}

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#isPreferredMech(org.bouncycastle.asn1.ASN1ObjectIdentifier)
     */
    @Override
    public boolean isPreferredMech(final ASN1ObjectIdentifier mechanism) {
        return this.auth.isPreferredMech(mechanism);
    }

    @Override
    public boolean isEstablished() {
        return this.isEstablished;
    }

     *
     * @param mechanism the mechanism to check
     * @return whether the given mechanism is the preferred one for this credential
     */
    public boolean isPreferredMech(ASN1ObjectIdentifier mechanism) {
        return NtlmContext.NTLMSSP_OID.equals(mechanism);
    }

    /**
     * Computes the 24 byte ANSI password hash given the 8 byte server challenge.
     *