switch over to miracl_core (#590)

Author: Daniel-Bloom-dfinity

packages/agent/src/vendor/bls/README.md

@@ -1,16 +1,15 @@
-# How to generate bls.wasm
+# How to Generate `wasm.ts`
 
-The Wasm is generated from the BLS Rust code of the Agent RS (see http://github.com/dfinity/agent-rs/),
-with the following `Cargo.toml`.
+This WASM is generated from the miracl BLS Rust code (see https://github.com/dfinity/miracl_core_bls12381/)
 
-```
-[dependencies]
-wasm-bindgen = "0.2.70"
+Run the following commands to build, minify, and base64 encode the wasm.
+
+```bash
+wasm-pack build --out-name bls --no-default-features --features="wasm-bindgen allow_alt_compress" --profile=wasm
 
-[profile.release]
-lto = true
-opt-level = 'z'
+echo -n "export const wasmBytesBase64 = \`" >pkg/wasm.ts
+base64 ./pkg/bls_bg.wasm | tr -d "\n" >>pkg/wasm.ts
+echo "\`;" >>pkg/wasm.ts
 ```
 
-To build the package, run `wasm-pack build --target web`. You can base64 encode the wasm binary and
-paste it into `bls.ts`.
+Copy the resulting `pkg/wasm.ts` to `packages/agent/src/vendor/bls/wasm.ts`.