[Jsdsi-users] Re: Identification in signature s-exp

[Sameer A. <aj...@gm...>]

According to the grammar in http://theworld.com/~cme/spki.txt, that
field is the <pub-sig-alg-id> (signature algorithm identifier).  It's
odd that it is base64-encoded in your example; this is probably
because your algorithm name contains characters that are not
considered SPKI token characters (such as '/').

Sameer

On Tue, 29 Jun 2004 22:01:47 +0530 (IST), Sudhanshu
<sud...@ec...> wrote:
> 
> 
> The two signatures shown below were signed by different public keys
> but this parameter (as pointed out ) in both of them remains the same,
> - as given by the java interface for sdsi.
> Could you tell me what does this parameters stand for .
> 
> (signature
>   (hash md5 |82Ped/N2E6e1EEymDz85+A==|)
>   (public-key
>     (rsa-pkcs1-md5
>       (e #010001#)
>       (n
>         |ALksH8+TZhac+r6O4avdCje8JISHNX4dOQESwxD+v7fX7OaNNu1nPAtkXpUhWS0
>         JBGonGqfg7sNosa4/h/I/sNOZfqxggktIN+nC6faM1zqU1k76P1/4CQx76kYNiht
>         vz2dK79GC6RFMi/HhwZzIqjGqlXHmacxsQgLu2oOjZlr5|)))
> ==>  (|TUQ1L1JTQS9QS0NTIzE=|
>     |SG6zQ2EXKJsHpPQsicx9Djkv6e4rImgdO55O1QoX8vN51qCsMOtw4M22HQlIgD8VKG2
>     sQLAj0BVRMcFTsSPi77f8yVuz9GrpmLqwN65M2rN8DlWmPMwcCIcKHb2lrTLpxNPXboJ
>     PgFg1XUGGPnj0Z18RfkjLRwGwrY70ZddAxCE=|))
> 
> (signature
>   (hash md5 |65x3g1fH6v9opEMqXC+LOA==|)
>   (public-key
>     (rsa-pkcs1-md5
>       (e #010001#)
>       (n
>         |AOqFMTA5dbJ48Cscmert0dPQa2te1i8S+2dbgS47SuHH/U2DsnoYE4OlScGzAZx
>         s0Kta8ROeGuLnlRY1naPe9rmUztsK9TDCnT+ooLDVv9YQy6gRfEchfDzyKqcegnW
>         iPdBRH1W6Huia477i3AzHqzTnk18aSZeRf6h73b1abhhb|)))
> ==>  (|TUQ1L1JTQS9QS0NTIzE=|
>     |YhoeMF8ogGe7sZ2m4XisPAuoxMXT25t70gLXgF6OsA4959pJ51pRA8wjtJ0EP3J5OVz
>     0sDhgTIGQZF8ZiuQ429OQAYmrJp0BK0+9YL/awCsgPIb9kQG9OdQBTXvc4OYoDMSfkMo
>     BVDjxnkQKRrA+QcinXusPxKns7cKf6c/bGlA=|))
> 
> Also, could you tell me if there is any standard being followed for the
> current rules of sdsi, ie. the structure of the certs, signatures,etc.
> for eg. as the definition of a standard has been attempted in the
> draft-ietf-spki-cert-structure-06.txt.
> 
> link for the draft is http://theworld.com/~cme/spki.txt
> 
> Thanx,
> sudhanshu
> 
>