How to instantiate javax.security.X509Certficate object from a p12 certificate (contains certificate + private key)
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26-09-2019 - |
Question
X509Certificate is only instantiatable using the contents of a certificate (.cer file). How to instantiate this object using a .p12 file that contains both the certificate and the private key?
Solution
Here is what you need:
InputStream inStream = new FileInputStream("c:/certificate.p12");
KeyStore ks = KeyStore.getInstance("PKCS12");
ks.load(inStream, "password".toCharArray());
String alias = ks.aliases().nextElement();
certificate = (X509Certificate) ks.getCertificate(alias);
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