G22.3210-001/G63.2170 Introduction to Cryptography
November 4, 2008
Lecture 10
Lecturer: Yevgeniy Dodis Fall 2008
Last time we defined several modes of operation for encryption. Today we prove their security, and then spend the rest of the lecture studyin
Class CS 6903, Lecture n. 1
Welcome to the class!
Please check the syllabus online (it should contain all
you need to know about this class)
Lecture 1
CS 6903 Slides prepared by: Giovanni Di Crescenzo NYU Tandon SoE
1
Summary of Lecture 1
Lecture 1
Crypto
Network Security
CS 6823 - Lecture 1
Security Basics
Phillip Mak
[email protected]
CS 6823 - Network Security
Lesson Objectives
Define and explain basic security terminology
Explain how vulnerabilities in one system affects another
system
Define the differe
Class CS 6903, Lecture n. 2
Welcome to Lecture 2!
In Lecture 1 we studied:
Classical Cryptography, Encryption with Perfect Secrecy
Lecture 2
CS 6903 Slides prepared by: Giovanni Di Crescenzo NYU Tandon
1
Summary of Lecture 2
More Background on Algorithms
New York University Tandon School of Engineering
Computer Science Department
Course Outline for CS-GY 6903-I (15654) and CS-UY 4783-A (16989)
Semester: Spring 2017
Professor: Giovanni Di Crescenzo
Time: Tuesday, 6pm-8:30pm EST. Location: 2 MetroTech, room
Class CS 6903, Lecture n. 6
Welcome to Lecture 6!
In Lectures 1-5 we studied:
Classical cryptography, encryption with perfect secrecy
Background on algorithms, complexity theory. Modern cryptography:
principles, primitives, and a public-key cryptosystem
A
Class CS 6903, Lecture n. 4
Welcome to Lecture 4!
In Lectures 1-3 we studied:
Classical cryptography, encryption with perfect secrecy
Background on algorithms, complexity theory. Modern cryptography:
principles, primitives, and a public-key cryptosystem
A
Class CS 6903, Lecture n. 5
Welcome to Lecture 5!
In Lectures 1-4 we studied:
Classical cryptography, encryption with perfect secrecy
Background on algorithms, complexity theory. Modern cryptography:
principles, primitives, and a public-key cryptosystem
A
http:/pastebin.com/DjWx9ZL1
Part 1 - - 0/15 Answered Questions, 75.0 Points
unanswered question1. Let us denote as "X ci Y" the fact that random variables X and Y are computationally indistinguishable. For any random variables X,Y, consider the statements
G22.3210-001/G63.2170 Introduction to Cryptography
September 30, 2008
Lecture 5
Lecturer: Yevgeniy Dodis Fall 2008
In this lecture we formalize our understanding of next-bit security and its relationship to pseudorandomness. Namely, we prove that next-bit
G22.3210-001/G63.2170 Introduction to Cryptography
Sep 16, 2008
Lecture 3
Lecturer: Yevgeniy Dodis
Fall 2008
This lecture mainly discusses some basic facts about Z, Zp , Zn . Special interest is given to
the computational complexity of various operations
G22.3210-001/G63.2170 Introduction to Cryptography
September 2, 2008
Lecture 1
Lecturer: Yevgeniy Dodis
Fall 2008
These notes dene the problem of secure communication, identify the relevant agents, and offer
some assumptions about those agents. An initial
G22.3210-001/G63.2170 Introduction to Cryptography
Sep 23, 2008
Lecture 4
Lecturer: Yevgeniy Dodis
Fall 2008
This lecture will study the notion of hardcore bit for a given OWF f . Intuitively, such
a hardcore bit h(x) is easy to compute from x, but almost
G22.3210-001/G63.2170 Introduction to Cryptography
October 14, 2008
Lecture 7
Lecturer: Yevgeniy Dodis
Fall 2008
Last time we proved that if there exists a secure PKE E to encrypt one bit, then there
also exists a secure PKE E to encrypt as many bits as w
G22.3210-001/G63.2170 Introduction to Cryptography
December 2, 2008
Lecture 14
Lecturer: Yevgeniy Dodis
Fall 2008
This lecture is on Commitment Schemes. Informally, a commitment scheme abstracts
the notion of a locked box: the contents of the box are hidd
G22.3210-001/G63.2170 Introduction to Cryptography
November 18, 2008
Lecture 12
Lecturer: Yevgeniy Dodis
Fall 2008
We saw that -universal hash families are very useful in the design of pseudorandom
functions (and, thus, message authenticated codes). We wi
G22.3210-001/G63.2170 Introduction to Cryptography
November 11, 2008
Lecture 11
Lecturer: Yevgeniy Dodis
Fall 2008
Last time we dened almost universal hash functions, and showed how they are useful
for message authentication. Recall, such family H = cfw_h
Class CS 6903, Lecture n. 3
Welcome to Lecture 3!
In Lecture 1-2 we studied:
Classical cryptography, encryption with perfect secrecy
Background on algorithms, complexity theory. Modern cryptography:
principles, primitives, and a public-key cryptosystem
Le