/**
* Search a secret key ring collection for a secret key corresponding to keyID if it
* exists.
*
* @param pgpSec a secret key ring collection.
* @param keyID keyID we want.
* @param pass passphrase to decrypt secret key with.
* @return
* @throws PGPException
* @throws NoSuchProviderException
*/
internal static Org.BouncyCastle.Bcpg.OpenPgp.PgpPrivateKey FindSecretKey(Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKeyRingBundle pgpSec, long keyID, char[] pass)
{
Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKey pgpSecKey = pgpSec.GetSecretKey(keyID);
if (pgpSecKey == null)
{
return(null);
}
return(pgpSecKey.ExtractPrivateKey(pass));
}
/**
* A simple routine that opens a key ring file and loads the first available key
* suitable for signature generation.
*
* @param input stream to read the secret key ring collection from.
* @return a secret key.
* @throws IOException on a problem with using the input stream.
* @throws PGPException if there is an issue parsing the input stream.
*/
internal static Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKey ReadSecretKey(System.IO.Stream input)
{
Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKeyRingBundle pgpSec = new Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKeyRingBundle(
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.PgpSecretKeyRing keyRing in pgpSec.GetKeyRings())
{
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKey key in keyRing.GetSecretKeys())
{
if (key.IsSigningKey)
{
return(key);
}
}
}
throw new System.ArgumentException("Can't find signing key in key ring.");
}
/// <summary>
///
/// </summary>
/// <param name="publickKeyStream">对应gpg4win导出公钥的*.asc公钥文件（导出工具分为导出/）</param>
/// <param name="privateKeyStream">对应gpg4win导出私钥的*.gpg私钥文件（被密码加密）</param>
/// <param name="privateKeyPwd">*.gpg私钥文件的密码</param>
public GpgKeyPair(System.IO.Stream publickKeyStream, System.IO.Stream privateKeyStream, string privateKeyPwd)
{
this.PublickKey = ReadPublicKey(publickKeyStream);
var pkstream = Org.BouncyCastle.Bcpg.OpenPgp.PgpUtilities.GetDecoderStream(privateKeyStream);
var bundle = new Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKeyRingBundle(pkstream);
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKeyRing keyRing in bundle.GetKeyRings())
{
foreach (Org.BouncyCastle.Bcpg.OpenPgp.PgpSecretKey key in keyRing.GetSecretKeys())
{
if (key?.IsSigningKey ?? false)
{
this.PrivateKeySecreted = key;
}
}
}
if (this.PrivateKeySecreted == null)
{
throw new ArgumentException("私钥数据有问题,没有找到公钥");
}
this.PrivateKey = this.PrivateKeySecreted.ExtractPrivateKey(privateKeyPwd.ToCharArray());
}
