Course 5 - Casear Cipher and RSA Cipher

Course 5 - Casear Cipher and RSA Cipher

1. What is the ciphertext?

Hint 1

Plaintext: lizards are kind

Hint 2

Key: 5

Solution

qnefwix fwj pnsi

2. What is the ciphertext?

Hint 1

Ciphertext: Qmpsfawbrg

Hint 2

Key: 14

Solution

Cyberminds

3. What is the ciphertext?

Hint 1

Ciphertext: jsnbih cm wixy

Hint 2

Key: -6

Solution

python is code

4. What is the ciphertext?

Hint 1

Ciphertext: Fdqdgd lv d frxqwub

Hint 2

Key: We won’t tell you… but you can try brute forcing this prompt…

Solution

Canada is a country

RSA Cipher:

1. Using the prime numbers 17 and 19, calculate the public key (n, e) and the private key (d).

Solution

(n,e) = (323, 23), d = 263

2. Decrypt this message with the keys found above: 74, 279, 108, please use the ASCII encoding standard.

Solution

cat

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Table of Contents

Course 5 - Introduction

Public/Private Encryption

Casear Cipher/RSA Cipher

Python Encryption

Cryptographic Attacks

Cryptography Quiz