[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [Fwd: [emergency] Questions on ASN.1 and IPAWS Profile / CAP 1.2]
Just catching up on email. I am not aware of any ASN.1 implementations. Further, from what I know of EM solutions and policies in Europe in Asia, there will not be any in the near future. And I suspect that the US NG 911 recommendations for standards will not include any ASN.1 words. XML or binary payloads. Regards Carl >> representation of CAP 1.1 was. That was why I said that this was the >> "first time I heard ASN.1 encoded CAP messages in >> relation to any US-specific implementation..." > > I too have not heard of any US specific implementation, but I've also not > heard of any European ones either :) Actually outside of the H.323 work > is anyone else aware of CAP ASN.1 implementations, it would be good to > know as a reference and to get their feedback on any problems and areas of > improvement. > > The original question I believe was regarding XML to ASN.1 translations > and the IPAWS Profile. While the IPAWS Profile doesn't have any explicit > references to ASN.1, it also doesn't contain anything specific to XML > only, and there should be nothing that prevents ASN.1 encodings of IPAWS > Profile messages. I have little experience with ASN.1 however and would > certainly be willing to work with anyone who has ASN.1 expertise to test > and prove this. > > Regarding XML to ASN.1 translations, while it should be possible, there is > a concern here. One of the major reasons for CAP 1.2 was correcting the > schema to include XML Digital Signatures/Encryption. However DSig's don't > translate over into ASN.1. So if you were translating from XML to ASN.1 > the DSig will be lost and some other, probably transport related, security > mechanisms would be needed. Translating back to XML from ASN.1 would be > even more problematic as you would have to resign the XML message for > DSig, and if you were to compare the original XML DSig to the translated > XML DSig they would not match. Again though, take my comments with a > grain of salt. I'd certainly like to see if there is someone with ASN.1 > expertise who would be willing to also test this out. > > -- > jake@jpw.biz > -- > > --------------------------------------------------------------------- > To unsubscribe from this mail list, you must leave the OASIS TC that > generates this mail. Follow this link to all your TCs in OASIS at: > https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php > >
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]