题目

2023-08-25 02:50:51 +08:00
parent ee9208c450
commit 608c8d36f5
1 changed files with 18 additions and 0 deletions
--- a/crypto/easy_rsa/easy_rsa.py
+++ b/crypto/easy_rsa/easy_rsa.py
@@ -0,0 +1,18 @@
+from Crypto.Util.number import *
+import os
+
+flag = os.getenv("FLAG")
+flag = b"flag{wow}"
+flag = str2long(flag)
+p = getPrime(64)
+q = getPrime(64)
+n = p * q
+e = 65537
+print(n)
+phi = (p - 1) * (q - 1)
+d = inverse(e, phi)
+cipher = pow(flag, e, n)
+print(cipher)
+flag = pow(cipher, d, n)
+flag = long_to_bytes(flag)
+print(flag)