Implement Guaranteed Addresses

Closes https://github.com/serai-dex/serai/issues/27.

monero-rs is now solely used for Extra encoding.

coins/monero/src/wallet/mod.rs

@@ -6,6 +6,8 @@ use crate::{
   transaction::Input
 };
 
+pub mod address;
+
 mod scan;
 pub use scan::SpendableOutput;
 
@@ -23,7 +25,7 @@ fn key_image_sort(x: &EdwardsPoint, y: &EdwardsPoint) -> std::cmp::Ordering {
 
 // https://github.com/monero-project/research-lab/issues/103
 pub(crate) fn uniqueness(inputs: &[Input]) -> [u8; 32] {
-  let mut u = b"domain_separator".to_vec();
+  let mut u = b"uniqueness".to_vec();
   for input in inputs {
     match input {
       // If Gen, this should be the only input, making this loop somewhat pointless
@@ -63,3 +65,9 @@ pub(crate) fn commitment_mask(shared_key: Scalar) -> Scalar {
   mask.extend(shared_key.to_bytes());
   hash_to_scalar(&mask)
 }
+
+#[derive(Clone, Copy)]
+pub struct ViewPair {
+  pub spend: EdwardsPoint,
+  pub view: Scalar
+}