X-Git-Url: https://code.wpia.club/?p=gigi.git;a=blobdiff_plain;f=src%2Fclub%2Fwpia%2Fgigi%2FdbObjects%2FCertificate.java;h=a97ed158d318633a4cd82ede3b92378c72693f3b;hp=61fd7d341a11d0a07c4329a532d93a2eeb6c062f;hb=7d8ec14b31b08647465fe73c48218f0afa149b09;hpb=77fa99471ddad0dfc5c039829498fb973fbf341f

diff --git a/src/club/wpia/gigi/dbObjects/Certificate.java b/src/club/wpia/gigi/dbObjects/Certificate.java
index 61fd7d34..a97ed158 100644
--- a/src/club/wpia/gigi/dbObjects/Certificate.java
+++ b/src/club/wpia/gigi/dbObjects/Certificate.java
@@ -4,6 +4,9 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.math.BigInteger;
 import java.security.GeneralSecurityException;
+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;
@@ -16,6 +19,8 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Map.Entry;
 
+import javax.xml.bind.DatatypeConverter;
+
 import club.wpia.gigi.GigiApiException;
 import club.wpia.gigi.database.DBEnum;
 import club.wpia.gigi.database.GigiPreparedStatement;
@@ -662,4 +667,18 @@ public class Certificate implements IdCachable {
         }
         return new BigInteger(serial, 16);
     }
+
+    public String getFingerprint(String algorithm) throws IOException, GeneralSecurityException, GigiApiException {
+        X509Certificate certx = cert();
+        return getFingerprint(certx, algorithm);
+    }
+
+    private static String getFingerprint(X509Certificate cert, String algorithm) throws NoSuchAlgorithmException, CertificateEncodingException {
+        MessageDigest md = MessageDigest.getInstance(algorithm);
+        byte[] der = cert.getEncoded();
+        md.update(der);
+        byte[] digest = md.digest();
+        String digestHex = DatatypeConverter.printHexBinary(digest);
+        return digestHex.toLowerCase();
+    }
 }