fn from(spending_key: SpendingKey) -> PayingKey {
        let derived_bytes = prf_addr(spending_key.bytes, 1);

        PayingKey(derived_bytes)
    }
/// For this invocation of SHA256Compress as PRF^addr, t=1.
///
/// https://zips.z.cash/protocol/protocol.pdf#sproutkeycomponents
/// https://zips.z.cash/protocol/protocol.pdf#concreteprfs
For this invocation of SHA256Compress as PRF^addr, t=1.
For this invocation of SHA256Compress as PRF^addr t = 1 .
fn from(spending_key: SpendingKey) -> PayingKey {
        let derived_bytes = prf_addr(spending_key.bytes, 1);
        PayingKey(derived_bytes)
    }
fn from ( spending_key : SpendingKey ) -> PayingKey { let derived_bytes = prf_addr ( spending_key . bytes , 1 ) ; PayingKey ( derived_bytes ) }
For this invocation of SHA256Compress as PRF^addr, t=1.
For this invocation of SHA256Compress as PRF^addr t = 1 .
spending_key
SpendingKey