Function nettle_sys::nettle_ecdsa_sign

pub unsafe extern "C" fn nettle_ecdsa_sign(
    key: *const ecc_scalar, 
    random_ctx: *mut c_void, 
    random: nettle_random_func, 
    digest_length: usize, 
    digest: *const u8, 
    signature: *mut dsa_signature
)