triple-secure

triple_secure/encrypt.py

@@ -0,0 +1,29 @@
+#!python3
+
+from Crypto.Util.number import getPrime, bytes_to_long
+
+with open('flag.txt', 'rb') as f:
+    flag = f.read()
+
+p = getPrime(1024)
+q = getPrime(1024)
+r = getPrime(1024)
+
+n1 = p * q
+n2 = p * r
+n3 = q * r
+
+moduli = [n1, n2, n3]
+
+e = 65537
+c = bytes_to_long(flag)
+
+for n in moduli:
+    c = pow(c, e, n)
+
+with open('public-key.txt', 'w') as f:
+    f.write(f'n1: {n1}\n')
+    f.write(f'n2: {n2}\n')
+    f.write(f'n3: {n3}\n')
+    f.write(f'e: {e}\n')
+    f.write(f'c: {c}\n')