Re: authentication and ESP

2003-06-22 Thread Sandy Harris
John S. Denker wrote: On 06/19/2003 01:49 PM, martin f krafft wrote: > As far as I can tell, IPsec's ESP has the functionality of > authentication and integrity built in: It depends on what you mean by "built in". 1) The RFC provides for ESP+authentication but does not require ESP to use authent

Re: authentication and ESP

2003-06-22 Thread Perry E. Metzger
"John S. Denker" <[EMAIL PROTECTED]> writes: > On 06/19/2003 01:49 PM, martin f krafft wrote: > > As far as I can tell, IPsec's ESP has the functionality of > > authentication and integrity built in: > > It depends on what you mean by "built in". > 1) The RFC provides for ESP+authentication b

Re: authentication and ESP

2003-06-22 Thread John S. Denker
On 06/19/2003 01:49 PM, martin f krafft wrote: > As far as I can tell, IPsec's ESP has the functionality of > authentication and integrity built in: It depends on what you mean by "built in". 1) The RFC provides for ESP+authentication but does not require ESP to use authentication. 2) Although th

Re: authentication and ESP

2003-06-22 Thread Derek Atkins
you really don't want to open this can of worms I suggest you go read the archives of the IPsec mailing list over the last 9 years. That should give you some clue into the depth of the can you plan to open... -derek martin f krafft <[EMAIL PROTECTED]> writes: > As far as I can tell, IPsec'

Re: authentication and ESP

2003-06-20 Thread Steven M. Bellovin
In message <[EMAIL PROTECTED]>, martin f krafft writes : >As far as I can tell, IPsec's ESP has the functionality of >authentication and integrity built in: > >RFC 2406: > > 2.7 Authentication Data > > The Authentication Data is a variable-length field containing an > Integrity Check Value (

authentication and ESP

2003-06-19 Thread martin f krafft
As far as I can tell, IPsec's ESP has the functionality of authentication and integrity built in: RFC 2406: 2.7 Authentication Data The Authentication Data is a variable-length field containing an Integrity Check Value (ICV) computed over the ESP packet minus the Authentication Data.