Obfuscation CTF

SCOREBOARD

Old scores from 2018

Textbook


0 Welcome (1)

Enter this greeting into the form below.
HELLO
Your Name:
Greeting:

1 Hidden (5)

Find the hidden word:
AIGHRO
CGEHKI
HKDIST
RACTIO
NVBFWO
KEGGBG
Use the form below to record your success.
Your Name:
Plaintext:

2 Reverse (5)

Find the cleartext from this ciphertext:
RAER EHT OT GNICNAVDA
Use the form below to record your success.
Your Name:
Plaintext:

3 Off the Rails (10)

Find the cleartext from this ciphertext:
LDEIEACNN
Use the form below to record your success.

HINT

Your Name:
Plaintext:

4 Columnar (10)

Find the cleartext from this ciphertext:
DCNSG OOSTE RLARS IUROT CMENQ
Use the form below to record your success.

HINT

Your Name:
Plaintext:

5 ROT13 (10)

Find the cleartext from this ciphertext:
GBBFVZCYR
Use the form below to record your success.

HINT

Your Name:
Plaintext:

6 Caesar (10)

Find the cleartext from this ciphertext:
BHBJO XJUI UIF DBFTBS
Use the form below to record your success.

HINT 1

HINT 2

Your Name:
Plaintext:

7 Decimal Encoding (10)

Find the cleartext from this ciphertext:
66 65 83 69 32 49 48
Use the form below to record your success.

HINT

Your Name:
Plaintext:

8 Hexadecimal Encoding (10)

Find the cleartext from this ciphertext:
42 49 4E 41 52 59
Use the form below to record your success.

HINT

Your Name:
Plaintext:

9 Binary Encoding (10)

Find the cleartext from this ciphertext:
111000 100000 1000010 1001001 1010100 1010011
Use the form below to record your success.

HINT

Your Name:
Plaintext:

10 Binary (20)

Find the cleartext from this ciphertext:
bEpoliTebEprOfeSsIoNaLbutHavEAplaNtOkIlLeVeRyBOdyYoUmeEt
Use the form below to record your success.

HINT

Your Name:
Plaintext:

11 XOR (10)

The code below encrypts the message "HELLO" with a key of "u":

Challenge

Encrypt "TOPSECRET" with a key of "n".

Use the form below to record your success.

Your Name:
Ciphertext:

12 XOR (10)

The code below decrypts the message "=099:" with a key of "u":

Challenge

Decrypt this message:
3%?J,%?$.J#>
With a key of "j".

Use the form below to record your success.

Your Name:
Plaintext:


Posted 10-25-18
Old scores added 1-1-19