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CTF Challenges
Solve puzzles, capture flags, earn points.
0
Points
Base64 Decode
Easy
10 ptsDecode this Base64 string to find the flag.
ZmxhZ3t3ZWxjb21lX3RvX2N5YmVyY2hhbGxlbmdlfQ==
Caesar Cipher
Easy
15 ptsThis message was encrypted with a Caesar cipher (shift 7). Decrypt it.
Lzahuk pz av mwpuk ovd av zva clhy!
Hex Decode
Easy
10 ptsConvert this hex string to ASCII text.
666c61677b6833785f346e645f737472316e67737d
Binary Decode
Medium
20 ptsThis binary string spells out a message. Decode it.
01000110 01001100 01000001 01000111 01111011 01100010 00110001 01101110 00110100 01110010 01111001 01011111 01101101 00110011 01101101 00110011 01110011 01111101
Morse Code
Medium
25 ptsDecode this Morse code message.
..-. .-.. .- --. .--. .... .. ... .... .. -. --. .. ... ..-. ..- -.
Rot13
Hard
30 ptsThis uses ROT13 (same as Caesar shift 13). But there's a twist — the flag is hidden in reverse order too.
synt{ebg13_vf_rnfl}