Applied Cryptography

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timer Asked: Dec 22nd, 2017
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Question description

The final exam includes the topics discussed in class throughout the semester. This review sheet also provides the structure of the exam, and compiles a list of articles and concepts discussed in class that will be present on the final exam.

Part 2:

Analyze the newspaper articles provided, making sure to apply the appropriate concepts learned in class (ex: moral panic, secondary exploitation, framing, etc.). This is a short essay

Tutor Answer

ProfIan
School: University of Virginia

Hello, kindly, i request you to add me some time i finalize the work. Thank you.

Running Head: APPLIED CRYPTOGRAPHY

Applied Cryptography
NAME OF STUDENT
INSTITUTION
PROFESSOR’S NAME
DATE

1

2

APPLIED CRYPTOGRAPHY
Applied Cryptography
Table of Contents
1 Introduction
1.1 Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Hash Functions
2.1 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Cryptographic Hash Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Pseudo-Random Number Generators
3.1 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Internals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Extractors
4.1 Example of an Extractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Von Neumman Extractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Intro to Symmetric Key Encryption
6 One-Time Pad
6.1 Drawbacks of OTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Stream Ciphers
7.1 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 RC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Block Ciphers
8.1 Common Block Ciphers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Security Definitions
9.1 One-Time Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2 Semantic Security (CPA-Secure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Message Authentication Codes (MACs)
10.1 Building a MAC from a hash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 Block Cipher-Based CBC-MAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Authenticated Encryption (AE)
11.1 MAC-then-Encrypt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2 Encrypt-then-MAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.3 Other AE Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Number Theory
12.1 Algebraic Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

APPLIED CRYPTOGRAPHY
12.2 Integers mod p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3 Exponentiation mod p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.4 Subgroups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.5 Integers mod p Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Di-e-Hellman Key Exchange
13.1 Decisional Di-e-Hellman (DDH) Assumption . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2 Blinding in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.3 Di-e Hellman Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Public Key Encryption (Asymmetric Key)
14.1 ElGamal Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.2 ElGamal Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.3 Homomorphic (Malleability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.4 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.5 Proof of CPA-Secure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.6 ElGamal non CCA-Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 Zero-Knowledge Proofs (ZKPs)
15.1 Shnoor Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.2 3-move (Sigma) Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.3 Fiat-Shamir Heuristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 Digital Signatures
16.1 Signature vs. MAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16.2 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16.3 Schnorr Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 Building CCA-Secure
17.1 Naive Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.2 STS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 RSA Setting
18.1 “Textbook:" RSA Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18.2 Strength...

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Review

Anonymous
Thanks, good work

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