/// <summary>
/// Search a secret key ring collection for a secret key corresponding to keyID if it exists.
/// </summary>
/// <param name="pgpSec">A secret key ring collection</param>
/// <param name="keyID">The keyID we want.</param>
/// <param name="password">The passphrase to decrypt secret key with.</param>
/// <returns>The private key.</returns>
private Key.Bcpg.OpenPgp.PgpPrivateKey FindSecretKey(Key.Bcpg.OpenPgp.PgpSecretKeyRingBundle pgpSec, long keyID, char[] password)
{
// Get the secret key from the unique key id.
Key.Bcpg.OpenPgp.PgpSecretKey pgpSecKey = pgpSec.GetSecretKey(keyID);
// If a secret key does not exist.
if (pgpSecKey == null)
{
return(null);
}
// Extract the private key.
return(pgpSecKey.ExtractPrivateKey(password));
}
