Error inspecting PKCS#7 DER

[Giacomo Boccardo]

When I try to inspect the file in the attachment (PKCS#7, DER format) I have the following error:

$ openssl pkcs7 -inform DER -in cadesBES_singleCounterSignatureWithDate.p7m
unable to load PKCS7 object






Thanks,
   Giacomo Boccardo.

2491:error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag:tasn_dec.c:1316: 2491:error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error:tasn_dec.c:380:Type=PKCS7_ISSUER_AND_SERIAL 2491:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:748:Field=issuer_and_serial, Type=PKCS7_SIGNER_INFO 2491:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:709:Field=signer_info, Type=PKCS7_SIGNED 2491:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:748: 2491:error:0D08403A:asn1 encoding routines:ASN1_TEMPLATE_EX_D2I:nested asn1 error:tasn_dec.c:578:Field=d.sign, Type=PKCS7 Is it possible that it's trying to look for an IssuerAndSerialNumber structure, even if I'm using a SubjectKeyIdentifier one?

cadesBES_singleCounterSignatureWithDate.p7m
Description: Binary data