How does a ROOT CA verify a signature?

Your server creates a key pair, consisting of a private and a public key. The server never gives out the private key, of course, but everyone may obtain a copy of the public key. The public key is embedded within a certificate container format (X.509). This container consists of meta information related to the wrapped … Read more

Self-signed SSL Cert or CA? [closed]

There’s a common misconception that self-signed certificates are inherently less secure than those sold by commercial CA’s like GoDaddy and Verisign, and that you have to live with browser warnings/exceptions if you use them; this is incorrect. If you securely distribute a self-signed certificate (or CA cert, as bobince suggested) and install it in the … Read more

why doesn’t java send the client certificate during SSL handshake?

It’s possible that you may have imported the intermediate CA certificate into the keystore without associating it with the entry where you have your client certificate and its private key. You should be able to see this using keytool -v -list -keystore store.jks. If you only get one certificate per alias entry, they’re not together. … Read more

npm add root CA

You can point npm to a cafile npm config set cafile /path/to/cert.pem You can also configure ca string(s) directly. npm config set ca “cert string” ca can be an array of cert strings too. In your .npmrc: ca[]=”cert 1 base64 string” ca[]=”cert 2 base64 string” The npm config commands above will persist the relevant config … Read more

Does Java support Let’s Encrypt certificates?

[Update 2016-06-08: According to https://bugs.openjdk.java.net/browse/JDK-8154757 the IdenTrust CA will be included in Oracle Java 8u101.] [Update 2016-08-05: Java 8u101 has been released and does indeed include the IdenTrust CA: release notes] Does Java support Let’s Encrypt certificates? Yes. The Let’s Encrypt certificate is just a regular public key certificate. Java supports it (according to Let’s … Read more

accepting HTTPS connections with self-signed certificates

The first thing you need to do is to set the level of verification. Such levels is not so much: ALLOW_ALL_HOSTNAME_VERIFIER BROWSER_COMPATIBLE_HOSTNAME_VERIFIER STRICT_HOSTNAME_VERIFIER Although the method setHostnameVerifier() is obsolete for new library apache, but for version in Android SDK is normal. And so we take ALLOW_ALL_HOSTNAME_VERIFIER and set it in the method factory SSLSocketFactory.setHostnameVerifier(). Next, … Read more

HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK

It’s a pretty common problem in Windows. You need just to set cacert.pem to curl.cainfo. Since PHP 5.3.7 you could do: download https://curl.se/ca/cacert.pem and save it somewhere. update php.ini — add curl.cainfo = “PATH_TO/cacert.pem” Otherwise you will need to do the following for every cURL resource: curl_setopt ($ch, CURLOPT_CAINFO, “PATH_TO/cacert.pem”);

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