keysDeclaredGlobally.add(keyId);
    }

    public boolean doesNotDeclareKeyGlobally(String keyId) {
        return !keysDeclaredGlobally.contains(keyId);
    }

    public boolean hasArtifactLevelKeys() {
        return !trustedKeys.equals(keysDeclaredGlobally);
    }

    public Set<String> getArtifactLevelKeys() {
        Set<String> keys = Sets.newHashSet(trustedKeys);