HandShaker | crack WPA/2 handshakes | Map library

I created a new spring boot project using the IntelliJ Idea's spring initializer and checked the Web/Spring reactive Web and the SQL/Spring data R2DBC dependencies.

I also added the the dependency to the R2DBC implementation for MySQL

We are trying to have client-server auth. The client and the server have 2 machines certificates signed by the same CA and Intermidiate CA. When tryng to initiate the handshake with javax.net.debug=ssl:handshake these are the logs after printing out the varoius certificates. The used protocol is TLS v.1.2 and the java is an OpenJDK 11

I have a long running websocket client implemented in java Spring reactor with Netty (spring-boot-starter-parent 2.5.3) targeting Binance ws api. According to specs, the weboscket channel is kept open 24 hours.

The websocket is unexpectedly and prematurely closed after around 3 minutes :

I have an endpoint which requires SSL authentication. I'm able to successfully post a request on that endpoint with:

curl --location --request POST 'https://someurl.click' --header 'some headers' --cert my_cert.pem

I need to create a Spring Boot application which POSTs a request to that endpoint using that certificate with RestTemplate. I've read that PEM certificates are not valid and I need to use p12 or JKS.

So I converted my certificate to p12 with:

openssl pkcs12 -export -in my_cert.pem -out my_cert.p12

And used it as a Trust Store in my Bean as suggested by several references (where trustStore points to the converted p12 certificate):

Scraping A Webpage With JSOUP and Given An SSL Error. Is This A Site Specific Issue? (JSOUP Works On Other Websites)

I'm trying to run a scrape, I run scrapes like this all the time, but this one failed. Normally I use jsoup to connect to a webpage, and then grab what I want on the page. This one appears to be trying to do an ssl handshake or something and failing.

I found this page with a similar issue, but, I think the op is having that issue on all jsoup scrapes, where mine is specific to this one website. https://www.strack.de/de/shop/?idm=1162&d=1&idmp=94&spb=MTQ7NzQ7MTI0OzEyMzY7 I have tried multiple pages on this site and all have the same issue. However, all other sites that I have tried don't have this issue at all and scrape normally.

I tried installing the latest version of java and restarting the pc, this didn't lead to the ssl connecting successfully. I also tried going onto Firefox and downloading the certification. That didn't seem to have the same pathway as described in the answer.

"more info" > "security" > "show certificate" > "details" > "export.."

I think this issue might be caused by a separate problem as the scraper works just fine on other websites. This is why I created this as a separate question as opposed to a comment on that one.

Here is what happened when I tried to download the cert. Instead of show certificate there is a view certificate, and it doesn't have the details option nor an export option. Trying to get the .cert file, no prompt

Am I doing something wrong that is prompting a handshake or is this some sort of functionality that disallows scraping on this website? I tried to scrape the pricing off of this webpage: https://www.strack.de/de/shop/?idm=1162&d=1&idmp=94&spb=MTQ7NzQ7MTI0OzEyMzY7

I used JSOUP to try to scrape this page. It gave me an error. When I googled it, it seems to be an error that people get when trying to connect to servers.

It gave me this error:

Exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153) at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:732) at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:707) at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:297) at org.jsoup.helper.HttpConnection.get(HttpConnection.java:286) at scrapetestforstack.de.ScrapeTestForStackDe.main(ScrapeTestForStackDe.java:81) Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387) at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) at sun.security.validator.Validator.validate(Validator.java:260) at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ... 15 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382) ... 21 more C:\Users\LeonardDME\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1 BUILD FAILED (total time: 0 seconds)

Here is the code that I am trying to do.

//Phase 3 Scrape The URL for Urls
Document doc = Jsoup.connect(URL).get();

I have an Apache CXF client that is connecting a SOAP service, and authenticating with mutual TLS. The client fails during the TLS Handshake because the service sends an empty list of client certificates to the server. I am testing this with self-signed certs, and I can prove that my server works with a curl request and with postman. I am pretty sure that the certificates are setup correctly, and I am sure that I am missing a config step in the CXF client.

Here is how I have my client setup

I'm trying to build a gRPC application with mutual authentication using c++. When I set the GRPC_SSL_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY option on the server, the client does not return it's certificate. The server shows the following error:

Please read the "Update" at the bottom. It seems to be a problem with the name of the controllers. Depending on the name the SSL-configuration is not applied.

The UserService of my spring application connects to an external server that uses a self-signed cert in development. I added the self-signed and valid cert to a java key store ./dev-truststore.jks and use this @Configuration:

In my app I use retrofit2(2.9.0) with OkHttp3(3.14.4). I want to add tls client certificate to all of my requests to some api. I've got the certificate in a .p12 file. I read the file, loaded into X509Certificate class then I used the .addTrustedCertificate(certificate) method. The certificate is correct I tried it using curl. Unfortunately when I run the code I get an exception.