Added security warning

1 files changed, 6 insertions, 0 deletions

diff --git a/rsa/__init__.py b/rsa/__init__.py
index 77db33e..701cf23 100644
--- a/rsa/__init__.py
+++ b/rsa/__init__.py
@@ -3,6 +3,12 @@ pri = k[1]                               	//Private part of keys d,p,q
 
 Module for calculating large primes, and RSA encryption, decryption,
 signing and verification. Includes generating public and private keys.
+
+WARNING: this code implements the mathematics of RSA. It is not suitable for
+real-world secure cryptography purposes. It has not been reviewed by a security
+expert. It does not include padding of data. There are many ways in which the
+output of this module, when used without any modification, can be sucessfully
+attacked.
 """
 
 __author__ = "Sybren Stuvel, Marloes de Boer and Ivo Tamboer"