CAST & RC5 Abstract correction

["William Allen Simpson" <wsimpson@greendragon.com>]

There are some substantive errors in language in both the CAST and RC5
drafts.  In the Abstracts:

>    This draft describes the CAST-128 block cipher algorithm as to be
>    used with the IPSec Encapsulating Security Payload (ESP).
>
>    This draft describes the RC5 block cipher algorithm as to be used
>    with the IPSec Encapsulating Security Payload (ESP).
>
This will not always be a draft.

"as to be used" is problematic phrasing.

There is no IPSec protocol.  ESP is called an IP protocol (IPv4) or
IP payload (IPv6).

I suggest:

   This document describes the <named> block cipher interface elements
   used with the IP Encapsulating Security Payload (ESP).

WSimpson@UMich.edu
    Key fingerprint =  17 40 5E 67 15 6F 31 26  DD 0D B9 9B 6A 15 2C 32
BSimpson@MorningStar.com
    Key fingerprint =  2E 07 23 03 C5 62 70 D3  59 B1 4F 5E 1D C2 C1 A2

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