Unable to parse KeyObject for purpose of signing JWT with an EC private key. about jose HOT 6 CLOSED

This is your key's structure. The library expects it to be this, i.e. having the publicKey member.

I have a fix for this for Node runtimes >= 12.0.0. I can't fix this for ^10.13.0 because i lack the functionality to compute the public key out of a private one and the extra code needed does seem like an overkill when all a person needs is to use lts/12 runtime.

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I think my code doesn’t account for EC private keys that don’t include the public key in them.

I’ll see what I can do, in the meantime, can you post the command that generated this key?

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I was trying out some openssl commands to generate a private key that does not have a public key embedded. Tried this:

openssl ecparam -name prime256v1 -genkey -noout -out key.pem

I am searching for a way to extra only the private key part from here.

PS: The library works fine with the key embedded with the public key

I generally generate the KeyPair using the Java security library:

public static KeyPair generateEcKeyPair() {
        String name = "prime256v1";
        try {
            KeyPairGenerator generator = KeyPairGenerator.getInstance("EC");
            ECGenParameterSpec spec = new ECGenParameterSpec(name);
            generator.initialize(spec, new SecureRandom());
            return generator.generateKeyPair();
        } catch (Exception exp) {
           // Your code
        }
    }

Once you get the key pair, you can access the private key separately and extract the base64 encoded format using Java's util functions.

@panva

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PS: The library works fine with the key embedded with the public key

I know.

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Thanks a lot @panva fo your quick support. :)

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