제공자:

Stanford University

About this Course

4.8

2,135 ratings

•

448 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....

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

일정에 따라 마감일을 재설정합니다.

완료하는 데 약 29시간 필요

자막: English

CryptographyCryptographic AttacksPublic-Key CryptographySymmetric-Key Algorithm

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

일정에 따라 마감일을 재설정합니다.

완료하는 데 약 29시간 필요

자막: English

섹션

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. ...

12개 동영상(총 210분), 2 readings, 2 quizzes

What is Cryptography?15m

History of Cryptography18m

Discrete Probability (Crash Course)18m

Discrete Probability (Crash Course, Cont.)13m

Information Theoretic Security and The One Time Pad18m

Stream Ciphers and Pseudo Random Generators19m

Attacks on Stream Ciphers and The One Time Pad23m

Real-World Stream Ciphers19m

PRG Security Definitions24m

Semantic Security15m

Stream Ciphers are Semantically Secure [optional]10m

Lecture slides for all six weeks10m

Course overview and additional reading resources10m

Week 1 - Problem Set20m

Week 1 - Programming Assignment [optional]2m

섹션

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. ...

11개 동영상(총 167분), 2 quizzes

The Data Encryption Standard21m

Exhaustive Search Attacks19m

More Attacks on Block Ciphers 16m

The AES Block Cipher13m

Block Ciphers From PRGs11m

Review: PRPs and PRFs11m

Modes of Operation: One Time Key7m

Security for Many-Time Key (CPA security)22m

Modes of Operation: Many Time Key (CBC)16m

Modes of Operation: Many Time Key (CTR) 9m

Week 2 - Problem Set18m

Week 2 - Programming Assignment [Optional]8m

섹션

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....

11개 동영상(총 130분), 2 quizzes

MACs Based On PRFs9m

CBC-MAC and NMAC19m

MAC Padding8m

PMAC and the Carter-Wegman MAC15m

Introduction 10m

Generic Birthday Attack14m

The Merkle-Damgard Paradigm 11m

Constructing Compression Functions8m

HMAC7m

Timing attacks on MAC verification8m

Week 3 - Problem Set20m

Week 3 - Programming Assignment [Optional]2m

섹션

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....

12개 동영상(총 167분), 2 quizzes

Definitions 5m

Chosen Ciphertext Attacks12m

Constructions From Ciphers and MACs20m

Case Study: TLS 1.217m

CBC Padding Attacks14m

Attacking Non-Atomic Decryption 9m

Key Derivation13m

Deterministic Encryption14m

Deterministic Encryption: SIV and Wide PRP20m

Tweakable Encryption14m

Format Preserving Encryption12m

Week 4 - Problem Set20m

Week 4 - Programming Project [Optional]2m

4.8

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대학: BC•Mar 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.

대학: LG•Dec 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.

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....

When will I have access to the lectures and assignments?

Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.

What will I get if I purchase the Certificate?

When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.

What is the refund policy?

Is financial aid available?

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