@c gnutls_pkcs7_sign_flags
@table @code
@item GNUTLS_@-PKCS7_@-EMBED_@-DATA
The signed data will be embedded in the structure.
@item GNUTLS_@-PKCS7_@-INCLUDE_@-TIME
The signing time will be included in the structure.
@item GNUTLS_@-PKCS7_@-INCLUDE_@-CERT
The signer's certificate will be included in the cert list.
@item GNUTLS_@-PKCS7_@-WRITE_@-SPKI
Use the signer's key identifier instead of name.
@end table