如何从 p12 证书(包含证书 + 私钥)实例化 javax.security.X509Certficate 对象 [英] How to instantiate javax.security.X509Certficate object from a p12 certificate (contains certificate + private key)

问题描述

X509Certificate 只能使用证书(.cer 文件)的内容进行实例化.如何使用包含证书和私钥的 .p12 文件实例化此对象?

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?

推荐答案

您需要的是:

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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