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+name = "zewif"
+version = "0.1.0"
+dependencies = [
+ "bc-components",
+ "bc-crypto 0.13.0",
+ "bc-envelope",
+ "bc-rand 0.5.0",
+ "chrono",
+ "dcbor",
+ "hex",
+ "rand 0.9.2",
+ "thiserror",
+]
diff --git a/src/amount.rs b/src/amount.rs
index 81ad3e1..b21c2ae 100644
--- a/src/amount.rs
+++ b/src/amount.rs
@@ -357,8 +357,7 @@ mod tests {
     impl crate::RandomInstance for Amount {
         fn random() -> Self {
             let mut rng = bc_rand::thread_rng();
-            let value =
-                rand::Rng::gen_range(&mut rng, -MAX_BALANCE..=MAX_BALANCE);
+            let value = rand::Rng::random_range(&mut rng, -MAX_BALANCE..=MAX_BALANCE);
             Self(value)
         }
     }
diff --git a/src/block_height.rs b/src/block_height.rs
index a604699..2f4f0b1 100644
--- a/src/block_height.rs
+++ b/src/block_height.rs
@@ -235,7 +235,7 @@ mod tests {
     impl crate::RandomInstance for BlockHeight {
         fn random() -> Self {
             let mut rng = bc_rand::thread_rng();
-            let value = rand::Rng::gen_range(&mut rng, 0..u32::MAX);
+            let value = rand::Rng::random_range(&mut rng, 0..u32::MAX);
             Self(value)
         }
     }
diff --git a/src/protocol_address.rs b/src/protocol_address.rs
index a73a59c..cd79b04 100644
--- a/src/protocol_address.rs
+++ b/src/protocol_address.rs
@@ -1,8 +1,4 @@
-use crate::{
-    UnifiedAddress,
-    error::Error,
-    sapling, transparent,
-};
+use crate::{UnifiedAddress, error::Error, sapling, transparent};
 use bc_envelope::prelude::*;
 
 /// A protocol-specific Zcash address representation without additional metadata.
@@ -199,24 +195,16 @@ impl TryFrom<Envelope> for ProtocolAddress {
 #[cfg(test)]
 mod tests {
     use super::ProtocolAddress;
-    use crate::{
-        UnifiedAddress, sapling, test_envelope_roundtrip, transparent,
-    };
+    use crate::{UnifiedAddress, sapling, test_envelope_roundtrip, transparent};
 
     impl crate::RandomInstance for ProtocolAddress {
         fn random() -> Self {
-            let mut rng = rand::thread_rng();
-            let choice = rand::Rng::gen_range(&mut rng, 0..3);
+            let mut rng = rand::rng();
+            let choice = rand::Rng::random_range(&mut rng, 0..3);
             match choice {
-                0 => {
-                    ProtocolAddress::Transparent(transparent::Address::random())
-                }
-                1 => ProtocolAddress::Sapling(Box::new(
-                    sapling::Address::random(),
-                )),
-                _ => {
-                    ProtocolAddress::Unified(Box::new(UnifiedAddress::random()))
-                }
+                0 => ProtocolAddress::Transparent(transparent::Address::random()),
+                1 => ProtocolAddress::Sapling(Box::new(sapling::Address::random())),
+                _ => ProtocolAddress::Unified(Box::new(UnifiedAddress::random())),
             }
         }
     }
diff --git a/src/test_utils.rs b/src/test_utils.rs
index 364aa4a..4da9d13 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -21,9 +21,7 @@ pub trait RandomInstance {
     where
         Self: Sized,
     {
-        panic!(
-            "RandomInstance::random_with_size is not implemented for this type"
-        );
+        panic!("RandomInstance::random_with_size is not implemented for this type");
     }
 
     fn opt_random_with_size(size: usize) -> Option<Self>
@@ -62,14 +60,13 @@ impl RandomInstance for usize {
 impl RandomInstance for String {
     fn random() -> Self {
         let mut rng = bc_rand::thread_rng();
-        let len = rand::Rng::gen_range(&mut rng, 10..=100);
-        let alphabet =
-            "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+        let len = rand::Rng::random_range(&mut rng, 10..=100);
+        let alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
         let mut s = String::new();
         for _ in 0..len {
             let c = alphabet
                 .chars()
-                .nth(rand::Rng::gen_range(&mut rng, 0..alphabet.len()))
+                .nth(rand::Rng::random_range(&mut rng, 0..alphabet.len()))
                 .unwrap();
             s.push(c);
         }
@@ -83,7 +80,7 @@ where
 {
     fn random() -> Self {
         let mut rng = bc_rand::thread_rng();
-        let len = rand::Rng::gen_range(&mut rng, 1..=5);
+        let len = rand::Rng::random_range(&mut rng, 1..=5);
         (0..len).map(|_| T::random()).collect()
     }
 }
@@ -95,7 +92,7 @@ where
 {
     fn random() -> Self {
         let mut rng = bc_rand::thread_rng();
-        let len = rand::Rng::gen_range(&mut rng, 1..=10);
+        let len = rand::Rng::random_range(&mut rng, 1..=10);
         (0..len).map(|_| (K::random(), V::random())).collect()
     }
 }
@@ -106,7 +103,7 @@ where
 {
     fn random() -> Self {
         let mut rng = bc_rand::thread_rng();
-        let len = rand::Rng::gen_range(&mut rng, 1..=10);
+        let len = rand::Rng::random_range(&mut rng, 1..=10);
         (0..len).map(|_| T::random()).collect()
     }
 }
@@ -180,13 +177,9 @@ impl RandomInstance for Attachments {
     fn random() -> Self {
         let mut attachments = Attachments::new();
         let mut rng = bc_rand::thread_rng();
-        let len = rand::Rng::gen_range(&mut rng, 0..=3);
+        let len = rand::Rng::random_range(&mut rng, 0..=3);
         for _ in 0..len {
-            attachments.add(
-                String::random(),
-                String::random(),
-                String::opt_random(),
-            );
+            attachments.add(String::random(), String::random(), String::opt_random());
         }
         attachments
     }
diff --git a/src/transparent/transparent_spend_authority.rs b/src/transparent/transparent_spend_authority.rs
index b768bbc..00f2034 100644
--- a/src/transparent/transparent_spend_authority.rs
+++ b/src/transparent/transparent_spend_authority.rs
@@ -73,8 +73,8 @@ impl TryFrom<Envelope> for TransparentSpendAuthority {
 #[cfg(test)]
 impl crate::RandomInstance for TransparentSpendAuthority {
     fn random() -> Self {
-        let mut rng = rand::thread_rng();
-        let a = rand::Rng::gen_range(&mut rng, 0..=1);
+        let mut rng = rand::rng();
+        let a = rand::Rng::random_range(&mut rng, 0..=1);
         if a == 0 {
             TransparentSpendAuthority::SpendingKey(TransparentSpendingKey::random())
         } else {