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+ "thiserror-impl",
+]
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+[[package]]
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+ "proc-macro2",
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+ "syn 2.0.68",
+]
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+ "gloo-utils",
+ "serde",
+ "serde_json",
+ "tsify-macros",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "tsify-macros"
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+ "proc-macro2",
+ "quote",
+ "serde_derive_internals",
+ "syn 2.0.68",
+]
+
+[[package]]
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+
+[[package]]
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+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
+[[package]]
+name = "version_check"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
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+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
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+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76bc14366121efc8dbb487ab05bcc9d346b3b5ec0eaa76e46594cabbe51762c0"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
+
+[[package]]
+name = "wasm-bindgen-test"
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+checksum = "d9bf62a58e0780af3e852044583deee40983e5886da43a271dd772379987667b"
+dependencies = [
+ "console_error_panic_hook",
+ "js-sys",
+ "scoped-tls",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wasm-bindgen-test-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-test-macro"
+version = "0.3.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7f89739351a2e03cb94beb799d47fb2cac01759b40ec441f7de39b00cbf7ef0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
+[[package]]
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+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77afa9a11836342370f4817622a2f0f418b134426d91a82dfb48f532d2ec13ef"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "zerocopy"
+version = "0.7.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae87e3fcd617500e5d106f0380cf7b77f3c6092aae37191433159dda23cfb087"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+dependencies = [
+ "zeroize_derive",
+]
+
+[[package]]
+name = "zeroize_derive"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
diff --git a/wasm/Cargo.toml b/wasm/Cargo.toml
new file mode 100644
index 0000000..9ec1d1f
--- /dev/null
+++ b/wasm/Cargo.toml
@@ -0,0 +1,37 @@
+[package]
+name = "stark-vrf-wasm"
+version = "0.1.0"
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+default = ["console_error_panic_hook"]
+
+[dependencies]
+wasm-bindgen = "0.2.84"
+tsify = "0.4.5"
+js-sys = "0.3.66"
+serde_json = "1.0.115"
+serde = { version = "1.0.193", features = ["derive"] }
+
+starknet-ff = "0.3.7"
+ark-ec = "0.4.2"
+ark-ff = "0.4.2"
+
+stark-vrf = { path = "../rust" }
+
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.7", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.34"
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
diff --git a/wasm/README.md b/wasm/README.md
new file mode 100644
index 0000000..6b68408
--- /dev/null
+++ b/wasm/README.md
@@ -0,0 +1,84 @@
+
+
+## About
+
+[**📚 Read this template tutorial! 📚**][template-docs]
+
+This template is designed for compiling Rust libraries into WebAssembly and
+publishing the resulting package to NPM.
+
+Be sure to check out [other `wasm-pack` tutorials online][tutorials] for other
+templates and usages of `wasm-pack`.
+
+[tutorials]: https://rustwasm.github.io/docs/wasm-pack/tutorials/index.html
+[template-docs]: https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html
+
+## 🚴 Usage
+
+### 🐑 Use `cargo generate` to Clone this Template
+
+[Learn more about `cargo generate` here.](https://github.com/ashleygwilliams/cargo-generate)
+
+```
+cargo generate --git https://github.com/rustwasm/wasm-pack-template.git --name my-project
+cd my-project
+```
+
+### 🛠️ Build with `wasm-pack build`
+
+```
+wasm-pack build
+```
+
+### 🔬 Test in Headless Browsers with `wasm-pack test`
+
+```
+wasm-pack test --headless --firefox
+```
+
+### 🎁 Publish to NPM with `wasm-pack publish`
+
+```
+wasm-pack publish
+```
+
+## 🔋 Batteries Included
+
+* [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) for communicating
+ between WebAssembly and JavaScript.
+* [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook)
+ for logging panic messages to the developer console.
+* `LICENSE-APACHE` and `LICENSE-MIT`: most Rust projects are licensed this way, so these are included for you
+
+## License
+
+Licensed under either of
+
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.
diff --git a/wasm/src/lib.rs b/wasm/src/lib.rs
new file mode 100644
index 0000000..a6f315e
--- /dev/null
+++ b/wasm/src/lib.rs
@@ -0,0 +1,137 @@
+mod utils;
+
+use serde::{Deserialize, Serialize};
+use tsify::Tsify;
+use utils::set_panic_hook;
+
+use wasm_bindgen::prelude::*;
+
+use ark_ec::{
+ short_weierstrass::{Affine, SWCurveConfig},
+ AffineRepr, CurveGroup,
+};
+use starknet_ff::FieldElement;
+
+use stark_vrf::{
+ base_field_from_field_element, scalar_field_from_field_element, Proof, StarkCurve, StarkVRF,
+};
+
+#[wasm_bindgen]
+extern "C" {
+ fn alert(s: &str);
+}
+
+#[wasm_bindgen(js_name = StarkVRF)]
+pub struct StarkVRFJs {
+ inner: StarkVRF,
+}
+
+#[derive(Tsify, Serialize, Deserialize)]
+#[tsify(into_wasm_abi, from_wasm_abi)]
+pub struct ProofJs {
+ gamma: Point,
+ c: String,
+ s: String,
+}
+
+#[wasm_bindgen]
+#[derive(Serialize, Deserialize)]
+pub struct Point {
+ x: String,
+ y: String,
+}
+
+impl From<&Proof> for ProofJs {
+ fn from(value: &Proof) -> Self {
+ ProofJs {
+ gamma: Point {
+ x: value.0.x().unwrap().to_string(),
+ y: value.0.y().unwrap().to_string(),
+ },
+ c: value.1.to_string(),
+ s: value.2.to_string(),
+ }
+ }
+}
+
+impl From for Proof {
+ fn from(value: ProofJs) -> Self {
+ let x = FieldElement::from_dec_str(&value.gamma.x).unwrap();
+ let y = FieldElement::from_dec_str(&value.gamma.y).unwrap();
+ let c = FieldElement::from_dec_str(&value.c).unwrap();
+ let s = FieldElement::from_dec_str(&value.s).unwrap();
+
+ (
+ Affine::::new(
+ base_field_from_field_element(&x),
+ base_field_from_field_element(&y),
+ ),
+ scalar_field_from_field_element(&c),
+ scalar_field_from_field_element(&s),
+ )
+ }
+}
+
+#[wasm_bindgen(js_class = StarkVRF)]
+impl StarkVRFJs {
+ pub fn new(secret_key: String) -> Self {
+ set_panic_hook();
+
+ let secret_key = FieldElement::from_hex_be(&secret_key).unwrap();
+ let secret_key = scalar_field_from_field_element(&secret_key);
+
+ let public_key = (StarkCurve::GENERATOR * secret_key).into_affine();
+
+ let ecvrf = StarkVRF::new(public_key).unwrap();
+
+ Self { inner: ecvrf }
+ }
+
+ #[wasm_bindgen]
+ pub fn prove(&self, secret_key: String, seed: String) -> ProofJs {
+ set_panic_hook();
+
+ let secret_key = FieldElement::from_hex_be(&secret_key).unwrap();
+ let secret_key = scalar_field_from_field_element(&secret_key);
+
+ let seed = FieldElement::from_hex_be(&seed).unwrap();
+ let seed = base_field_from_field_element(&seed);
+
+ let proof: Proof = self.inner.prove(&secret_key, &[seed]).unwrap();
+
+ ProofJs::from(&proof)
+ }
+
+ #[wasm_bindgen(js_name = hashToSqrtRatioHint)]
+ pub fn hash_to_sqrt_ratio_hint(&self, seed: String) -> String {
+ set_panic_hook();
+
+ let seed = FieldElement::from_hex_be(&seed).unwrap();
+ let seed = base_field_from_field_element(&seed);
+
+ self.inner.hash_to_sqrt_ratio_hint(&[seed]).to_string()
+ }
+
+ #[wasm_bindgen(js_name = proofToHash)]
+ pub fn proof_to_hash(&self, proof: ProofJs) -> String {
+ set_panic_hook();
+
+ let proof: Proof = proof.into();
+ self.inner.proof_to_hash(&proof).unwrap().to_string()
+ }
+
+ #[wasm_bindgen]
+ pub fn verify(&self, proof: ProofJs, seed: String) -> bool {
+ set_panic_hook();
+
+ let seed = FieldElement::from_hex_be(&seed).unwrap();
+ let seed = base_field_from_field_element(&seed);
+
+ let proof: Proof = proof.into();
+
+ match self.inner.verify(&proof, &[seed]) {
+ Ok(_) => true,
+ Err(_) => false,
+ }
+ }
+}
diff --git a/wasm/src/utils.rs b/wasm/src/utils.rs
new file mode 100644
index 0000000..b1d7929
--- /dev/null
+++ b/wasm/src/utils.rs
@@ -0,0 +1,10 @@
+pub fn set_panic_hook() {
+ // When the `console_error_panic_hook` feature is enabled, we can call the
+ // `set_panic_hook` function at least once during initialization, and then
+ // we will get better error messages if our code ever panics.
+ //
+ // For more details see
+ // https://github.com/rustwasm/console_error_panic_hook#readme
+ #[cfg(feature = "console_error_panic_hook")]
+ console_error_panic_hook::set_once();
+}
diff --git a/wasm/tests/web.rs b/wasm/tests/web.rs
new file mode 100644
index 0000000..de5c1da
--- /dev/null
+++ b/wasm/tests/web.rs
@@ -0,0 +1,13 @@
+//! Test suite for the Web and headless browsers.
+
+#![cfg(target_arch = "wasm32")]
+
+extern crate wasm_bindgen_test;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn pass() {
+ assert_eq!(1 + 1, 2);
+}
+