1. The ciphertext CRWWZ was encrypted using an affine cipher. The plaintext starts with ha. Decrypt the message. 2. Decrypt the following Caesar encryptions by trying the various possible shifts until you obtain readable text. 'NJACQYAXERMNBNWXDPQCXBJCRBOHNENAHVJWBWNNMBKD- CWXCNENAHVJWBPANNM’ 3. (a) Suppose that you have an alphabet of 26 letters how many possible simple substitution ciphers are there? (b) Determine the number of keys in an Affine Cipher in an alphabet system with i. 32 alphabets ii. 100 alphabets
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Queston 2 only please
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
