課程信息
4.8
2,130 ratings
447 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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100% 在線課程

立即開始,按照自己的計劃學習。
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Clock

建議:5 hours/week

完成時間大約為29 小時
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English

字幕:English

您將獲得的技能

CryptographyCryptographic AttacksPublic-Key CryptographySymmetric-Key Algorithm
Globe

100% 在線課程

立即開始,按照自己的計劃學習。
Calendar

可靈活調整截止日期

根據您的日程表重置截止日期。
Clock

建議:5 hours/week

完成時間大約為29 小時
Comment Dots

English

字幕:English

教學大綱 - 您將從這門課程中學到什麼

1

章節
Clock
完成時間為 4 小時

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 個視頻(共 210 分鐘), 2 個閱讀材料, 2 個測驗
Video12 個視頻
What is Cryptography?15分鐘
History of Cryptography18分鐘
Discrete Probability (Crash Course)18分鐘
Discrete Probability (Crash Course, Cont.)13分鐘
Information Theoretic Security and The One Time Pad18分鐘
Stream Ciphers and Pseudo Random Generators19分鐘
Attacks on Stream Ciphers and The One Time Pad23分鐘
Real-World Stream Ciphers19分鐘
PRG Security Definitions24分鐘
Semantic Security15分鐘
Stream Ciphers are Semantically Secure [optional]10分鐘
Reading2 個閱讀材料
Lecture slides for all six weeks10分鐘
Course overview and additional reading resources10分鐘
Quiz2 個練習
Week 1 - Problem Set20分鐘
Week 1 - Programming Assignment [optional]2分鐘

2

章節
Clock
完成時間為 3 小時

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 個視頻(共 167 分鐘), 2 個測驗
Video11 個視頻
The Data Encryption Standard21分鐘
Exhaustive Search Attacks19分鐘
More Attacks on Block Ciphers 16分鐘
The AES Block Cipher13分鐘
Block Ciphers From PRGs11分鐘
Review: PRPs and PRFs11分鐘
Modes of Operation: One Time Key7分鐘
Security for Many-Time Key (CPA security)22分鐘
Modes of Operation: Many Time Key (CBC)16分鐘
Modes of Operation: Many Time Key (CTR) 9分鐘
Quiz2 個練習
Week 2 - Problem Set18分鐘
Week 2 - Programming Assignment [Optional]8分鐘

3

章節
Clock
完成時間為 3 小時

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 個視頻(共 130 分鐘), 2 個測驗
Video11 個視頻
MACs Based On PRFs9分鐘
CBC-MAC and NMAC19分鐘
MAC Padding8分鐘
PMAC and the Carter-Wegman MAC15分鐘
Introduction 10分鐘
Generic Birthday Attack14分鐘
The Merkle-Damgard Paradigm 11分鐘
Constructing Compression Functions8分鐘
HMAC7分鐘
Timing attacks on MAC verification8分鐘
Quiz2 個練習
Week 3 - Problem Set20分鐘
Week 3 - Programming Assignment [Optional]2分鐘

4

章節
Clock
完成時間為 3 小時

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 個視頻(共 167 分鐘), 2 個測驗
Video12 個視頻
Definitions 5分鐘
Chosen Ciphertext Attacks12分鐘
Constructions From Ciphers and MACs20分鐘
Case Study: TLS 1.217分鐘
CBC Padding Attacks14分鐘
Attacking Non-Atomic Decryption 9分鐘
Key Derivation13分鐘
Deterministic Encryption14分鐘
Deterministic Encryption: SIV and Wide PRP20分鐘
Tweakable Encryption14分鐘
Format Preserving Encryption12分鐘
Quiz2 個練習
Week 4 - Problem Set20分鐘
Week 4 - Programming Project [Optional]2分鐘
4.8
Direction Signs

26%

完成這些課程後已開始新的職業生涯
Briefcase

83%

通過此課程獲得實實在在的工作福利

熱門審閱

創建者 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.

創建者 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.

講師

Dan Boneh

Professor
Computer Science

關於 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....

常見問題

  • 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.

  • 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.

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