pub unsafe extern "C" fn nettle_rsa_pkcs1_sign(
key: *const rsa_private_key,
length: usize,
digest_info: *const u8,
s: *mut __mpz_struct,
) -> c_int
pub unsafe extern "C" fn nettle_rsa_pkcs1_sign(
key: *const rsa_private_key,
length: usize,
digest_info: *const u8,
s: *mut __mpz_struct,
) -> c_int