add dlp script

dlp.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+
+from Cryptotools.Numbers.primeNumber import isPrimeNumber
+from Cryptotools.Groups.cyclic import Cyclic
+from math import log, ceil
+
+def ope(a, b, n):
+    return (a ** b) % n
+
+n = 7919
+group = list()
+for x in range(1, n):
+    group.append(x)
+
+cyclic = Cyclic(group, n, ope)
+g = cyclic.getPrimitiveRoot()
+
+print(f"g: {g}")
+
+#secretKey = 3257
+#secretKey = 134
+secretKey = 4057
+
+publicKey = ope(g, secretKey, n)
+print(f"Public key: {publicKey}")
+
+
+# Now, we need to find the secret key based on the DLP
+for x in range(1, n):
+    l = log(x, g)
+    h = ceil(g ** l)
+    if ope(g, h, n) == publicKey:
+        print(f"Secret key found: {h}")
+        break