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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/tls/crypto/TlsNullNullCipher.cs

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+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto
+{
+    /// <summary>The cipher for TLS_NULL_WITH_NULL_NULL.</summary>
+    public sealed class TlsNullNullCipher
+        : TlsCipher
+    {
+        public static readonly TlsNullNullCipher Instance = new TlsNullNullCipher();
+
+        public int GetCiphertextDecodeLimit(int plaintextLimit)
+        {
+            return plaintextLimit;
+        }
+
+        public int GetCiphertextEncodeLimit(int plaintextLength, int plaintextLimit)
+        {
+            return plaintextLength;
+        }
+
+        public int GetPlaintextLimit(int ciphertextLimit)
+        {
+            return ciphertextLimit;
+        }
+
+        public TlsEncodeResult EncodePlaintext(long seqNo, short contentType, ProtocolVersion recordVersion,
+            int headerAllocation, byte[] plaintext, int offset, int len)
+        {
+            byte[] result = new byte[headerAllocation + len];
+            Array.Copy(plaintext, offset, result, headerAllocation, len);
+            return new TlsEncodeResult(result, 0, result.Length, contentType);
+        }
+
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
+        public TlsEncodeResult EncodePlaintext(long seqNo, short contentType, ProtocolVersion recordVersion,
+            int headerAllocation, ReadOnlySpan<byte> plaintext)
+        {
+            byte[] result = new byte[headerAllocation + plaintext.Length];
+            plaintext.CopyTo(result.AsSpan(headerAllocation));
+            return new TlsEncodeResult(result, 0, result.Length, contentType);
+        }
+#endif
+
+        public TlsDecodeResult DecodeCiphertext(long seqNo, short recordType, ProtocolVersion recordVersion,
+            byte[] ciphertext, int offset, int len)
+        {
+            return new TlsDecodeResult(ciphertext, offset, len, recordType);
+        }
+
+        public void RekeyDecoder()
+        {
+            throw new TlsFatalAlert(AlertDescription.internal_error);
+        }
+
+        public void RekeyEncoder()
+        {
+            throw new TlsFatalAlert(AlertDescription.internal_error);
+        }
+
+        public bool UsesOpaqueRecordType
+        {
+            get { return false; }
+        }
+    }
+}
+#pragma warning restore
+#endif