feat: support wasm32 target

.github/workflows/ci.yml

@@ -37,6 +37,13 @@ jobs:
         target: thumbv6m-none-eabi
         override: true
 
+    - name: Install toolchain WASM
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        target: wasm32-unknown-unknown
+        override: true
+
     - name: Install Cargo.toml linter
       uses: baptiste0928/cargo-install@v1
       with:
@@ -73,6 +80,24 @@ jobs:
         command: build
         args: --verbose --target thumbv6m-none-eabi --no-default-features --features random
 
+    - name: Build WASM
+      uses: actions-rs/cargo@v1
+      with:
+        command: build
+        args: --verbose --target wasm32-unknown-unknown --no-default-features
+
+    - name: Build WASM alloc
+      uses: actions-rs/cargo@v1
+      with:
+        command: build
+        args: --verbose --target wasm32-unknown-unknown --no-default-features --features alloc
+
+    - name: Build WASM random
+      uses: actions-rs/cargo@v1
+      with:
+        command: build
+        args: --verbose --target wasm32-unknown-unknown --no-default-features --features random
+
     - name: Run tests all features
       uses: actions-rs/cargo@v1
       with:

Cargo.toml

@@ -14,26 +14,26 @@ description = "Fuel cryptographic primitives."
 borrown = "0.1"
 fuel-types = { version = "0.5", default-features = false }
 lazy_static = { version = "1.4", optional = true }
-rand = { version = "0.8", default-features = false, features = ["std_rng"], optional = true }
-# `rand-std` is used to further protect the blinders from side-channel attacks and won't compromise
-# the deterministic arguments of the signature (key, nonce, message), as defined in the RFC-6979
-secp256k1 = { version = "0.20", features = [ "rand-std", "recovery" ], optional = true }
+rand = { version = "0.8", default-features = false, optional = true }
+secp256k1 = { version = "0.20", default-features = false, features = ["recovery"], optional = true }
 serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
 sha2 = { version = "0.9", default-features = false }
 
 [dev-dependencies]
 bincode = { version = "1.3", default-features = false }
 criterion = "0.3"
 fuel-crypto = { path = ".", default-features = false, features = ["random"] }
-k256 = { version = "0.10", features = [ "ecdsa" ] }
+k256 = { version = "0.10", features = ["ecdsa"] }
 rand = { version = "0.8", default-features = false, features = ["std_rng"] }
 sha2 = "0.9"
 
 [features]
 default = ["fuel-types/default", "std"]
+alloc = ["rand/alloc", "secp256k1/alloc"]
 random = ["fuel-types/random", "rand"]
 serde = ["dep:serde", "fuel-types/serde"]
-std = ["fuel-types/std", "lazy_static", "secp256k1", "serde?/default"]
+std = ["alloc", "fuel-types/std", "lazy_static", "secp256k1/rand-std", "serde?/default"]
+wasm = ["secp256k1/rand"]
 
 [[test]]
 name = "test-serde"

tests/signer.rs

@@ -96,11 +96,9 @@ fn signer() {
 
     signature
         .verify(public_p.as_ref(), &message)
-        .err()
-        .expect("Wrong key should fail verification");
+        .expect_err("Wrong key should fail verification");
 
     signature_p
         .verify(public.as_ref(), &message)
-        .err()
-        .expect("Wrong key should fail verification");
+        .expect_err("Wrong key should fail verification");
 }