ctf_aria

write up ctf by ariafatah

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Project maintained by ariafatah0711 Hosted on GitHub Pages — Theme by mattgraham

soal

Know of little and big endian?
Source
Additional details will be available after launching your challenge instance.

launch istance

Know of little and big endian?
Source
nc titan.picoctf.net 54628

hint

• You might want to check the ASCII table to first find the hexadecimal representation of characters before finding the endianness.
• Read more about how endianness here

solve

wget https://artifacts.picoctf.net/c_titan/119/flag.c

nc titan.picoctf.net 54628
# Welcome to the Endian CTF!
# You need to find both the little endian and big endian representations of a word.
# If you get both correct, you will receive the flag.
# Word: kssra
Enter the Little Endian representation: 617273736B
# Correct Little Endian representation!
Enter the Big Endian representation: 6b73737261
# Correct Big Endian representation!
# Congratulations! You found both endian representations correctly!
# Your Flag is: picoCTF{3ndi4n_sw4p_su33ess_28329f0a}

for i in "kssra":
    print(hex(ord(i)))
# 0x6b
# 0x73
# 0x73
# 0x72
# 0x61

for i in "kssra":
    print(hex(ord(i)).lstrip("0x"))
# 6b
# 73
# 73
# 72
# 61

for i in "kssra":
    print(hex(ord(i)).lstrip("0x"), end="")
# 6b73737261

## convert hex decimal menjadi little endian
## https://www.save-editor.com/tools/wse_hex.html
## atau sebenernya kita bisa balik teksnya

# BIG ENDIAN => LITTLE ENNDIAN
# 6b73737261 => 617273736B
# 6b 73 73 72 61 => 61 72 73 73 6b

flag

picoCTF{3ndi4n_sw4p_su33ess_28329f0a}