本文介绍了Bouncycastle：X509CertificateHolder到X509Certificate？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
在r146之前的版本中，可以直接创建 X509Certificate 对象。
现在API已经被弃用，新的API只能提供 X509CertificateHolder 对象。
In versions prior to r146 it was possible to create X509Certificate objects directly.Now that API is deprecated and the new one only deliveres a X509CertificateHolder object.
一种将 X509CertificateHolder 转换为 X509Certificate 的方法。
推荐答案
我会回答自己的问题，但不会删除它，同样的问题：
I will answer to my own questions, but not delete it, in case someone else got the same problems:
return new JcaX509CertificateConverter().setProvider( "BC" )
.getCertificate( certificateHolder );
而对于属性证书：
return new X509V2AttributeCertificate( attributeCertificateHolder.getEncoded() );
不好，因为它是编码和解码，但它工作。
Not nice, as it is encoding and decoding, but it works.
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