Re: AES_XCBC?
Paul Wouters <[email protected]>
| Newsgroups | gmane.comp.mozilla.crypto |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 6 Dec 2017, f masood via dev-tech-crypto wrote: > On Wednesday, December 6, 2017 at 7:51:13 PM UTC+5, Andrew Cagney wrote: >> I'm looking at implementing AES_XCBC using NSS. That is: >> >> AES-XCBC-MAC-96: https://tools.ietf.org/html/rfc3566#section-4 >> AES-XCBC-MAC-PRF: https://tools.ietf.org/html/rfc4434 >> >> (the latter adds a recursive rule for building a fixed size key from a >> variable key) >> >> reading NSS's "documentation", I've turned up AES_MAC, but I'm >> guessing that that is just implementing the primitive >> https://en.wikipedia.org/wiki/CBC-MAC using AES. >> >> Is there anything else, or will I be needing to implement things by >> wrapping this primitive? (and if so, was there a test I could look at >> for the existing code?) >> >> Andrew > > What version of NSS are you targeting ? Libreswan can handle something not being available in some versions of NSS. If it is not supported, we'd like the support to be added to a new version of NSS. > I dont think that currently NSS has support of this XCBC, so you'll have to do changes and then compile ? It's fine for libreswan to not support it if support is missing in NSS. > Whats your scenario? I mean are you going to use this cihersuite for ipsec application ? It will be used as IKE algorithm. IPsec (ESP) crypto is handled by the kernel. Paul -- dev-tech-crypto mailing list [email protected] https://lists.mozilla.org/listinfo/dev-tech-crypto