- Initial commit

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

@@ -0,0 +1,73 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Macs;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl.BC
+{
+    internal sealed class BcTlsHmac
+        : TlsHmac
+    {
+        private readonly HMac m_hmac;
+
+        internal BcTlsHmac(HMac hmac)
+        {
+            this.m_hmac = hmac;
+        }
+
+        public void SetKey(byte[] key, int keyOff, int keyLen)
+        {
+            m_hmac.Init(new KeyParameter(key, keyOff, keyLen));
+        }
+
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
+        public void SetKey(ReadOnlySpan<byte> key)
+        {
+            m_hmac.Init(new KeyParameter(key));
+        }
+#endif
+
+        public void Update(byte[] input, int inOff, int length)
+        {
+            m_hmac.BlockUpdate(input, inOff, length);
+        }
+
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
+        public void Update(ReadOnlySpan<byte> input)
+        {
+            m_hmac.BlockUpdate(input);
+        }
+#endif
+
+        public byte[] CalculateMac()
+        {
+            byte[] rv = new byte[m_hmac.GetMacSize()];
+            m_hmac.DoFinal(rv, 0);
+            return rv;
+        }
+
+        public void CalculateMac(byte[] output, int outOff)
+        {
+            m_hmac.DoFinal(output, outOff);
+        }
+
+        public int InternalBlockSize
+        {
+            get { return m_hmac.GetUnderlyingDigest().GetByteLength(); }
+        }
+
+        public int MacLength
+        {
+            get { return m_hmac.GetMacSize(); }
+        }
+
+        public void Reset()
+        {
+            m_hmac.Reset();
+        }
+    }
+}
+#pragma warning restore
+#endif