无法将X509证书转换为Base64

Question

我有一个X509 Certificate,我想将其存储在一个MySQL DB而不是保存文件.因此,我认为最好将证书转换为base64并存储它.我完成了转换的前进和后退,但是我没有得到真正的结果.

我正在使用javax.security.cert.X509Certificate和导入org.apache.commons.codec.binary.Base64如下:

X509Certificate cert = X509Certificate.getInstance(new FileInputStream(certFile));
System.out.println("Vigencia: "+cert.getNotAfter());
System.out.println("Inicio: "+cert.getNotBefore());
String cert64 = bytes2String(Base64.encodeBase64(cert.toString().getBytes("UTF-8")));
System.out.println("Cert 64: "+ cert64);
String certRegreso = bytes2String(Base64.decodeBase64(cert64.getBytes()));
System.out.println("Cert Regreso: "+ certRegreso);
X509Certificate certNuevo = X509Certificate.getInstance(certRegreso.getBytes());

Answer 1

根据javadocs X509Certificate实现Serializable,为什么不使用更简单的解决方案并将其存储为字节数组？就像是:

ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(bos);   
out.writeObject(certificate);
byte[] data = bos.toByteArray(); 
bos.close();

现在只需将字节数组存储为blob.要重新创建它,您可以使用:

ByteArrayIntputSream bis = new ByteArrayInputStream(byteData);
ObjectInput in = new ObjectInputStream(bis);
X509Certificate cert = (X509Certificate) in.readObject(); 
bis.close();