Problem :
Solusi :
def decrypt(text):
value = 13
clearText = ""
for c in text:
cipherChar = rot(c, value)
value = (value - 3 ) % 26
clearText += cipherChar
print reverse(clearText)
abdilahrf:~/workspace/CTF/gemastik $ python classic.py
=== Gemastik - Classic Crypto ===
Insert your text :
}h3dokh_yfvxlm_zdaqs_lselv_k_aqqkmm_iyepli_oxknymg_unukx_qy_yfryi{NOCEPEZE
GEMASTIK{learn_to_break_classic_cipher_before_u_learn_about_modern_ciph3r}
Encrypted text :
