CS.202: Intro to Cryptography
10/20/2016
Solution 3
Notation: Let a and b be bitstrings. a|b stands for the concatenation of a and b, |a|
stands for the bitlength of a, ai stands for the i-th bit of a
ICS.202: Intro to Applied Cryptography
10/7/2016
Solutions to Homework 1
1
OTP Cipher Variants
1.1 Let S = cfw_00, 01, 10. Note that S is a set of 2-bit strings with string 11 missing.
Consider the fo
file:/C|/Documents%20and%20Settings/Linda%20Grauer/My%20Documents/Dolores/UC%20Irvine-Harvest/CS%20201/hmw1.htm
Homework 1: Due Monday, October 15 (or email me if you need time till Wednesday). First
CS.202: Intro to Cryptography
10/20/2016
Solution 2
This homework will not count towards the grade, but should do it for the sake of
your own understanding, and you should do it this week because it g
ICS 201: Cryptography and Communication Security
10/19/2007
Solutions to homework 1
Problem 2.2
If encryption is secure then by Definition 2.1 this condition implies that P r[M = m] = P r[M = m ] f
CS.202: Intro to Cryptography
10/7/2016
Feasible Attack = Polynomial-time + non-negligible advantage
Will not grade solutions, but do it by Thursday, 10/13: Will release solutions then.
This homework
3.3
CS 201: Introduction to Cryptography
Fall Quarter, 2007
Instructor: Stanislaw Jarecki M-W, 3:30-5 ICS 243 ICS 6A and ICS 161/261, also see below Jonathan Katz, Yehuda Lindell,"Introduction to Mod
ICS 201: Cryptography and Communication Security
10/22/2007
Homework 2
Due Monday, Oct 29, in class
Problem 1 and 2
Do exercises 3.2 and 3.4.
Problem 3
Consider a stateful encryption scheme, e.g.