func (r *nullReader) Read(b []byte) (int, error) {
	return len(b), nil
}

// Test get request auth type.
func TestGetRequestAuthType(t *testing.T) {
	type testCase struct {
		req   *http.Request
		authT authType
	}
	nopCloser := io.NopCloser(io.LimitReader(&nullReader{}, 1024))
	testCases := []testCase{
		// Test case - 1
		// Check for generic signature v4 header.
		{
			req: &http.Request{
				URL: &url.URL{

            ASN1Integer authType = ASN1Util.as(ASN1Integer.class, ASN1Util.as(ASN1TaggedObject.class, authElement, 0));
            DEROctetString authData = ASN1Util.as(DEROctetString.class, ASN1Util.as(ASN1TaggedObject.class, authElement, 1));

            this.authorizations.addAll(KerberosAuthData.parse(authType.getValue().intValue(), authData.getOctets(), keys));
        }
    }

    /**

      object : X509TrustManager {
        override fun checkClientTrusted(
          chain: Array<out X509Certificate>?,
          authType: String?,
        ) {}

        override fun checkServerTrusted(
          chain: Array<out X509Certificate>?,
          authType: String?,
        ) {}

        override fun getAcceptedIssuers(): Array<X509Certificate> = arrayOf()
      }

    val sslContext =

        ASN1EncodableVector authVector = new ASN1EncodableVector();
        ASN1EncodableVector elementVector = new ASN1EncodableVector();
        elementVector.add(new DERTaggedObject(0, new ASN1Integer(1))); // authType
        elementVector.add(new DERTaggedObject(1, new DEROctetString(new byte[] { 0x01, 0x02 }))); // authData
        authVector.add(new DERSequence(elementVector));

	Objects      []ObjectVersion  `json:",omitempty"` // Only set during MultiObject delete handler.
	Cred         auth.Credentials `json:"-"`
	Region       string           `json:"-"`
	Owner        bool             `json:"-"`
	AuthType     string           `json:"-"`
	tags         []KeyVal         // Any additional info not accommodated by above fields
	sync.RWMutex
}

// NewReqInfo :

                    ASN1Integer authType = ASN1Util.as(ASN1Integer.class, ASN1Util.as(ASN1TaggedObject.class, authElement, 0));
                    DEROctetString authData = ASN1Util.as(DEROctetString.class, ASN1Util.as(ASN1TaggedObject.class, authElement, 1));

                    this.userAuthorizations.addAll(KerberosAuthData.parse(authType.getValue().intValue(), authData.getOctets(), keys));
                }

      ],
      "X-Amz-Content-Sha256": [
        "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
      ],
      "X-Amz-Date": [
        "20220507T183141Z"
      ],
      "authType": [
        "REST-HEADER"
      ],
      "principaltype": [
        "Account"
      ],
      "signatureversion": [
        "AWS4-HMAC-SHA256"
      ],
      "userid": [
        "minio"

        @Throws(CertificateException::class)
        override fun checkClientTrusted(
          chain: Array<X509Certificate>,
          authType: String,
        ) = throw CertificateException()

        override fun checkServerTrusted(
          chain: Array<X509Certificate>,
          authType: String,
        ) = throw AssertionError()

        override fun getAcceptedIssuers(): Array<X509Certificate> = throw AssertionError()

     *
     * ```java
     *    @SuppressWarnings("unused")
     *    public List<X509Certificate> checkServerTrusted(
     *        X509Certificate[] chain, String authType, String host) throws CertificateException {
     *    }
     * ```
     *
     * This method works like [X509TrustManager.checkServerTrusted] but it receives the hostname of

    override fun checkClientTrusted(
      chain: Array<X509Certificate>,
      authType: String,
    ) {
      calls.add("checkClientTrusted " + certificatesToString(chain))
    }

    override fun checkServerTrusted(
      chain: Array<X509Certificate>,
      authType: String,
    ) {
      calls.add("checkServerTrusted " + certificatesToString(chain))
    }