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docker compose bugfix

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This commit is contained in:
rafliher
2025-10-25 14:18:49 +07:00
parent 6ea6f54150
commit 41a170543b
15 changed files with 375 additions and 313 deletions
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services/phew/Dockerfile
+8 -7
View File
@@ -2,8 +2,8 @@ FROM python:3.12-slim
ARG PASSWORD=root
ENV DEBIAN_FRONTEND=noninteractive
ENV HOME=/home/ctf
WORKDIR /home/ctf/chall
ENV HOME=/home/ctfuser
WORKDIR /home/ctfuser/chall
RUN apt-get update && apt-get install -y --no-install-recommends \
openssh-server \
@@ -11,22 +11,23 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
libffi-dev \
libssl-dev \
python3-dev \
socat \
bash \
&& rm -rf /var/lib/apt/lists/*
RUN useradd -m -d /home/ctf -s /bin/bash ctf && \
echo "ctf:${PASSWORD}" | chpasswd
RUN useradd -m -d /home/ctfuser -s /bin/bash ctfuser && \
echo "ctfuser:${PASSWORD}" | chpasswd
RUN mkdir -p /var/run/sshd
COPY requirements.txt /tmp/requirements.txt
RUN pip install --no-cache-dir -r /tmp/requirements.txt
COPY ./src /home/ctf/chall/src
COPY ./src /home/ctfuser/chall/src
COPY ./start.sh /start.sh
RUN chmod +x /start.sh /home/ctf/chall/src/run.sh
RUN chmod +x /start.sh /home/ctfuser/chall/src/run.sh
RUN chown -R root:root /home/ctf/chall && chmod -R 555 /home/ctf/chall
RUN chown -R root:root /home/ctfuser/chall && chmod -R 555 /home/ctfuser/chall
EXPOSE 8000 22
CMD ["/start.sh"]
services/phew/Pailier.py → services/phew/src/Pailier.py
+47 -47
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@@ -1,47 +1,47 @@
from Crypto.Util.number import *
from math import lcm
import random
class pailier:
def __init__(self):
self.primes = [getPrime(512) for _ in range(2)]
self.n = 1
self.phi = 1
self.mul = 1
for i in range(2):
self.n *= self.primes[i]
self.phi *= (self.primes[i] - 1)
self.n2 = self.n * self.n
self.g = [pow(random.randrange(1, self.n2), self.primes[i], self.n2) for i in range(2)]
for x in self.g:
self.mul = (self.mul * x) % self.n2
self.miu = inverse(self.L(pow(self.mul, self.phi, self.n2)), self.n)
self.alpha = [None, None]
for idx in range(2):
while True:
a = random.randrange(2, self.n - 1)
if GCD(a, self.n) == 1:
self.alpha[idx] = a
break
self.beta = [random.randrange(0, self.n), random.randrange(0, self.n)]
def L(self, val):
return (val - 1) // self.n
def pubkey(self):
return (self.n, self.g)
def encrypt(self, msg: int) -> int:
r = random.randrange(0, self.n - 1)
gb = self.g[random.randrange(0, 2)]
gm = pow(gb, msg, self.n2)
rn = pow(r, self.n, self.n2)
return (gm * rn) % self.n2
def decrypt(self, ct: int) -> int:
raw = self.L(pow(ct, self.phi, self.n2)) % self.n
raw = (raw * self.miu) % self.n
t = pow(ct % self.n, (self.n - 1) // 2, self.n) if (self.n % 2 == 1) else 0
idx = 0 if t == 1 else 1
return (self.alpha[idx] * raw + self.beta[idx]) % self.n
from Crypto.Util.number import *
from math import lcm
import random
class pailier:
def __init__(self):
self.primes = [getPrime(512) for _ in range(2)]
self.n = 1
self.phi = 1
self.mul = 1
for i in range(2):
self.n *= self.primes[i]
self.phi *= (self.primes[i] - 1)
self.n2 = self.n * self.n
self.g = [pow(random.randrange(1, self.n2), self.primes[i], self.n2) for i in range(2)]
for x in self.g:
self.mul = (self.mul * x) % self.n2
self.miu = inverse(self.L(pow(self.mul, self.phi, self.n2)), self.n)
self.alpha = [None, None]
for idx in range(2):
while True:
a = random.randrange(2, self.n - 1)
if GCD(a, self.n) == 1:
self.alpha[idx] = a
break
self.beta = [random.randrange(0, self.n), random.randrange(0, self.n)]
def L(self, val):
return (val - 1) // self.n
def pubkey(self):
return (self.n, self.g)
def encrypt(self, msg: int) -> int:
r = random.randrange(0, self.n - 1)
gb = self.g[random.randrange(0, 2)]
gm = pow(gb, msg, self.n2)
rn = pow(r, self.n, self.n2)
return (gm * rn) % self.n2
def decrypt(self, ct: int) -> int:
raw = self.L(pow(ct, self.phi, self.n2)) % self.n
raw = (raw * self.miu) % self.n
t = pow(ct % self.n, (self.n - 1) // 2, self.n) if (self.n % 2 == 1) else 0
idx = 0 if t == 1 else 1
return (self.alpha[idx] * raw + self.beta[idx]) % self.n
services/phew/chall.py → services/phew/src/chall.py
+29 -29
View File
@@ -1,29 +1,29 @@
#!/usr/bin/env python3
from Pailier import *
from Crypto.Util.number import *
with open("/flag.txt", "rb") as f:
flag = f.read()
flag = bytes_to_long(flag)
cipher = pailier()
while True:
print("1. encrypt")
print("2. bingo")
print("3. decrypt")
print("4. exit")
inp = int(input("> "))
if inp==1:
print("pt (hex)")
inp = input("> ")
ct = cipher.encrypt(int(inp,16))
print('ct : ','{0:x}'.format(ct))
elif inp==2:
ct = cipher.encrypt(flag)
print('ct : ','{0:x}'.format(ct))
elif inp==3:
print("ct (hex)")
inp = input("> ")
pt = cipher.decrypt(int(inp,16))
print('pt : ','{0:x}'.format(pt))
else:
exit()
#!/usr/bin/env python3
from Pailier import *
from Crypto.Util.number import *
with open("/flag.txt", "rb") as f:
flag = f.read()
flag = bytes_to_long(flag)
cipher = pailier()
while True:
print("1. encrypt")
print("2. bingo")
print("3. decrypt")
print("4. exit")
inp = int(input("> "))
if inp==1:
print("pt (hex)")
inp = input("> ")
ct = cipher.encrypt(int(inp,16))
print('ct : ','{0:x}'.format(ct))
elif inp==2:
ct = cipher.encrypt(flag)
print('ct : ','{0:x}'.format(ct))
elif inp==3:
print("ct (hex)")
inp = input("> ")
pt = cipher.decrypt(int(inp,16))
print('pt : ','{0:x}'.format(pt))
else:
exit()
services/phew/run.sh → services/phew/src/run.sh
View File
services/phew/start.sh
+2 -2
View File
@@ -12,7 +12,7 @@ grep -q "^PasswordAuthentication" /etc/ssh/sshd_config && \
sed -i "s/^PasswordAuthentication.*/PasswordAuthentication yes/" /etc/ssh/sshd_config || \
echo "PasswordAuthentication yes" >> /etc/ssh/sshd_config
echo "AllowUsers ctf" >> /etc/ssh/sshd_config
echo "AllowUsers ctfuser" >> /etc/ssh/sshd_config
/usr/sbin/sshd
@@ -22,4 +22,4 @@ if [ -n "$FLAG" ]; then
chown root:root /flag.txt
fi
exec su -c "cd /home/ctf/chall/src && ./run.sh" -s /bin/bash ctf
exec su -c "cd /home/ctfuser/chall/src && ./run.sh" -s /bin/bash ctfuser