Function dsa_encrypt_key 

pub unsafe extern "C" fn dsa_encrypt_key(
    in_: *const c_uchar,
    inlen: c_ulong,
    out: *mut c_uchar,
    outlen: *mut c_ulong,
    prng: *mut prng_state,
    wprng: c_int,
    hash: c_int,
    key: *mut dsa_key,
) -> c_int