public static tbl_PrivateKey CreatePrivKey(IConfiguration conf, IUnitOfWork uow, tbl_User user,
SshHostKeyAlgorithm keyAlgo, int privKeySize, string privKeyPass, SignatureHashAlgorithm sigAlgo, string comment)
{
var callPath = $"{MethodBase.GetCurrentMethod().DeclaringType.Name}.{MethodBase.GetCurrentMethod().Name}";
var privId = Guid.NewGuid();
var pubId = Guid.NewGuid();
var privStream = new MemoryStream();
var pubStream = new MemoryStream();
var keyPair = SshPrivateKey.Generate(keyAlgo, privKeySize);
keyPair.Save(privStream, privKeyPass, SshPrivateKeyFormat.Pkcs8);
keyPair.SavePublicKey(pubStream, SshPublicKeyFormat.Pkcs8);
var privKey = uow.PrivateKeys.Create(
new tbl_PrivateKey
{
Id = privId,
PublicKeyId = pubId,
IdentityId = user.IdentityId,
KeyValue = Encoding.ASCII.GetString(privStream.ToArray()),
KeyAlgo = keyPair.KeyAlgorithm.ToString(),
KeyPass = AES.EncryptString(privKeyPass, conf["Databases:AuroraSecret"]),
KeyFormat = SshPrivateKeyFormat.Pkcs8.ToString(),
Enabled = true,
Deletable = true,
Created = DateTime.Now,
LastUpdated = null,
});
Log.Information($"'{callPath}' '{user.IdentityAlias}' private key algo {keyPair.KeyAlgorithm} sig {keyPair.Fingerprint.ToString(sigAlgo, false)}" +
$"{Environment.NewLine}{privKey.KeyValue}");
var pubKey = uow.PublicKeys.Create(
new tbl_PublicKey
{
Id = pubId,
PrivateKeyId = privId,
IdentityId = user.IdentityId,
KeyValue = Encoding.ASCII.GetString(pubStream.ToArray()),
KeyAlgo = keyPair.KeyAlgorithm.ToString(),
KeyFormat = SshPublicKeyFormat.Pkcs8.ToString(),
SigValue = keyPair.Fingerprint.ToString(sigAlgo, false),
SigAlgo = sigAlgo.ToString(),
Comment = comment,
Enabled = true,
Deletable = true,
Created = DateTime.Now,
LastUpdated = null,
});
Log.Information($"'{callPath}' '{user.IdentityAlias}' public key algo {keyPair.KeyAlgorithm} sig {keyPair.Fingerprint.ToString(sigAlgo, false)}" +
$"{Environment.NewLine}{pubKey.KeyValue}");
uow.Commit();
return(privKey);
}
public static void CheckPrivKey(IConfiguration conf, IUnitOfWork uow,
SshHostKeyAlgorithm keyAlgo, int privKeySize, string privKeyPass, SignatureHashAlgorithm sigAlgo)
{
var keyAlgoStr = keyAlgo.ToString();
var privKey = uow.PrivateKeys.Get(QueryExpressionFactory.GetQueryExpression <tbl_PrivateKey>()
.Where(x => x.KeyAlgo == keyAlgoStr && x.IdentityId == null && x.Deletable == false).ToLambda())
.SingleOrDefault();
if (privKey == null)
{
CreatePrivKey(conf, uow, keyAlgo, privKeySize, privKeyPass, sigAlgo);
}
}
