Rust updates for bech32 encode/decode

CHANGELOG.md

@@ -14,10 +14,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Function to generate a seed phrase
 - Implementations of `Read` for types
 - Function to make RPC calls to `zebrad`
+- Function to encode unified addresses from receivers
 
 ### Changed
 
 - Update installation to `cabal`
+- Updated `bech32` Rust crate to 0.11
 
 ### Removed
 

librustzcash-wrapper/Cargo.lock

@@ -88,6 +88,12 @@ version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d86b93f97252c47b41663388e6d155714a9d0c398b99f1005cbc5f978b29f445"
 
+[[package]]
+name = "bech32"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d965446196e3b7decd44aa7ee49e31d630118f90ef12f97900f262eb915c951d"
+
 [[package]]
 name = "bincode"
 version = "1.3.3"
@@ -1282,7 +1288,7 @@ dependencies = [
 name = "rustzcash-wrapper"
 version = "0.1.0"
 dependencies = [
- "bech32 0.9.1",
+ "bech32 0.11.0",
  "borsh 0.10.3",
  "f4jumble",
  "haskell-ffi",

librustzcash-wrapper/Cargo.toml

@@ -10,7 +10,7 @@ haskell-ffi.rev = "2bf292e2e56eac8e9fb0fb2e1450cf4a4bd01274"
 f4jumble = "0.1"
 zcash_address = "0.2.0"
 borsh = "0.10"
-bech32 = "0.9.1"
+bech32 = "0.11"
 orchard = "0.4.0"
 zcash_note_encryption = "0.3.0"
 zcash_primitives = "0.11.0"

librustzcash-wrapper/src/lib.rs

@@ -71,10 +71,8 @@ use zcash_note_encryption::EphemeralKeyBytes;
 
 use bech32::{
     decode,
-    u5,
-    FromBase32,
-    ToBase32,
-    Variant
+    Hrp,
+    Bech32m
 };
 
 pub enum RW {}
@@ -330,8 +328,8 @@ pub extern "C" fn rust_wrapper_bech32decode(
     let input: String = marshall_from_haskell_var(input, input_len, RW);
     let decodedBytes = bech32::decode(&input);
     match decodedBytes {
-        Ok((hrp, bytes, variant)) => {
-            let rd = RawData {hrp: hrp.into(), bytes: Vec::<u8>::from_base32(&bytes).unwrap()};
+        Ok((hrp, bytes)) => {
+            let rd = RawData {hrp: hrp.as_bytes().to_vec(), bytes};
             marshall_to_haskell_var(&rd, out, out_len, RW);
         }
         Err(_e) => {
@@ -341,6 +339,22 @@ pub extern "C" fn rust_wrapper_bech32decode(
     }
 }
 
+#[no_mangle]
+pub extern "C" fn rust_wrapper_bech32_encode(
+    hr: *const u8,
+    hr_len: usize,
+    b: *const u8,
+    b_len: usize,
+    out: *mut u8,
+    out_len: &mut usize
+    ) {
+    let hr: String = marshall_from_haskell_var(hr, hr_len, RW);
+    let hrp = Hrp::parse(&hr).unwrap();
+    let b: Vec<u8> = marshall_from_haskell_var(b, b_len, RW);
+    let string = bech32::encode::<Bech32m>(hrp, &b).unwrap();
+    marshall_to_haskell_var(&string, out, out_len, RW);
+}
+
 #[no_mangle]
 pub extern "C" fn rust_wrapper_svk_decode(
     input: *const u8,