diff --git a/pgpainless-core/src/main/java/org/pgpainless/key/protection/CachingSecretKeyRingProtector.java b/pgpainless-core/src/main/java/org/pgpainless/key/protection/CachingSecretKeyRingProtector.java
index 5ad6a5e1..009831b6 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/key/protection/CachingSecretKeyRingProtector.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/key/protection/CachingSecretKeyRingProtector.java
@@ -26,6 +26,7 @@ import org.bouncycastle.openpgp.PGPKeyRing;
 import org.bouncycastle.openpgp.PGPPublicKey;
 import org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor;
 import org.bouncycastle.openpgp.operator.PBESecretKeyEncryptor;
+import org.pgpainless.key.OpenPgpV4Fingerprint;
 import org.pgpainless.key.protection.passphrase_provider.SecretKeyPassphraseProvider;
 import org.pgpainless.util.Passphrase;
 
@@ -82,6 +83,10 @@ public class CachingSecretKeyRingProtector implements SecretKeyRingProtector, Se
         addPassphrase(key.getKeyID(), passphrase);
     }
 
+    public void addPassphrase(@Nonnull OpenPgpV4Fingerprint fingerprint, @Nullable Passphrase passphrase) {
+        addPassphrase(fingerprint.getKeyId(), passphrase);
+    }
+
     /**
      * Remove a passphrase from the cache.
      * The passphrase will be cleared and then removed.