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Alex Rivera
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I have file.pfx file and also have a private key. How can I read the certificate in file.pfx in Java? I have used this code: import java.security.*; import java.security.cert.Certificate; import java.security.cert.X509Certificate; import java.security.cert.CertificateException; import javax.crypto.SecretKey; import javax.security.auth.callback.*; //These packages I have used. public String readFile(String fn) { String thisLine, ret = ""; KeyStore ks = KeyStore.getInstance("pkcs12", "SunJSSE"); ks.load(new FileInputStream(fn),"password".toCharArray()); try { Key key = ks.getKey("1", "password".toCharArray()); Certificate[] cc = ks.getCertificateChain("1"); X509Certificate certificate1 = (X509Certificate) cc[0];//Here it throws java.lang.NullPointerException ret += certificate1.getNotAfter(); ret += certificate1.getNotBefore(); } catch(Exception e) { ret = "Cannot load, exception!"; } return ret; }
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