[英]Generate X509Certificate from byte[]?
是否有可能从byte []生成java.security.cert.X509Certificate?
当然。
证书对象可以由CertificateFactory实例创建 - 特别是,配置为创建X509证书的实例。 这可以像这样创建:
CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
然后,您需要传递一个包含证书字节的InputStream。 这可以通过将字节数组包装在ByteArrayInputStream中来实现:
InputStream in = new ByteArrayInputStream(bytes);
X509Certificate cert = (X509Certificate)certFactory.generateCertificate(in);
你可以这样做:
X509Certificate certificate = signature.getKeyInfo().getX509Datas().get(0).getX509Certificates().get(0);
String lexicalXSDBase64Binary = certificate.getValue();
byte[] decoded = DatatypeConverter.parseBase64Binary(lexicalXSDBase64Binary);
CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
Certificate cert = certFactory.generateCertificate(new ByteArrayInputStream(decoded));
InputStream stream = null;
byte[] bencoded = javax.xml.bind.DatatypeConverter.parseBase64Binary(x509CertificateStr);
try {
CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
cert = (X509Certificate) certFactory.generateCertificate(stream);
} catch (java.security.cert.CertificateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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