4.5
20 个评分
2 个审阅

1

## Cryptographic Hash Function

Cryptographic hash function is a fundamental building block in modern cryptography and is used for digital signature, message authentication, anomaly detection, pseudo-random number generator, password security, and so on. This module define cryptographic hash functions and contrast it with ordinary hash functions. It also describes the iterative structure for hash implementation to support the hash requirements. ...
7 个视频 （总计 19 分钟）, 1 个阅读材料, 2 个测验
7 个视频
Module Objectives55
Hash Function55
Insecure Hash Function2分钟
Cryptographic Hash Function Requirements: One-Way and Collision Properties4分钟
Cryptographic Hash Function Security3分钟
Cryptographic Hash Function Structure2分钟
1 个阅读材料
Slides for Cryptographic Hash Function15分钟
1 个练习
Cryptographic Hash Function40分钟
2

## Cryptographic Hash Function Applications

Building on the previous module defining cryptographic hash functions, this module review its uses and applications. We will first describe hash chain, which chains multiple hash functions in sequence, and apply hash chain for generating one-time passwords using a scheme called S/Key. Then, we will use hash functions to construct a binary tree and describe hash tree, also known as Merkle tree. Lastly, we will review the applications of hash function and hash tree for decentralized digital currency in the forms of cryptocurrency or bitcoins. ...
5 个视频 （总计 14 分钟）, 3 个阅读材料, 2 个测验
5 个视频
Hash Chain1分钟
Hash Tree (Merkle Tree)4分钟
Cryptocurrency and Bitcoin1分钟
3 个阅读材料
Lamport's scheme (S/Key)30分钟
Slides for Cryptographic Hash Applications15分钟
2 个练习
Hash Chain and Hash Tree40分钟
Cryptocurrency and TESLA8分钟
3

## Message Authentication Code (MAC)

Message authentication is to protect the message integrity and to perform sender authentication. This module describes message authentication code (MAC) which is based on symmetric keys. It contrasts MAC with hash functions or general encryption/decryption techniques and quantify the brute force attack difficulty for MAC and discuss the security requirements for MAC. The module also reviews two MAC implementations in Data Authentication Algorithm (DAA) and Cipher-Based MAC (CMAC), which are based on the use of block ciphers....
7 个视频 （总计 16 分钟）, 1 个阅读材料, 1 个测验
7 个视频
Message Authentication Approaches and Using Symmetric Encryption for Message Authentication2分钟
Message Authentication Code (MAC)3分钟
Brute-Force Attack on MAC3分钟
MAC Requirements2分钟
Digital Authentication Algorithm (DAA)1分钟
Cipher-Based MAC (CMAC)1分钟
1 个阅读材料
Slides for Message Authentication Code15分钟
1 个练习
Message Authentication Code45分钟
4

## Digital Signature

Like physical signatures in paper transactions, digital signature provides sender authentication and non-repudiation. This module describes how to use public-key pair to ensure the source of the packet. Then, it describes the purpose of digital signatures and the corresponding requirements. Lastly, we review a digital signature construction, which is the basis for many digital signature implementations such as RSA signature and Digital Signature Standard (DSS). ...
5 个视频 （总计 8 分钟）, 1 个阅读材料, 3 个测验
5 个视频
Alice Uses Her Private Key1分钟
Digital Signature Properties Beyond Message Authentication2分钟
Digital Signature Requirements1分钟
Digital Signature Constrcution1分钟
1 个阅读材料
Slides for Digital Signature15分钟
1 个练习
Digital Signature25分钟

## 讲师

### Sang-Yoon Chang

Assistant Professor
Computer Science

## 关于 科罗拉多大学系统

The University of Colorado is a recognized leader in higher education on the national and global stage. We collaborate to meet the diverse needs of our students and communities. We promote innovation, encourage discovery and support the extension of knowledge in ways unique to the state of Colorado and beyond....

## 关于 Applied Cryptography 专项课程

This specialization is intended for the learners interested in or already pursuing a career in computer security or other cybersecurity-related fields. Through four courses, the learners will cover the security of information systems, information entropy, classical cryptographic algorithms, symmetric cryptography, asymmetric/public-key cryptography, hash functions, message authentication codes, digital signatures, key management and distribution, and other fundamental cryptographic primitives and protocols....

## 常见问题

• 注册以便获得证书后，您将有权访问所有视频、测验和编程作业（如果适用）。只有在您的班次开课之后，才可以提交和审阅同学互评作业。如果您选择在不购买的情况下浏览课程，可能无法访问某些作业。

• 您注册课程后，将有权访问专项课程中的所有课程，并且会在完成课程后获得证书。您的电子课程证书将添加到您的成就页中，您可以通过该页打印您的课程证书或将其添加到您的领英档案中。如果您只想阅读和查看课程内容，可以免费旁听课程。