CHALLENGE INFORMATION
Platform: TryHackMe
Path: Complete Beginner
Module: Cryptography
Room: Hashing - Crypto 101
Description: An introduction to Hashing, as part of a series on crypto.
Key Terms
Question 1: Read the words, and understand the meanings! Is base64 encryption or encoding?
encoding
What is a hash function?
Question 1: What is the output size in bytes of the MD5 hash function?
16
Question 2: Can you avoid hash collisions? (Yea/Nay)
Nay
Question 3: If you have an 8 bit hash output, how many possible hashes are there?
256
Uses for hashing
Question 1: Crack the hash d0199f51d2728db6011945145a1b607a using the rainbow table manually.
basketball
Question 2: Crack the hash 5b31f93c09ad1d065c0491b764d04933 using online tools
tryhackme
Question 3: Should you encrypt passwords? Yea/Nay
Nay
Recognising password hashes
Question 1: How many rounds does sha512crypt ($6$) use by default?
5000
Question 2: What’s the hashcat example hash (from the website) for Citrix Netscaler hashes?
1765058016a22f1b4e076dccd1c3df4e8e5c0839ccded98ea
Question 3: How long is a Windows NTLM hash, in characters?
32
Password Cracking
Question 1: Crack this hash: $2a$06$7yoU3Ng8dHTXphAg913cyO6Bjs3K5lBnwq5FJyA6d01pMSrddr1ZG.
85208520
Question 2: Crack this hash: 9eb7ee7f551d2f0ac684981bd1f1e2fa4a37590199636753efe614d4db30e8e1.
halloween
Question 3: Crack this hash: $6$GQXVvW4EuM$ehD6jWiMsfNorxy5SINsgdlxmAEl3.yif0/c3NqzGLa0P.S7KRDYjycw5bnYkF5ZtB8wQy8KnskuWQS3Yr1wQ0.
spaceman
Question 4: Bored of this yet? Crack this hash: b6b0d451bbf6fed658659a9e7e5598fe.
funforyou
Hashing for integrity checking
Question 1: What’s the SHA1 sum for the amd64 Kali 2019.4 ISO?
186c5227e24ceb60deb711f1bdc34ad9f4718ff9
Question 2: What’s the hashcat mode number for HMAC-SHA512 (key = $pass)?
1750