# Find the private exponent used by RSA encryption when the public ke...

## Question

Find the private exponent used by RSA encryption when the public key is formed by modulus N=221 and public exponent e=11.

## Solution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

Step 1)
We factorize the modulus N= 221 in two prime factors p and q.
We notice that 221= 17 * 13 => p=17 and q=13

Step 2)
We compute the Euler’s totient.
Φ(n) = (p-1)*(q-1)=(17-1)*(13-1)=16*12=192...

By purchasing this solution you'll be able to access the following files:
Solution.docx.

\$5.00
for this solution

PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

### Find A Tutor

View available Cryptography Tutors

Get College Homework Help.

Are you sure you don't want to upload any files?

Fast tutor response requires as much info as possible.