Verify non-NSS DSA signature

[David Stutzman]

We are trying to verify a DSA signature that was generated outside of 
NSS using NSS methods. It consists solely of the r+s elements put 
together.  It seems that an NSS signature is ASN.1 encoded so if we pass 
the bare signature in we are getting SEC_ERROR_BAD_DER (-8183).  I 
assume this is because it tries to decode the data we pass in but since 
it isn't encoded it gets an error.  Ultimately we'd like to be able to 
go both ways and export a signature that is compatible with the outside 
method (bare r+s) as well as importing.  Can you provide any insight on 
this?

Dave
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