Saturday 15 September 2018

CTFlearn - HYPERSTREAM TEST #2




https://beta.ctflearn.com/problems/443
Cryptography
leg3ndaryphil


Tips: Bacon is a kind of encoding method

Useful link:

CTFlearn - HEXTROADINARY



https://beta.ctflearn.com/problems/158
Cryptography
crypto


Tips: The coder name "ROXy" focus on her name

useful link:
http://xor.pw/#

Remember to include 0x at your answer

Monday 3 September 2018

CTFlearn - C_E_ER



https://beta.ctflearn.com/problems/304
Cryptography
yakatoi


Tips: C_E_ER means Caesar Cipher 

where key is 13


Useful link

Sunday 2 September 2018

CTFlearn - BASE 2 2 THE 6



https://beta.ctflearn.com/problems/192
Cryptography
pedro

Tips: Base 64 Encoded

Useful link:

CTFlearn - REVERSE POLARITY



https://beta.ctflearn.com/problems/230
Cryptography
aglickman

Tips: Binary Encoded


Useful link:

CTFlearn - CHARACTER ENCODING



https://beta.ctflearn.com/problems/115
Cryptography
dknj11902

Tips: Hexadecimal Encode

Useful link:


Saturday 1 September 2018

CTFlearn - SO MANY 64S



https://beta.ctflearn.com/problems/121
Cryptography
voidmercy


Sample Code:
import base64

with open("flag.txt",encoding = 'utf-8') as f:

ctext=f.read()

while True:
  try:
    ctext=base64.b64decode(ctext)
  except Exception as e:
    print(ctext)
    break





CTFlearn - ENCRYPTION MASTER



https://beta.ctflearn.com/problems/243
Cryptography
skywalkrs


Tips, try the following decode sequence:

1) Base64 
2) Hexadecimal
3) Binary
4) Base64

I_AM_PROUD_OF_YOU


Useful link:
https://www.asciitohex.com/

Calvin Work A) My Study Plan B) My CTF Record C) My Python Code-  github    1) Crypto    2) Crunch in python (generate d...