying symmetric encryption. Next week we start with key management and public-key cryptography. As usual there is also an extra credit programming project. This week's project involves a bit of networking to experiment with a chosen ciphertext attack on a toy web site....
Reading
12 видео (всего 167 мин.), 2 тестов
Video12 видео
Definitions 5мин
Chosen Ciphertext Attacks12мин
Constructions From Ciphers and MACs20мин
Case Study: TLS 1.217мин
CBC Padding Attacks14мин
Attacking Non-Atomic Decryption 9мин
Key Derivation13мин
Deterministic Encryption14мин
Deterministic Encryption: SIV and Wide PRP20мин
Tweakable Encryption14мин
Format Preserving Encryption12мин
Quiz2 практического упражнения
Week 4 - Problem Set20мин
Week 4 - Programming Project [Optional]2мин
4.8
Direction Signs

26%

начал новую карьеру, пройдя эти курсы
Briefcase

83%

получил значимые преимущества в карьере благодаря этому курсу

Лучшие рецензии

автор: LGDec 16th 2017

This course gives is perfect to start learning cryptography, explanations are detailed, topics carefully selected combining theory with real world examples and making emphasis in important details.

автор: BCMar 11th 2017

Cutting edge cryptography topics. Good explanations and slides, but pause button is highly recommended. Can be a bit too mathematical for the general public, and not very formal for mathematicians.

Преподаватель

Dan Boneh

Professor
Computer Science

О Stanford University

The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is an American private research university located in Stanford, California on an 8,180-acre (3,310 ha) campus near Palo Alto, California, United States....

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