从证书获取公钥 [英] Obtaining public key from certificate
本文介绍了从证书获取公钥的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试使用以下方法获取证书的公钥:
I'm trying to obtain the public key of a Certificate using the method:
FileInputStream fin = new FileInputStream("PathToCertificate");
CertificateFactory f = CertificateFactory.getInstance("X.509");
X509Certificate certificate = (X509Certificate)f.generateCertificate(fin);
PublicKey pk = certificate.getPublicKey();
但我收到以下错误:
Exception in thread "main" java.lang.ClassCastException: sun.security.x509.X509CertImpl cannot be cast to codec.x509.X509Certificate
at sergas_testcertificates.Main.main(Main.java:54)
有人知道这个错误是什么吗?
Does anyone know what this error is about?
提前感谢
推荐答案
X509Certificate 。
您可能正在寻找 java.security.cert.X509Certificate
code> codec.x509.X509Certificate 。
You are likely looking for java.security.cert.X509Certificate
not codec.x509.X509Certificate
.
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