TryHackMe: Cryptography for Dummies

Become familiar with cryptography

Task 1: Intro

I understand why cryptography is important!

No answer needed

Task 2: Types of cryptography

What type of cryptography is more secure?

Symmetric cryptography is faster than asymmetric, but asymmetric is more secure.

Asymmetric

What type of cryptography is faster?

Symmetric

What type of cryptography will a Bank site use?

Asymmetric

What will you use to encrypt your messages in asymmetric cryptography?

public key

What will you use to decrypt messages in asymmetric cryptography?

private key

Does symmetric cryptography use two different keys for encryption/decryption? (aye/nay)

Asymmetric cryptography use two different keys for encryption/decryption.

nay

Task 3: What is a hash?

I understand what are hashes!

No answer needed

What’s the MD5 hash of “hashes are cool”?

Using MD5 Hash Generator Online Tool, we can generate MD5 hash of any text.

f762d32e3c160900d94b683e927555b9

What does MD5 stand for?

Message Digest 5

Who created MD5?

Ronald Rivest

Task 4: Decoding/encoding

Encode the string “cryptographyisuseful” with Base64

Using Base64 Encode Online Tool, we can encode a string to Base64.

Y3J5cHRvZ3JhcGh5aXN1c2VmdWw=

Decode the string “dGhlIHNlY3JldCB3b3JkIGlzIDogd2F0ZXJtZWxvbg==”. What’s the secret word?

Using Base64 Decode Online Tool, we can decode Base64 to a string. We found the string “the secret word is : watermelon”.

watermelon

Task 5: Thanks for reading!

Thanks for reading!

No answer needed