- Initial commit

2026-07-03 05:02:26 +03:00
commit 374ff1e689
4080 changed files with 388870 additions and 0 deletions
--- a/Runtime/3rdParty/BouncyCastle/tls/crypto/impl/TlsImplUtilities.cs
+++ b/Runtime/3rdParty/BouncyCastle/tls/crypto/impl/TlsImplUtilities.cs
@ -0,0 +1,86 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl
+{
+    /// <summary>Useful utility methods.</summary>
+    public abstract class TlsImplUtilities
+    {
+        public static bool IsSsl(TlsCryptoParameters cryptoParams)
+        {
+            return cryptoParams.ServerVersion.IsSsl;
+        }
+
+        public static bool IsTlsV10(ProtocolVersion version)
+        {
+            return ProtocolVersion.TLSv10.IsEqualOrEarlierVersionOf(version.GetEquivalentTlsVersion());
+        }
+
+        public static bool IsTlsV10(TlsCryptoParameters cryptoParams)
+        {
+            return IsTlsV10(cryptoParams.ServerVersion);
+        }
+
+        public static bool IsTlsV11(ProtocolVersion version)
+        {
+            return ProtocolVersion.TLSv11.IsEqualOrEarlierVersionOf(version.GetEquivalentTlsVersion());
+        }
+
+        public static bool IsTlsV11(TlsCryptoParameters cryptoParams)
+        {
+            return IsTlsV11(cryptoParams.ServerVersion);
+        }
+
+        public static bool IsTlsV12(ProtocolVersion version)
+        {
+            return ProtocolVersion.TLSv12.IsEqualOrEarlierVersionOf(version.GetEquivalentTlsVersion());
+        }
+
+        public static bool IsTlsV12(TlsCryptoParameters cryptoParams)
+        {
+            return IsTlsV12(cryptoParams.ServerVersion);
+        }
+
+        public static bool IsTlsV13(ProtocolVersion version)
+        {
+            return ProtocolVersion.TLSv13.IsEqualOrEarlierVersionOf(version.GetEquivalentTlsVersion());
+        }
+
+        public static bool IsTlsV13(TlsCryptoParameters cryptoParams)
+        {
+            return IsTlsV13(cryptoParams.ServerVersion);
+        }
+
+        public static byte[] CalculateKeyBlock(TlsCryptoParameters cryptoParams, int length)
+        {
+            SecurityParameters securityParameters = cryptoParams.SecurityParameters;
+            TlsSecret master_secret = securityParameters.MasterSecret;
+            int prfAlgorithm = securityParameters.PrfAlgorithm;
+            byte[] seed = Arrays.Concatenate(securityParameters.ServerRandom, securityParameters.ClientRandom);
+            return master_secret.DeriveUsingPrf(prfAlgorithm, ExporterLabel.key_expansion, seed, length).Extract();
+        }
+
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || UNITY_2021_2_OR_NEWER
+        public static void CalculateKeyBlock(TlsCryptoParameters cryptoParams, Span<byte> keyBlock)
+        {
+            SecurityParameters securityParameters = cryptoParams.SecurityParameters;
+            TlsSecret master_secret = securityParameters.MasterSecret;
+            int prfAlgorithm = securityParameters.PrfAlgorithm;
+
+            Span<byte> cr = securityParameters.ClientRandom, sr = securityParameters.ServerRandom;
+            Span<byte> seed = stackalloc byte[sr.Length + cr.Length];
+            sr.CopyTo(seed);
+            cr.CopyTo(seed[sr.Length..]);
+
+            TlsSecret derived = master_secret.DeriveUsingPrf(prfAlgorithm, ExporterLabel.key_expansion, seed,
+                keyBlock.Length);
+            derived.ExtractTo(keyBlock);
+        }
+#endif
+    }
+}
+#pragma warning restore
+#endif