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Separates raw encoding from jumbling of unified container contents.

This commit is contained in:
Kris Nuttycombe 2021-12-02 09:04:46 -07:00
parent a6e6f8ace2
commit 75591047f7
1 changed files with 11 additions and 6 deletions
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17
components/zcash_address/src/kind/unified.rs
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@ -147,11 +147,8 @@ pub(crate) mod private {
fn from_inner(receivers: Vec<Self::Receiver>) -> Self;
/// Returns the raw encoding of this Unified Address or viewing key.
fn to_bytes(&self, hrp: &str) -> Vec<u8> {
assert!(hrp.len() <= PADDING_LEN);
let mut writer = std::io::Cursor::new(Vec::new());
/// Write the raw encoding of this container's receivers to a stream
fn write_raw_encoding<W: Write>(&self, mut writer: W) {
for receiver in &self.receivers() {
let addr = receiver.data();
CompactSize::write(
@ -162,9 +159,17 @@ pub(crate) mod private {
CompactSize::write(&mut writer, addr.len()).unwrap();
writer.write_all(addr).unwrap();
}
}
/// Returns the jumbled padded raw encoding of this Unified Address or viewing key.
fn to_bytes(&self, hrp: &str) -> Vec<u8> {
assert!(hrp.len() <= PADDING_LEN);
let mut writer = std::io::Cursor::new(Vec::new());
self.write_raw_encoding(&mut writer);
let mut padding = [0u8; PADDING_LEN];
padding[0..hrp.len()].copy_from_slice(&hrp.as_bytes());
padding[0..hrp.len()].copy_from_slice(hrp.as_bytes());
writer.write_all(&padding).unwrap();
f4jumble::f4jumble(&writer.into_inner()).unwrap()