證書的DER encoding的SHA-1散列是.NET正在獲得的內容X509Certificate2.Thumbprint。
作爲對remarks on MSDN注意到:
指紋是使用SHA1算法動態地生成的,並且不與證書中物理存在。由於指紋是證書的唯一值,因此它通常用於在證書存儲中查找特定的證書。
Java的標準庫不直接提供指紋,但你可以這樣說:
DatatypeConverter.printHexBinary(
MessageDigest.getInstance("SHA-1").digest(
cert.getEncoded())).toLowerCase();
下面是一個使用方便到達PEM文件一個完整的工作例如:
Create stackoverflow.crt.pem:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
創建X509.java:
import javax.xml.bind.DatatypeConverter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
public final class X509 {
public static void main(String[] args)
throws FileNotFoundException, CertificateException, NoSuchAlgorithmException {
FileInputStream is = new FileInputStream(args[0]);
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
X509Certificate cert = (X509Certificate) certificateFactory.generateCertificate(is);
String thumbprint = getThumbprint(cert);
System.out.println(thumbprint);
}
private static String getThumbprint(X509Certificate cert)
throws NoSuchAlgorithmException, CertificateEncodingException {
MessageDigest md = MessageDigest.getInstance("SHA-1");
byte[] der = cert.getEncoded();
md.update(der);
byte[] digest = md.digest();
String digestHex = DatatypeConverter.printHexBinary(digest);
return digestHex.toLowerCase();
}
}
與Java 8編譯程序:
javac X509.java
或Java 9 - 由於模塊化JDK/JPMS - DataTypeConverter不java.base,但java.xml.bind,所以你需要在你的構建過程中明確依賴它:
javac --add-modules java.xml.bind X509.java
否則,在Java的9,你這個當您嘗試構建它:
X509.java:3: error: package javax.xml.bind is not visible
import javax.xml.bind.DatatypeConverter;
^
(package javax.xml.bind is declared in module java.xml.bind, which is not in the module graph)
1 error
與Java 8運行:
java X509 stackoverflow.crt.pem
在Java 9 - 由於到模塊化JDK/JPMS - DataTypeConverter不在java.base,但是java.xml。結合,所以你需要運行您的程序時,明確依賴它:
java --add-modules java.xml.bind X509 stackoverflow.crt.pem
否則,在Java的9,你這個當您嘗試運行它:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter
at X509.getThumbPrint(X509.java:29)
at X509.main(X509.java:19)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.DatatypeConverter
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 2 more
得到預期輸出:
47adb03649a2eb18f63ffa29790818349a99cab7
此Java演示(URLConnection的)程序連接到HTTPS URL和打印/計算各種指紋,包括引腳SHA256,滑雪和拇指指模:https://github.com/ecki/JavaCryptoTest/ blob/master/src/main/java/net/eckenfels/test/ssl/UrlInspect.java – eckes 2016-03-23 01:58:27