- Initial commit

Runtime/3rdParty/BouncyCastle/tls/crypto/impl/bc/BcTlsRsaEncryptor.cs

@@ -0,0 +1,51 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Encodings;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl.BC
+{
+    internal sealed class BcTlsRsaEncryptor
+        : TlsEncryptor
+    {
+        private static RsaKeyParameters CheckPublicKey(RsaKeyParameters pubKeyRsa)
+        {
+            if (null == pubKeyRsa || pubKeyRsa.IsPrivate)
+                throw new ArgumentException("No public RSA key provided", "pubKeyRsa");
+
+            return pubKeyRsa;
+        }
+
+        private readonly BcTlsCrypto m_crypto;
+        private readonly RsaKeyParameters m_pubKeyRsa;
+
+        internal BcTlsRsaEncryptor(BcTlsCrypto crypto, RsaKeyParameters pubKeyRsa)
+        {
+            this.m_crypto = crypto;
+            this.m_pubKeyRsa = CheckPublicKey(pubKeyRsa);
+        }
+
+        public byte[] Encrypt(byte[] input, int inOff, int length)
+        {
+            try
+            {
+                Pkcs1Encoding encoding = new Pkcs1Encoding(new RsaBlindedEngine());
+                encoding.Init(true, new ParametersWithRandom(m_pubKeyRsa, m_crypto.SecureRandom));
+                return encoding.ProcessBlock(input, inOff, length);
+            }
+            catch (InvalidCipherTextException e)
+            {
+                /*
+                 * This should never happen, only during decryption.
+                 */
+                throw new TlsFatalAlert(AlertDescription.internal_error, e);
+            }
+        }
+    }
+}
+#pragma warning restore
+#endif