Enable rsa for wasm32-unknown-unknown targets

Author: Surkov, Kirill

Cargo.lock

@@ -31,6 +31,9 @@ zeroize = { version = "1.8", optional = true }
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 ring = { workspace = true, features = ["alloc", "std"], optional = true }
 
+[target.wasm32-unknown-unknown.dependencies]
+ring = { workspace = true, features = ["alloc", "std", "wasm32_unknown_unknown_js"], optional = true }
+
 [features]
 secp256k1 = ["dep:k256", "dep:asn1_der", "dep:sha2", "dep:hkdf", "dep:zeroize"]
 ecdsa = ["dep:p256", "dep:zeroize", "dep:sec1", "dep:sha2", "dep:hkdf"]

identity/Cargo.toml

@@ -76,7 +76,13 @@ impl DecodingError {
         }
     }
 
-    #[cfg(all(feature = "rsa", not(target_arch = "wasm32")))]
+    #[cfg(all(
+        feature = "rsa",
+        any(
+            not(target_arch = "wasm32"),
+            all(target_arch = "wasm32", target_os = "unknown")
+        )
+    ))]
     pub(crate) fn encoding_unsupported(key_type: &'static str) -> Self {
         Self {
             msg: format!("encoding {key_type} key to Protobuf is unsupported"),
@@ -106,15 +112,27 @@ pub struct SigningError {
 
 /// An error during encoding of key material.
 impl SigningError {
-    #[cfg(all(feature = "rsa", not(target_arch = "wasm32")))]
+    #[cfg(all(
+        feature = "rsa",
+        any(
+            not(target_arch = "wasm32"),
+            all(target_arch = "wasm32", target_os = "unknown")
+        )
+    ))]
     pub(crate) fn new<S: ToString>(msg: S) -> Self {
         Self {
             msg: msg.to_string(),
             source: None,
         }
     }
 
-    #[cfg(all(feature = "rsa", not(target_arch = "wasm32")))]
+    #[cfg(all(
+        feature = "rsa",
+        any(
+            not(target_arch = "wasm32"),
+            all(target_arch = "wasm32", target_os = "unknown")
+        )
+    ))]
     pub(crate) fn source(self, source: impl Error + Send + Sync + 'static) -> Self {
         Self {
             source: Some(Box::new(source)),