1 files changed, 5 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
index c5403e054..57a71b084 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
@@ -38,6 +38,7 @@ import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Algorithm;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Curve;
 import org.sufficientlysecure.keychain.util.Log;
 
+import java.nio.ByteBuffer;
 import java.security.DigestException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -249,6 +250,10 @@ public class KeyFormattingUtils {
         return hexString;
     }
 
+    public static long convertFingerprintToKeyId(byte[] fingerprint) {
+        return ByteBuffer.wrap(fingerprint, 12, 8).getLong();
+    }
+
     /**
      * Makes a human-readable version of a key ID, which is usually 64 bits: lower-case, no
      * leading 0x, space-separated quartets (for keys whose length in hex is divisible by 4)