pub unsafe extern "C" fn ASN1_item_sign(
it: *const ASN1_ITEM_st,
algor1: *mut X509_algor_st,
algor2: *mut X509_algor_st,
signature: *mut asn1_string_st,
data: *const c_void,
pkey: *mut evp_pkey_st,
md: *const evp_md_st,
) -> i32