Update features to build with wasm

crates/cdk/Cargo.toml

@@ -58,8 +58,10 @@ uuid = { version = "1", features = ["v4"] }
 # -Z minimal-versions
 sync_wrapper = "0.1.2"
 bech32 = "0.9.1"
-tokio-tungstenite = { version = "0.24.0", features = ["tokio-native-tls"] }
-rand = "0.8.5"
+tokio-tungstenite = { version = "0.23.0", features = [
+    "rustls",
+    "rustls-tls-native-roots",
+] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 tokio = { version = "1.21", features = [
@@ -68,6 +70,7 @@ tokio = { version = "1.21", features = [
     "macros",
     "sync",
 ] }
+getrandom = { version = "0.2" }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 tokio = { version = "1.21", features = ["rt", "macros", "sync", "time"] }

crates/cdk/src/wallet/mod.rs

@@ -19,7 +19,7 @@ use crate::{
 };
 use bitcoin::{bip32::Xpriv, Network};
 use client::HttpClientMethods;
-use rand::{distributions::Alphanumeric, thread_rng, Rng};
+use getrandom::getrandom;
 use std::{collections::HashMap, str::FromStr, sync::Arc};
 use subscription::{ActiveSubscription, SubscriptionManager};
 use tracing::instrument;
@@ -63,6 +63,8 @@ pub struct Wallet {
     subscription: SubscriptionManager,
 }
 
+const ALPHANUMERIC: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
 /// Wallet Subscription filter
 #[derive(Debug, Clone)]
 pub enum WalletSubscription {
@@ -76,11 +78,17 @@ pub enum WalletSubscription {
 
 impl From<WalletSubscription> for Params {
     fn from(val: WalletSubscription) -> Self {
-        let id: String = thread_rng()
-            .sample_iter(&Alphanumeric)
-            .take(10)
-            .map(char::from)
-            .collect();
+        let mut buffer = vec![0u8; 10];
+
+        getrandom(&mut buffer).expect("Failed to generate random bytes");
+
+        let id = buffer
+            .iter()
+            .map(|&byte| {
+                let index = byte as usize % ALPHANUMERIC.len(); // 62 alphanumeric characters (A-Z, a-z, 0-9)
+                ALPHANUMERIC[index] as char
+            })
+            .collect::<String>();
 
         match val {
             WalletSubscription::ProofState(filters) => Params {