diff --git a/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java b/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
index a86d8e9b..21020dc4 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
@@ -64,20 +64,6 @@ public class BCUtil {
         return new PGPSecretKeyRingCollection(Arrays.asList(rings));
     }
 
-    public static PGPPublicKeyRing publicKeyRingFromSecretKeyRing(@Nonnull PGPSecretKeyRing secretKeys)
-            throws PGPException, IOException {
-        ByteArrayOutputStream buffer = new ByteArrayOutputStream(512);
-        for (PGPSecretKey secretKey : secretKeys) {
-            PGPPublicKey publicKey = secretKey.getPublicKey();
-            if (publicKey != null) {
-                publicKey.encode(buffer, false);
-            }
-        }
-        KeyFingerPrintCalculator fingerprintCalculator = ImplementationFactory.getInstance().getKeyFingerprintCalculator();
-
-        return new PGPPublicKeyRing(buffer.toByteArray(), fingerprintCalculator);
-    }
-
     /*
     PGPXxxKeyRingCollection -> PGPXxxKeyRing
      */
diff --git a/pgpainless-sop/src/main/java/org/pgpainless/sop/commands/ExtractCert.java b/pgpainless-sop/src/main/java/org/pgpainless/sop/commands/ExtractCert.java
index 6814d630..30ec1043 100644
--- a/pgpainless-sop/src/main/java/org/pgpainless/sop/commands/ExtractCert.java
+++ b/pgpainless-sop/src/main/java/org/pgpainless/sop/commands/ExtractCert.java
@@ -15,19 +15,19 @@
  */
 package org.pgpainless.sop.commands;
 
+import static org.pgpainless.sop.Print.err_ln;
+import static org.pgpainless.sop.Print.print_ln;
+
 import java.io.IOException;
 
 import org.bouncycastle.openpgp.PGPException;
 import org.bouncycastle.openpgp.PGPPublicKeyRing;
 import org.bouncycastle.openpgp.PGPSecretKeyRing;
 import org.pgpainless.PGPainless;
+import org.pgpainless.key.util.KeyRingUtils;
 import org.pgpainless.sop.Print;
-import org.pgpainless.util.BCUtil;
 import picocli.CommandLine;
 
-import static org.pgpainless.sop.Print.err_ln;
-import static org.pgpainless.sop.Print.print_ln;
-
 @CommandLine.Command(name = "extract-cert",
         description = "Extract a public key certificate from a secret key from standard input")
 public class ExtractCert implements Runnable {
@@ -41,7 +41,7 @@ public class ExtractCert implements Runnable {
     public void run() {
         try {
             PGPSecretKeyRing secretKeys = PGPainless.readKeyRing().secretKeyRing(System.in);
-            PGPPublicKeyRing publicKeys = BCUtil.publicKeyRingFromSecretKeyRing(secretKeys);
+            PGPPublicKeyRing publicKeys = KeyRingUtils.publicKeyRingFrom(secretKeys);
 
             print_ln(Print.toString(publicKeys.getEncoded(), armor));
         } catch (IOException | PGPException e) {