fun signDataTest(file: File): ByteArray? {
        System.setProperty("com.sun.security.enableCRLDP", "true")
        System.setProperty("com.ibm.security.enableCRLDP", "true")
        val fileData = Files.readAllBytes(file.toPath())
        val alias = "proud_sosow"
        val pass = "123"
        val keyStore = KeyStore.getInstance(JCSP.HD_STORE_NAME, JCSP.PROVIDER_NAME)
        keyStore.load(null, null)
        val certificate = keyStore.getCertificate(alias) as X509Certificate
        val privateKey = keyStore.getKey(alias, pass.toCharArray()) as PrivateKey
        val chain: MutableList<X509Certificate> = mutableListOf()

        var holderList : MutableList<X509CertificateHolder> = ArrayList<X509CertificateHolder>()
        for (certificate in keyStore.getCertificateChain(alias)) {
            Log.i("@@@@","Certificate is $certificate")
            chain.add(certificate as X509Certificate)
        }
        for (cert in chain) {
            holderList.add(X509CertificateHolder(cert.encoded))
            Log.i("@@@@" , X509CertificateHolder(cert.encoded).encoded.toString())
        }
        val cAdESSignature = CAdESSignature()
        val signatureStream = ByteArrayOutputStream()
        cAdESSignature.open(signatureStream)
        cAdESSignature.certificateStore = CollectionStore(holderList)
        cAdESSignature.update(fileData)
        //cAdESSignature.addSigner(JCSP.PROVIDER_NAME, null, null, privateKey, chain, CAdESType.CAdES_BES, "http://testca.cryptopro.ru/tsp/", false)
        cAdESSignature.addSigner(JCSP.PROVIDER_NAME, null, null, privateKey, chain, CAdESType.CAdES_BES, null, false, null, null, null, true)
        cAdESSignature.close()
        signatureStream.close()
        return signatureStream.toByteArray()
    }