X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/a620b15ed4a1cfe5f76e42240e7f2bfbb77173e7..6a024d24d97cb5d42c0091571735475b849f59f4:/symm/rc4.h

diff --git a/symm/rc4.h b/symm/rc4.h
index d707a29e..1e34c508 100644
--- 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