kwilliam@secola.Columbia.NCR.COM (Karen Williams) (01/14/89)
I think that topic has been discussed here before, but . . . Do the TCP/IP standards allow for encryption of data? In other words, can a data capture/analyzer see everything, or is there some level of security provided for? Thanks for the info! Karen Williams NCR, SE - Columbia kwilliam@secola.Columbia.NCR.COM
smb@ulysses.homer.nj.att.com (Steven M. Bellovin) (01/15/89)
In article <207@secola.Columbia.NCR.COM>, kwilliam@secola.Columbia.NCR.COM (Karen Williams) writes: > > Do the TCP/IP standards allow for encryption of data? There are no encryption provisions in the standard protocol suite at the IP or TCP level. It's possible to encrypt at the link level (i.e., the Blacker Front End), and of course at the application level. See RFC 1040 for some movement in that direction.
CERF@A.ISI.EDU (01/16/89)
Karen, The TCP/IP standards allow for encryption at several levels. At applications level (e.g. secure mail) and at any level above IP. The gateways have to see the IP headers in the clear to provide routing and type of service handling. TCP/IP nets are also operated regularly with link encryption. Vint Cerf
jallen@uxrd14.UUCP (Jon Allen) (01/24/89)
In article <207@secola.Columbia.NCR.COM> kwilliam@secola.Columbia.NCR.COM (Karen Williams) writes: >Do the TCP/IP standards allow for encryption of data? In other >words, can a data capture/analyzer see everything, or is there The commercial versions that I have worked with do not do any encryptiong. A LAN analyzer will see all (including passwords). I work primarily with the Wollongong and AT&T versions of TCP/IP. Jon Allen att!acpy01!jallen