The following statement was received from Entrust on October 15, 1998: From: Carlisle Adams Subject: CAST-128 Statement for IETF IPR Page... Date: Thu, 15 Oct 1998 15:18:01 -0400 The CAST-128 encryption algorithm, as specified in RFC 2144, is available worldwide on a royalty-free basis for commercial and non-commercial uses. Entrust Technologies imposes no terms or conditions on the use of this algorithm.