introduce PromoteKeyOperation to create dummy secret from public keys

1 files changed, 11 insertions, 0 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
index 85ef3eaa4..b8379f007 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
@@ -18,9 +18,11 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
+import org.spongycastle.bcpg.S2K;
 import org.spongycastle.openpgp.PGPObjectFactory;
 import org.spongycastle.openpgp.PGPPublicKey;
 import org.spongycastle.openpgp.PGPPublicKeyRing;
+import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 
@@ -94,4 +96,13 @@ public class CanonicalizedPublicKeyRing extends CanonicalizedKeyRing {
         });
     }
 
+    /** Create a dummy secret ring from this key */
+    public UncachedKeyRing createDummySecretRing () {
+
+        PGPSecretKeyRing secRing = PGPSecretKeyRing.constructDummyFromPublic(getRing(),
+                S2K.GNU_PROTECTION_MODE_NO_PRIVATE_KEY);
+        return new UncachedKeyRing(secRing);
+
+    }
+
 }
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