tag values in decode_PA_PK_AS_REQ_Win2k()

[Olga Kornievskaia <aglo@citi.umich.edu>]

I have a question about the tag values used by 
decode_PA_PK_AS_REQ_Win2k() (also the encode routine).

win2k (draft9) pkinit draft uses the following tags:
signedAuthPack [0]
trustedCertifiers [1]
kdcCert [2]
encryptionCert [3]

However, the code uses values:
signedAuthPack [0]
trustedCertifiers[2]
kdcCert[3]
encryptionCert[4]

It seems that tag values were shifted by 1.