DER incompatibility ?

[Kostya Kortchinsky]

Hi,

Trying to convert a DER-encoded SignedData object (signedData.encode to 
a FileOutputStream) with openssl leads to the following :

openssl pkcs7 -inform DER -in TEST.der -text

unable to load PKCS7 object
12531:error:0D081072:asn1 encoding routines:d2i_ASN1_OBJECT:expecting an 
object:a_object.c:217:12531:error:0D091004:asn1 encoding 
routines:d2i_PKCS7:nested asn1 error:p7_lib.c:259:address=135557600 offset=4

Has anybody yet encountered this kind of error in that context (probably 
something I am doing wrong, but I can't get what) ?

Thanks in advance,

Kostya