# Understanding Cryptography by Christof Paar and Jan Pelzl - Chapter 4 Solutions - Ex4.4

- 1 min- Return to index
- Exercise 4.1
- Exercise 4.2
- Exercise 4.3
- Exercise 4.4
- Exercise 4.5
- Exercise 4.6
- Exercise 4.7
- Exercise 4.8
- Exercise 4.9
- Exercise 4.10
- Exercise 4.11
- Exercise 4.12
- Exercise 4.13
- Exercise 4.14
- Exercise 4.15
- Exercise 4.16

## Exercise 4.4

Addition in : Compute in using the irreducible polynomial . What is the influence of the choice of the reduction polynomial on the computation?

### Solution

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The choice of reduction polynomial has no impact on the computation, since it is not possible for the result of addition to be outside the Field and therefore require reduction.

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