symm/rc4.h: Mention that RC4 isn't really very good.

diff --git a/symm/rc4.h b/symm/rc4.h
index d707a29ec149b35f58dae0767ffb46e8e94010d3..1e34c508df55b4a72cb544d9130c20195335c9bc 100644 (file)
--- a/symm/rc4.h
+++ b/symm/rc4.h
@@ -31,6 +31,9 @@
  * trade secret of RSA Data Security, Inc., but somehow source code for a
  * cipher which interworks with RC4 was posted to the Cypherpunks mailing
  * list.
+ *
+ * RC4 has some quite bad biases, and its use for cryptographic purposes is
+ * no longer recommended.
  */
 
 #ifndef CATACOMB_RC4_H