Public key "pkcs8" must be PKCS#8 formatted string

[motoshifin]

Hi, I can already generate a signature w/ rsa key pair in pkcs8 format. Here's the reference

Here's my code to generate the signature

const fs = require("fs");
const jose = require("jose");

const test = async function () {
    const alg = "RS256";
    const pkcs8 = fs.readFileSync("./test/pkcs8.key", "utf8");
    const privateKey = await jose.importPKCS8(pkcs8, alg);

    const jws = await new jose.FlattenedSign(
        new TextEncoder().encode("detached payload example")
    )
        .setProtectedHeader({ alg })
        .sign(privateKey);

    console.log("jws: ", jws);
};
(async function () {
    await test();
})();

Problem is I can't verify it, error is saying my public key is not in pkcs8 format

TypeError: "pkcs8" must be PKCS#8 formatted string

const pbcs8 = fs.readFileSync("./test/publickey.crt", "utf8");
const publicKey = await jose.importPKCS8(pbcs8, alg);

const { payload, protectedHeader } = await jose.flattenedVerify(
    jws,
    publicKey
);

Is my key pair generation incorrect? How can I import a public key to verify a signature?

[panva]

How can I import a public key to verify a signature?

• Public Key Import (SPKI)
• Public Key Import (X.509 Certificate)