How to connect Android TV? Please help me

[locnvbetasoft]

https://github.com/Aymkdn/assistant-freebox-cloud/wiki/Google-TV-(aka-Android-TV)-Remote-Control-(v2)

[nhatha12368]

@locnvbetasoft I did the same as in the instructions you sent but I don't know why when I connect to Android TV using webSocket it goes into onFailure and shows the error that there are no trusted certificates

Do you have a github link for detailed instructions in java or kotlin on this issue? Thanks you very much.

[locnvbetasoft]

You must create a certificate that can use bouncycastle

public static X509Certificate generateX509V3Certificate(KeyPair pair, String name, Date notBefore, Date notAfter, BigInteger serialNumber) throws GeneralSecurityException { java.security.Security .addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

    org.bouncycastle.x509.X509V3CertificateGenerator certGen = new org.bouncycastle.x509.X509V3CertificateGenerator();
    X500Name dnName = new org.bouncycastle.asn1.x500.X500Name(name);
    X500Principal principal = new X500Principal(name);

    certGen.setSerialNumber(serialNumber);
    // certGen.setIssuerDN(dnName);
    // certGen.setSubjectDN(dnName); // note: same as issuer
    certGen.setIssuerDN(principal);
    certGen.setSubjectDN(principal);
    certGen.setNotBefore(notBefore);
    certGen.setNotAfter(notAfter);
    certGen.setPublicKey(pair.getPublic());
    certGen.setSignatureAlgorithm("SHA256WithRSAEncryption");

    certGen.addExtension(X509Extension.basicConstraints, true,
            new BasicConstraints(false));

    certGen.addExtension(X509Extension.keyUsage, true, new KeyUsage(
            KeyUsage.digitalSignature | KeyUsage.keyEncipherment
                    | KeyUsage.keyCertSign));
    certGen.addExtension(X509Extension.extendedKeyUsage, true,
            new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth));

    AuthorityKeyIdentifier authIdentifier = createAuthorityKeyIdentifier(
            pair.getPublic(), dnName, serialNumber);

    certGen.addExtension(X509Extension.authorityKeyIdentifier, true,
            authIdentifier);
    // certGen.addExtension(X509Extension.subjectKeyIdentifier, true,
    // new SubjectKeyIdentifier(pair.getPublic()));

    certGen.addExtension(X509Extension.subjectAlternativeName, false,
            new GeneralNames(new GeneralName(GeneralName.rfc822Name,
                    "googletv@.Device")));

    // This method is deprecated, but Android Eclair does not provide the
    // generate() methods.
    X509Certificate cert = certGen.generate(pair.getPrivate());
    return cert;
}

public static X509Certificate generateX509V3Certificate(KeyPair pair,
        String name) throws GeneralSecurityException {
    Calendar calendar = Calendar.getInstance();
    calendar.set(2009, 0, 1);
    Date notBefore = new Date(calendar.getTimeInMillis());
    calendar.set(2099, 0, 1);
    Date notAfter = new Date(calendar.getTimeInMillis());

    BigInteger serialNumber = BigInteger.valueOf(Math.abs(System
            .currentTimeMillis()));

    return generateX509V3Certificate(pair, name, notBefore, notAfter,
            serialNumber);
}

[nhatha12368]

@locnvbetasoft Are you Vietnamese? Can you send me the detailed content in this function? createAuthorityKeyIdentifier(pair.getPublic(), dnName, serialNumber);

[locnvbetasoft]

private static AuthorityKeyIdentifier createAuthorityKeyIdentifier(
        PublicKey publicKey, org.bouncycastle.asn1.x500.X500Name dnName,
        BigInteger serialNumber) {
    GeneralName genName = new GeneralName(dnName);
    SubjectPublicKeyInfo info;
    try {
        info = new SubjectPublicKeyInfo((ASN1Sequence) new ASN1InputStream(
                publicKey.getEncoded()).readObject());
    } catch (IOException e) {
        throw new RuntimeException("Error encoding public key");
    }
    return new AuthorityKeyIdentifier(info, new GeneralNames(genName),
            serialNumber);
}

here

[nhatha12368]

@locnvbetasoft Can you send me the code that uses this certificate? Thank you very much