public static Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKey ReadPublicKey(System.IO.Stream publickKeyStream)
{
var pkstream = Org.BouncyCastle.Bcpg.OpenPgp.PgpUtilities.GetDecoderStream(publickKeyStream);
var bundle = new Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKeyRingBundle(pkstream);
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKeyRing keyRing in bundle.GetKeyRings())
{
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKey key in keyRing.GetPublicKeys())
{
if (key?.IsEncryptionKey ?? false)
{
return(key);
}
}
}
throw new ArgumentException("公钥数据有问题,没有找到公钥");
}
/**
* A simple routine that opens a key ring file and loads the first available key
* suitable for encryption.
*
* @param input
* @return
* @throws IOException
* @throws PGPException
*/
internal static Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKey ReadPublicKey(System.IO.Stream input)
{
Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKeyRingBundle pgpPub = new Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKeyRingBundle(
Org.BouncyCastle.Bcpg.OpenPgp.PgpUtilities.GetDecoderStream(input));
//
// we just loop through the collection till we find a key suitable for encryption, in the real
// world you would probably want to be a bit smarter about this.
//
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKeyRing keyRing in pgpPub.GetKeyRings())
{
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpPublicKey key in keyRing.GetPublicKeys())
{
if (key.IsEncryptionKey)
{
return(key);
}
}
}
throw new System.ArgumentException("Can't find encryption key in key ring.");
}