/// <summary>
/// Return a new bundle containing the contents of the passed in bundle with
/// the passed in public key ring removed.
/// </summary>
/// <param name="bundle">The <c>PgpPublicKeyRingBundle</c> the key ring is to be removed from.</param>
/// <param name="publicKeyRing">The key ring to be removed.</param>
/// <returns>A new <c>PgpPublicKeyRingBundle</c> not containing the passed in key ring.</returns>
/// <exception cref="ArgumentException">If the keyId for the passed in key ring is not present.</exception>
public static PgpPublicKeyRingBundle RemovePublicKeyRing(
PgpPublicKeyRingBundle bundle,
PgpPublicKeyRing publicKeyRing)
{
long key = publicKeyRing.GetPublicKey().KeyId;
if (!bundle.pubRings.Contains(key))
{
throw new ArgumentException("Bundle does not contain a key with a keyId for the passed in ring.");
}
IDictionary newPubRings = Platform.CreateHashtable(bundle.pubRings);
IList newOrder = Platform.CreateArrayList(bundle.order);
newPubRings.Remove(key);
newOrder.Remove(key);
return(new PgpPublicKeyRingBundle(newPubRings, newOrder));
}
/// <summary>
/// A simple routine that opens a key ring file and loads the first available key suitable for encryption.
/// </summary>
/// <param name="publicKey">The public key.</param>
/// <returns>The public key data.</returns>
private Key.Bcpg.OpenPgp.PgpPublicKey ReadPublicKey(System.IO.Stream publicKey)
{
Key.Bcpg.OpenPgp.PgpPublicKeyRingBundle pgpPub = new Key.Bcpg.OpenPgp.PgpPublicKeyRingBundle(
Key.Bcpg.OpenPgp.PgpUtilities.GetDecoderStream(publicKey));
// Loop through the collection till we find a key suitable for encryption
foreach (Key.Bcpg.OpenPgp.PgpPublicKeyRing keyRing in pgpPub.GetKeyRings())
{
foreach (Key.Bcpg.OpenPgp.PgpPublicKey key in keyRing.GetPublicKeys())
{
if (key.IsEncryptionKey)
{
// Return the key.
return(key);
}
}
}
// If no key data has been found.
throw new ArgumentException("Can't find encryption key in key ring.");
}
