Updated for challenge 9

[cipher-tools.git] / cipher / hill.py

diff --git a/cipher/hill.py b/cipher/hill.py
index 24bac7f986f3346f028e516bd69832a45ba015a8..8233de721231b5b4b2d1c2b3bafff982f48756e6 100644 (file)
--- a/cipher/hill.py
+++ b/cipher/hill.py
@@ -42,7 +42,7 @@ def hill_decipher(matrix, message, fillvalue='a'):
     'hellothereaa'
     """
     adjoint = linalg.det(matrix)*linalg.inv(matrix)
-    inverse_determinant = modular_division_table[int(round(linalg.det(matrix))) % 26][1]
+    inverse_determinant = modular_division_table[int(round(linalg.det(matrix))) % 26, 1]
     inverse_matrix = (inverse_determinant * adjoint) % 26
     return hill_encipher(inverse_matrix, message, fillvalue)