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Maxime Vorwerk
2024-06-21 16:40:52 +02:00
parent bab4006b61
commit 560144c8cc
5 changed files with 44 additions and 0 deletions
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1
easy_1/enc_flag Normal file
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UFJKXQZQUNB

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easy_1/key Normal file
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SOLVECRYPTO

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easy_1/sol.py Executable file
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#!/home/maxime/.pyvenv/bin/python3
with open("table.txt", 'r') as f, open("key", 'r') as g, open("enc_flag", 'r') as h:
lines = f.readlines()
key = g.read().strip()
enc_flag = h.read().strip()
flag = "picoCTF{"
assert len(enc_flag) == len(key)
for p, q in zip(enc_flag, key):
flag += chr((ord(p) - ord(q)) % 26 + ord('A'))
flag += '}'
print(flag)

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easy_1/table.txt Executable file
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
+----------------------------------------------------
A | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
B | B C D E F G H I J K L M N O P Q R S T U V W X Y Z A
C | C D E F G H I J K L M N O P Q R S T U V W X Y Z A B
D | D E F G H I J K L M N O P Q R S T U V W X Y Z A B C
E | E F G H I J K L M N O P Q R S T U V W X Y Z A B C D
F | F G H I J K L M N O P Q R S T U V W X Y Z A B C D E
G | G H I J K L M N O P Q R S T U V W X Y Z A B C D E F
H | H I J K L M N O P Q R S T U V W X Y Z A B C D E F G
I | I J K L M N O P Q R S T U V W X Y Z A B C D E F G H
J | J K L M N O P Q R S T U V W X Y Z A B C D E F G H I
K | K L M N O P Q R S T U V W X Y Z A B C D E F G H I J
L | L M N O P Q R S T U V W X Y Z A B C D E F G H I J K
M | M N O P Q R S T U V W X Y Z A B C D E F G H I J K L
N | N O P Q R S T U V W X Y Z A B C D E F G H I J K L M
O | O P Q R S T U V W X Y Z A B C D E F G H I J K L M N
P | P Q R S T U V W X Y Z A B C D E F G H I J K L M N O
Q | Q R S T U V W X Y Z A B C D E F G H I J K L M N O P
R | R S T U V W X Y Z A B C D E F G H I J K L M N O P Q
S | S T U V W X Y Z A B C D E F G H I J K L M N O P Q R
T | T U V W X Y Z A B C D E F G H I J K L M N O P Q R S
U | U V W X Y Z A B C D E F G H I J K L M N O P Q R S T
V | V W X Y Z A B C D E F G H I J K L M N O P Q R S T U
W | W X Y Z A B C D E F G H I J K L M N O P Q R S T U V
X | X Y Z A B C D E F G H I J K L M N O P Q R S T U V W
Y | Y Z A B C D E F G H I J K L M N O P Q R S T U V W X
Z | Z A B C D E F G H I J K L M N O P Q R S T U V W X Y