fix(useragent): unsafe, but working implementation of ml-dsa

useragent/rust/.gitignore

@@ -0,0 +1 @@
+/target

useragent/rust/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "rust_lib_arbiter"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "staticlib"]
+
+[dependencies]
+eframe = "0.34.1"
+egui = "0.34.1"
+flutter_rust_bridge = "=2.12.0"
+arbiter-crypto = {path = "../../server/crates/arbiter-crypto"}
+anyhow = "1.0.102"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(frb_expand)'] }

useragent/rust/src/api/mod.rs

@@ -0,0 +1,29 @@
+use anyhow::anyhow;
+use flutter_rust_bridge::frb;
+use arbiter_crypto::authn::{self, USERAGENT_CONTEXT};
+
+#[frb(opaque)]
+pub struct MldsaKey(authn::SigningKey);
+
+impl MldsaKey {
+    pub fn from_bytes(bytes: &[u8]) -> anyhow::Result<Self> {
+        let bytes: [u8; 32] = bytes.try_into().map_err(|_| anyhow!("Invalid key length"))?;
+        Ok(Self(authn::SigningKey::from_seed(bytes)))
+    }
+
+    pub fn to_bytes(&self) -> Vec<u8> {
+        self.0.to_seed().to_vec()
+    }
+
+    pub fn sign(&self, message: &[u8]) -> anyhow::Result<Vec<u8>> {
+        Ok(self.0.sign_message(message, USERAGENT_CONTEXT)?.to_bytes())
+    }
+
+    pub fn generate() -> Self {
+        Self(authn::SigningKey::generate())
+    }
+
+    pub fn get_public_key(&self) -> Vec<u8> {
+        self.0.public_key().to_bytes().to_vec()
+    }
+}

useragent/rust/src/frb_generated.rs

@@ -0,0 +1,558 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.12.0.
+
+#![allow(
+    non_camel_case_types,
+    unused,
+    non_snake_case,
+    clippy::needless_return,
+    clippy::redundant_closure_call,
+    clippy::redundant_closure,
+    clippy::useless_conversion,
+    clippy::unit_arg,
+    clippy::unused_unit,
+    clippy::double_parens,
+    clippy::let_and_return,
+    clippy::too_many_arguments,
+    clippy::match_single_binding,
+    clippy::clone_on_copy,
+    clippy::let_unit_value,
+    clippy::deref_addrof,
+    clippy::explicit_auto_deref,
+    clippy::borrow_deref_ref,
+    clippy::uninlined_format_args,
+    clippy::needless_borrow
+)]
+
+// Section: imports
+
+use crate::api::*;
+use flutter_rust_bridge::for_generated::byteorder::{NativeEndian, ReadBytesExt, WriteBytesExt};
+use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+// Section: boilerplate
+
+flutter_rust_bridge::frb_generated_boilerplate!(
+    default_stream_sink_codec = SseCodec,
+    default_rust_opaque = RustOpaqueMoi,
+    default_rust_auto_opaque = RustAutoOpaqueMoi,
+);
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_VERSION: &str = "2.12.0";
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH: i32 = -437661335;
+
+// Section: executor
+
+flutter_rust_bridge::frb_generated_default_handler!();
+
+// Section: wire_funcs
+
+fn wire__crate__api__MldsaKey_from_bytes_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "MldsaKey_from_bytes",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            let api_bytes = <Vec<u8>>::sse_decode(&mut deserializer);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, flutter_rust_bridge::for_generated::anyhow::Error>(
+                    (move || {
+                        let output_ok = crate::api::MldsaKey::from_bytes(&api_bytes)?;
+                        Ok(output_ok)
+                    })(),
+                )
+            }
+        },
+    )
+}
+fn wire__crate__api__MldsaKey_generate_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "MldsaKey_generate",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok(crate::api::MldsaKey::generate())?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+fn wire__crate__api__MldsaKey_get_public_key_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "MldsaKey_get_public_key",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            let api_that = <RustOpaqueMoi<
+                flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>,
+            >>::sse_decode(&mut deserializer);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, ()>((move || {
+                    let mut api_that_guard = None;
+                    let decode_indices_ =
+                        flutter_rust_bridge::for_generated::lockable_compute_decode_order(vec![
+                            flutter_rust_bridge::for_generated::LockableOrderInfo::new(
+                                &api_that, 0, false,
+                            ),
+                        ]);
+                    for i in decode_indices_ {
+                        match i {
+                            0 => api_that_guard = Some(api_that.lockable_decode_sync_ref()),
+                            _ => unreachable!(),
+                        }
+                    }
+                    let api_that_guard = api_that_guard.unwrap();
+                    let output_ok = Result::<_, ()>::Ok(crate::api::MldsaKey::get_public_key(
+                        &*api_that_guard,
+                    ))?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+fn wire__crate__api__MldsaKey_sign_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "MldsaKey_sign",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            let api_that = <RustOpaqueMoi<
+                flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>,
+            >>::sse_decode(&mut deserializer);
+            let api_message = <Vec<u8>>::sse_decode(&mut deserializer);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, flutter_rust_bridge::for_generated::anyhow::Error>(
+                    (move || {
+                        let mut api_that_guard = None;
+                        let decode_indices_ =
+                            flutter_rust_bridge::for_generated::lockable_compute_decode_order(
+                                vec![flutter_rust_bridge::for_generated::LockableOrderInfo::new(
+                                    &api_that, 0, false,
+                                )],
+                            );
+                        for i in decode_indices_ {
+                            match i {
+                                0 => api_that_guard = Some(api_that.lockable_decode_sync_ref()),
+                                _ => unreachable!(),
+                            }
+                        }
+                        let api_that_guard = api_that_guard.unwrap();
+                        let output_ok = crate::api::MldsaKey::sign(&*api_that_guard, &api_message)?;
+                        Ok(output_ok)
+                    })(),
+                )
+            }
+        },
+    )
+}
+fn wire__crate__api__MldsaKey_to_bytes_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "MldsaKey_to_bytes",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            let api_that = <RustOpaqueMoi<
+                flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>,
+            >>::sse_decode(&mut deserializer);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, ()>((move || {
+                    let mut api_that_guard = None;
+                    let decode_indices_ =
+                        flutter_rust_bridge::for_generated::lockable_compute_decode_order(vec![
+                            flutter_rust_bridge::for_generated::LockableOrderInfo::new(
+                                &api_that, 0, false,
+                            ),
+                        ]);
+                    for i in decode_indices_ {
+                        match i {
+                            0 => api_that_guard = Some(api_that.lockable_decode_sync_ref()),
+                            _ => unreachable!(),
+                        }
+                    }
+                    let api_that_guard = api_that_guard.unwrap();
+                    let output_ok =
+                        Result::<_, ()>::Ok(crate::api::MldsaKey::to_bytes(&*api_that_guard))?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+
+// Section: related_funcs
+
+flutter_rust_bridge::frb_generated_moi_arc_impl_value!(
+    flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>
+);
+
+// Section: dart2rust
+
+impl SseDecode for flutter_rust_bridge::for_generated::anyhow::Error {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <String>::sse_decode(deserializer);
+        return flutter_rust_bridge::for_generated::anyhow::anyhow!("{}", inner);
+    }
+}
+
+impl SseDecode for MldsaKey {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <RustOpaqueMoi<
+            flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>,
+        >>::sse_decode(deserializer);
+        return flutter_rust_bridge::for_generated::rust_auto_opaque_decode_owned(inner);
+    }
+}
+
+impl SseDecode
+    for RustOpaqueMoi<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>
+{
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <usize>::sse_decode(deserializer);
+        return decode_rust_opaque_moi(inner);
+    }
+}
+
+impl SseDecode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <Vec<u8>>::sse_decode(deserializer);
+        return String::from_utf8(inner).unwrap();
+    }
+}
+
+impl SseDecode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut len_ = <i32>::sse_decode(deserializer);
+        let mut ans_ = Vec::with_capacity(len_ as usize);
+        for idx_ in 0..len_ {
+            ans_.push(<u8>::sse_decode(deserializer));
+        }
+        return ans_;
+    }
+}
+
+impl SseDecode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap()
+    }
+}
+
+impl SseDecode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {}
+}
+
+impl SseDecode for usize {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u64::<NativeEndian>().unwrap() as _
+    }
+}
+
+impl SseDecode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_i32::<NativeEndian>().unwrap()
+    }
+}
+
+impl SseDecode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap() != 0
+    }
+}
+
+fn pde_ffi_dispatcher_primary_impl(
+    func_id: i32,
+    port: flutter_rust_bridge::for_generated::MessagePort,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        1 => wire__crate__api__MldsaKey_from_bytes_impl(port, ptr, rust_vec_len, data_len),
+        2 => wire__crate__api__MldsaKey_generate_impl(port, ptr, rust_vec_len, data_len),
+        3 => wire__crate__api__MldsaKey_get_public_key_impl(port, ptr, rust_vec_len, data_len),
+        4 => wire__crate__api__MldsaKey_sign_impl(port, ptr, rust_vec_len, data_len),
+        5 => wire__crate__api__MldsaKey_to_bytes_impl(port, ptr, rust_vec_len, data_len),
+        _ => unreachable!(),
+    }
+}
+
+fn pde_ffi_dispatcher_sync_impl(
+    func_id: i32,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        _ => unreachable!(),
+    }
+}
+
+// Section: rust2dart
+
+// Codec=Dco (DartCObject based), see doc to use other codecs
+impl flutter_rust_bridge::IntoDart for FrbWrapper<MldsaKey> {
+    fn into_dart(self) -> flutter_rust_bridge::for_generated::DartAbi {
+        flutter_rust_bridge::for_generated::rust_auto_opaque_encode::<_, MoiArc<_>>(self.0)
+            .into_dart()
+    }
+}
+impl flutter_rust_bridge::for_generated::IntoDartExceptPrimitive for FrbWrapper<MldsaKey> {}
+
+impl flutter_rust_bridge::IntoIntoDart<FrbWrapper<MldsaKey>> for MldsaKey {
+    fn into_into_dart(self) -> FrbWrapper<MldsaKey> {
+        self.into()
+    }
+}
+
+impl SseEncode for flutter_rust_bridge::for_generated::anyhow::Error {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <String>::sse_encode(format!("{:?}", self), serializer);
+    }
+}
+
+impl SseEncode for MldsaKey {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <RustOpaqueMoi<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>>::sse_encode(flutter_rust_bridge::for_generated::rust_auto_opaque_encode::<_, MoiArc<_>>(self), serializer);
+    }
+}
+
+impl SseEncode
+    for RustOpaqueMoi<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>
+{
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        let (ptr, size) = self.sse_encode_raw();
+        <usize>::sse_encode(ptr, serializer);
+        <i32>::sse_encode(size, serializer);
+    }
+}
+
+impl SseEncode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <Vec<u8>>::sse_encode(self.into_bytes(), serializer);
+    }
+}
+
+impl SseEncode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <i32>::sse_encode(self.len() as _, serializer);
+        for item in self {
+            <u8>::sse_encode(item, serializer);
+        }
+    }
+}
+
+impl SseEncode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self).unwrap();
+    }
+}
+
+impl SseEncode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {}
+}
+
+impl SseEncode for usize {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer
+            .cursor
+            .write_u64::<NativeEndian>(self as _)
+            .unwrap();
+    }
+}
+
+impl SseEncode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_i32::<NativeEndian>(self).unwrap();
+    }
+}
+
+impl SseEncode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self as _).unwrap();
+    }
+}
+
+#[cfg(not(target_family = "wasm"))]
+mod io {
+    // This file is automatically generated, so please do not edit it.
+    // @generated by `flutter_rust_bridge`@ 2.12.0.
+
+    // Section: imports
+
+    use super::*;
+    use crate::api::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_io!();
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_arbiter_rust_arc_increment_strong_count_RustOpaque_flutter_rust_bridgefor_generatedRustAutoOpaqueInnerMldsaKey(
+        ptr: *const std::ffi::c_void,
+    ) {
+        MoiArc::<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>::increment_strong_count(ptr as _);
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_arbiter_rust_arc_decrement_strong_count_RustOpaque_flutter_rust_bridgefor_generatedRustAutoOpaqueInnerMldsaKey(
+        ptr: *const std::ffi::c_void,
+    ) {
+        MoiArc::<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>::decrement_strong_count(ptr as _);
+    }
+}
+#[cfg(not(target_family = "wasm"))]
+pub use io::*;
+
+/// cbindgen:ignore
+#[cfg(target_family = "wasm")]
+mod web {
+    // This file is automatically generated, so please do not edit it.
+    // @generated by `flutter_rust_bridge`@ 2.12.0.
+
+    // Section: imports
+
+    use super::*;
+    use crate::api::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::wasm_bindgen;
+    use flutter_rust_bridge::for_generated::wasm_bindgen::prelude::*;
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_web!();
+
+    #[wasm_bindgen]
+    pub fn rust_arc_increment_strong_count_RustOpaque_flutter_rust_bridgefor_generatedRustAutoOpaqueInnerMldsaKey(
+        ptr: *const std::ffi::c_void,
+    ) {
+        MoiArc::<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>::increment_strong_count(ptr as _);
+    }
+
+    #[wasm_bindgen]
+    pub fn rust_arc_decrement_strong_count_RustOpaque_flutter_rust_bridgefor_generatedRustAutoOpaqueInnerMldsaKey(
+        ptr: *const std::ffi::c_void,
+    ) {
+        MoiArc::<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<MldsaKey>>::decrement_strong_count(ptr as _);
+    }
+}
+#[cfg(target_family = "wasm")]
+pub use web::*;

useragent/rust/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod api;
+mod frb_generated;