feat: add publickey.ts

single-scripts/publickey.ts

@@ -0,0 +1,35 @@
+#!/usr/bin/env -S deno run --allow-env
+
+// Reference:
+// - https://docs.deno.com/examples/command_line_arguments/
+// - https://docs.deno.com/api/node/crypto/~/X509Certificate#property_issuercertificate
+// - https://docs.deno.com/api/node/crypto/~/createPublicKey
+
+const {X509Certificate, createPublicKey} = await import('node:crypto');
+
+if (Deno.args.length === 0) {
+    console.log("Usage: certificate.ts <certificate>");
+    Deno.exit(1);
+}
+
+// function tryParseCertificate() {
+//     const x509 = new X509Certificate(Deno.args[0]);
+//
+//     const exportedJwk = x509.publicKey.export({format: "jwk"});
+//     console.log(JSON.stringify(exportedJwk, null, 4));
+//
+//     console.log(x509.publicKey.export({format: "pem", type: "spki"}));
+// }
+
+try {
+    const publicKey = createPublicKey(Deno.args[0]);
+
+    console.log('JWK:');
+    const exportedJwk = publicKey.export({format: "jwk"});
+    console.log(JSON.stringify(exportedJwk, null, 4));
+    console.log();
+    console.log("PEM:");
+    console.log(publicKey.export({format: "pem", type: "spki"}));
+} catch (e) {
+    console.error(`Parse certificate or public key failed: ${e}`);
+}