Hi,
I am trying to make pkcs7 encryption work
with capicom of Microsoft. I am
facing problem in it.
Steps I am
taking:
i)
I am
getting a DER encoded certificate from a MS client
ii)
I encrypt
the data on server with certificate using PHP function openssl_pkcs7_encrypt ()
whih I believe outputs the data in S/MIME format.
iii)
I
generate a PKCS7 structure with the command
Openssl smime -in (S/MIME data generated) -pk7out –out file.
I send this file to the MS client
which is trying to use capicom API to decrypt it. We are having decrypting
problems on the client side mostly getting the messages
like
i) ASN.1 bad tag
value
or
ii) ASN.1 unexpected end of
data
or
iii) Or key not
found.
We are not sure what the problem is.
If any one can point us in right direction, it will be
great.
Any help will be greatly
appreciated.
Regards
Rohit
