sra

sra/chal.py

@@ -0,0 +1,25 @@
+from Crypto.Util.number import getPrime, inverse, bytes_to_long
+from string import ascii_letters, digits
+from random import choice
+
+pride = "".join(choice(ascii_letters + digits) for _ in range(16))
+gluttony = getPrime(128)
+greed = getPrime(128)
+lust = gluttony * greed
+sloth = 65537
+envy = inverse(sloth, (gluttony - 1) * (greed - 1))
+
+anger = pow(bytes_to_long(pride.encode()), sloth, lust)
+
+print(f"{anger = }")
+print(f"{envy = }")
+
+print("vainglory?")
+vainglory = input("> ").strip()
+
+if vainglory == pride:
+    print("Conquered!")
+    with open("/challenge/flag.txt") as f:
+        print(f.read())
+else:
+    print("Hubris!")