<script src="../include.js"></script>
<script>
    asyncTest(async done => {
        const encoder = new TextEncoder();
        const message = "Hello friends";
        const encodedMessage = encoder.encode(message);

        const format = "raw";
        const keyData = encodedMessage;
        const importAlgorithm = {
            name: "PBKDF2",
        };
        const extractable = false;
        const keyUsages = ["deriveBits", "deriveKey"];
        const keyMaterial = await window.crypto.subtle.importKey(
            format,
            keyData,
            importAlgorithm,
            extractable,
            keyUsages
        );

        const salt = encodedMessage;
        const iterations = 100000;
        const hash = "SHA-256";
        const derivationAlgorithm = {
            name: "PBKDF2",
            salt,
            iterations,
            hash,
        };
        const length = 256;
        const derivedBits = await window.crypto.subtle.deriveBits(
            derivationAlgorithm,
            keyMaterial,
            length
        );

        function arrayBufferToBase64(buffer) {
            return btoa(String.fromCharCode.apply(null, new Uint8Array(buffer)));
        }

        const expectedResult = "WHYex7U9vTCisuffYpbNHR+Gbto/edldB+P+WB6RNIg=";
        const actualResult = arrayBufferToBase64(derivedBits);

        if (expectedResult == actualResult) {
            println("Derived bits OK");
        } else {
            println("Derived bits FAIL");
        }

        done();
    });
</script>