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+
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+ "const-oid",
+ "der",
+ "sha1",
+ "signature",
+ "spki",
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+
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+name = "zeroize"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 00000000..eeed46a3
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[workspace]
+
+members = [
+    "samples/csr-rust",
+    "samples/dns-rust",
+    "samples/hello-world-rust"
+]
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 10b74be5..22e6912d 100644
--- a/Makefile
+++ b/Makefile
@@ -16,6 +16,9 @@ build-opa-policy-wasm:
 build-ebpf-xdp-prog:
 	cd samples/ebpf; make
 
+build-csr-gen-rust-wasm:
+	cd samples/csr-rust; make
+
 load-hello-world-rust-wasm:
 	sudo ./w3k load -file samples/hello-world-rust/target/wasm32-unknown-unknown/release/hello-world.wasm
 
diff --git a/samples/csr-go/Makefile b/samples/csr-go/Makefile
new file mode 100644
index 00000000..864b896d
--- /dev/null
+++ b/samples/csr-go/Makefile
@@ -0,0 +1,5 @@
+go-csr:
+	tinygo build -o csr-go.wasm \
+	-target=wasm \
+	-gc=leaking -panic=trap -scheduler=none \
+	-opt=z main.go
diff --git a/samples/csr-go/main.go b/samples/csr-go/main.go
new file mode 100644
index 00000000..73bc6b74
--- /dev/null
+++ b/samples/csr-go/main.go
@@ -0,0 +1,57 @@
+package main
+
+import (
+	"crypto/rand"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/asn1"
+	"encoding/pem"
+	"unsafe"
+)
+
+//export _debug
+func _debug(m string) int32
+
+//export gen_csr
+func gen_csr(privPtr *uint32, privLen int) uint32 {
+
+	unsafePtr := unsafe.Pointer(privPtr)
+
+	priv := *(*[]byte)(unsafe.Pointer(&struct {
+		addr uintptr
+		len  int
+		cap  int
+	}{uintptr(unsafePtr), privLen, privLen}))
+
+	block, _ := pem.Decode(priv)
+
+	rsaPriv, err := x509.ParsePKCS1PrivateKey(block.Bytes)
+	if err != nil {
+		_debug("failed to parse priv key" + err.Error())
+	}
+
+	var csrTemplate = x509.CertificateRequest{
+		Subject:            pkix.Name{},
+		SignatureAlgorithm: x509.SHA256WithRSA,
+		ExtraExtensions: []pkix.Extension{
+			{
+				Id:       asn1.ObjectIdentifier{2, 5, 29, 19},
+				Critical: true,
+			},
+		},
+	}
+	csrCertificate, err := x509.CreateCertificateRequest(rand.Reader, &csrTemplate, rsaPriv)
+	if err != nil {
+		_debug("failed to create certificate signing request" + err.Error())
+	}
+	csr := pem.EncodeToMemory(&pem.Block{
+		Type: "CERTIFICATE REQUEST", Bytes: csrCertificate,
+	})
+
+	csrPtr := uint16(uintptr(unsafe.Pointer(&csr[0])))
+	csrLen := uint16(len(csr))
+
+	return (uint32(csrPtr) << uint32(16)) | uint32(csrLen)
+}
+
+func main() {}
diff --git a/samples/csr-rust/.cargo/config.toml b/samples/csr-rust/.cargo/config.toml
new file mode 100644
index 00000000..63ac6eac
--- /dev/null
+++ b/samples/csr-rust/.cargo/config.toml
@@ -0,0 +1,3 @@
+[build]
+# rustflags = ["-C", "target-feature=+multivalue"]
+target = "wasm32-unknown-unknown" 
diff --git a/samples/csr-rust/Cargo.lock b/samples/csr-rust/Cargo.lock
new file mode 100644
index 00000000..a475d1c7
--- /dev/null
+++ b/samples/csr-rust/Cargo.lock
@@ -0,0 +1,539 @@
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diff --git a/samples/csr-rust/Cargo.toml b/samples/csr-rust/Cargo.toml
new file mode 100644
index 00000000..7cd4b6d7
--- /dev/null
+++ b/samples/csr-rust/Cargo.toml
@@ -0,0 +1,20 @@
+[package]
+name = "csr-rust"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+
+x509-cert = { version = "0.2.3", features = ["builder"] }
+rsa = {version = "0.9.2", features = ["sha2"]}
+getrandom = { version = "0.2", features = ["js"] }
+
+[[bin]]
+name = "csr-rust"
+
+[profile.release]
+lto = 'thin'
+opt-level = "s"
+debug = false
\ No newline at end of file
diff --git a/samples/csr-rust/Makefile b/samples/csr-rust/Makefile
new file mode 100644
index 00000000..5f5339a2
--- /dev/null
+++ b/samples/csr-rust/Makefile
@@ -0,0 +1,3 @@
+rust-sample:
+	cargo build --release
+	cp target/wasm32-unknown-unknown/release/csr-rust.wasm .
diff --git a/samples/csr-rust/src/main.rs b/samples/csr-rust/src/main.rs
new file mode 100644
index 00000000..9f6b4808
--- /dev/null
+++ b/samples/csr-rust/src/main.rs
@@ -0,0 +1,85 @@
+use std::str::FromStr;
+
+use x509_cert::builder::{RequestBuilder, Builder};
+use x509_cert::der::EncodePem;
+use x509_cert::name::Name;
+use rsa::pkcs1v15::SigningKey;
+use rsa::pkcs8::{DecodePrivateKey, LineEnding};
+use rsa::sha2::Sha256;
+use rsa::RsaPrivateKey;
+
+// import some WASM runtime functions from the module `env`
+#[link(wasm_import_module = "env")]
+extern "C" {
+    fn _debug(s: &str) -> i32;
+}
+
+/// Allocate memory into the module's linear memory
+/// and return the offset to the start of the block.
+#[no_mangle]
+pub fn csr_malloc(len: usize) -> *mut u8 {
+    // create a new mutable buffer with capacity `len`
+    let mut buf = Vec::with_capacity(len);
+    // take a mutable pointer to the buffer
+    let ptr = buf.as_mut_ptr();
+    // take ownership of the memory block and
+    // ensure that its destructor is not
+    // called when the object goes out of scope
+    // at the end of the function
+    std::mem::forget(buf);
+    // return the pointer so the runtime
+    // can write data at this offset
+    return ptr;
+}
+
+/// Free memory from the module's linear memory
+#[no_mangle]
+pub unsafe fn csr_free(ptr: *mut u8, size: usize) {
+    let data = Vec::from_raw_parts(ptr, size, size);
+
+    std::mem::drop(data);
+}
+
+#[macro_export]
+macro_rules! println {
+    () => {
+        _debug("\n")
+    };
+    ($($arg:tt)*) => {{
+        let s = format!($($arg)*);
+        _debug(&s);
+    }};
+}
+
+
+//Using single return value since the multi return value is still buggy. See https://github.com/rust-lang/rust/issues/73755
+#[no_mangle]
+pub unsafe extern "C" fn csr_gen(priv_key: &[u8]) -> i64 {
+    let subject = match Name::from_str("CN=banzai.cloud") {
+        Ok(name) => name,
+        Err(err) => { println!("error parsing name: {}", err); return 0 },
+    };
+
+    let private_key = match RsaPrivateKey::from_pkcs8_der(priv_key) {
+        Ok(key) => key,
+        Err(err) => { println!("error parsing private key: {}", err); return 0 },
+    };
+    let signing_key = SigningKey::<Sha256>::new(private_key);
+    
+    let builder = match RequestBuilder::new(subject, &signing_key) {
+        Ok(builder) => builder,
+        Err(err) => { println!("error creating builder: {}", err); return 0 },
+    };
+    let cert_req = match builder.build() {
+        Ok(cert_req) => cert_req,
+        Err(err) => { println!("error building cert request: {}", err); return 0 },
+    };
+    let encoded_csr = match cert_req.to_pem(LineEnding::LF) {
+        Ok(encoded_csr) => encoded_csr,
+        Err(err) => { println!("error encoding cert request: {}", err); return 0 },
+    };
+
+    ((encoded_csr.as_ptr() as i64) << 32) | (encoded_csr.len() as i64)
+}
+
+fn main() {}
\ No newline at end of file