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

@@ -0,0 +1,66 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+using System.IO;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls
+{
+    public sealed class DigitallySigned
+    {
+        private readonly SignatureAndHashAlgorithm m_algorithm;
+        private readonly byte[] m_signature;
+
+        public DigitallySigned(SignatureAndHashAlgorithm algorithm, byte[] signature)
+        {
+            if (signature == null)
+                throw new ArgumentNullException("signature");
+
+            this.m_algorithm = algorithm;
+            this.m_signature = signature;
+        }
+
+        /// <returns>a <see cref="SignatureAndHashAlgorithm"/> (or null before TLS 1.2).</returns>
+        public SignatureAndHashAlgorithm Algorithm
+        {
+            get { return m_algorithm; }
+        }
+
+        public byte[] Signature
+        {
+            get { return m_signature; }
+        }
+
+        /// <summary>Encode this <see cref="DigitallySigned"/> to a <see cref="Stream"/>.</summary>
+        /// <param name="output">the <see cref="Stream"/> to encode to.</param>
+        /// <exception cref="IOException"/>
+        public void Encode(Stream output)
+        {
+            if (m_algorithm != null)
+            {
+                m_algorithm.Encode(output);
+            }
+            TlsUtilities.WriteOpaque16(m_signature, output);
+        }
+
+        /// <summary>Parse a <see cref="DigitallySigned"/> from a <see cref="Stream"/>.</summary>
+        /// <param name="context">the <see cref="TlsContext"/> of the current connection.</param>
+        /// <param name="input">the <see cref="Stream"/> to parse from.</param>
+        /// <returns>a <see cref="DigitallySigned"/> object.</returns>
+        /// <exception cref="IOException"/>
+        public static DigitallySigned Parse(TlsContext context, Stream input)
+        {
+            SignatureAndHashAlgorithm algorithm = null;
+            if (TlsUtilities.IsTlsV12(context))
+            {
+                algorithm = SignatureAndHashAlgorithm.Parse(input);
+
+                if (SignatureAlgorithm.anonymous == algorithm.Signature)
+                    throw new TlsFatalAlert(AlertDescription.illegal_parameter);
+            }
+            byte[] signature = TlsUtilities.ReadOpaque16(input);
+            return new DigitallySigned(algorithm, signature);
+        }
+    }
+}
+#pragma warning restore
+#endif