up

2020-07-09 08:50:24 +08:00
parent 13d25f4707
commit c523462b82
1818 changed files with 174940 additions and 582 deletions
--- a/Assets/BestHTTP/SecureProtocol/crypto/prng/CryptoApiRandomGenerator.cs
+++ b/Assets/BestHTTP/SecureProtocol/crypto/prng/CryptoApiRandomGenerator.cs
@@ -0,0 +1,94 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+
+#if !(NETCF_1_0 || PORTABLE)
+
+using System;
+
+#if NETFX_CORE
+    using Windows.Security.Cryptography;
+#else
+    using System.Security.Cryptography;
+#endif
+
+namespace Org.BouncyCastle.Crypto.Prng
+{
+    /// <summary>
+    /// Uses Microsoft's RNGCryptoServiceProvider
+    /// </summary>
+    public class CryptoApiRandomGenerator
+        : IRandomGenerator
+    {
+#if !NETFX_CORE
+        private readonly RandomNumberGenerator rndProv;
+#endif
+
+        public CryptoApiRandomGenerator()
+#if !NETFX_CORE
+            : this(new RNGCryptoServiceProvider())
+#endif
+        {
+        }
+
+#if !NETFX_CORE
+        public CryptoApiRandomGenerator(RandomNumberGenerator rng)
+        {
+            this.rndProv = rng;
+        }
+#endif
+
+        #region IRandomGenerator Members
+
+        public virtual void AddSeedMaterial(byte[] seed)
+        {
+            // We don't care about the seed
+        }
+
+        public virtual void AddSeedMaterial(long seed)
+        {
+            // We don't care about the seed
+        }
+
+        public virtual void NextBytes(byte[] bytes)
+        {
+#if NETFX_CORE
+            var buffer = CryptographicBuffer.GenerateRandom((uint)bytes.Length);
+            byte[] finalBytes = null;
+            CryptographicBuffer.CopyToByteArray(buffer, out finalBytes);
+            finalBytes.CopyTo(bytes, 0);
+#else
+            rndProv.GetBytes(bytes);
+#endif
+        }
+
+        public virtual void NextBytes(byte[] bytes, int start, int len)
+        {
+            if (start < 0)
+                throw new ArgumentException("Start offset cannot be negative", "start");
+            if (bytes.Length < (start + len))
+                throw new ArgumentException("Byte array too small for requested offset and length");
+
+            if (bytes.Length == len && start == 0) 
+            {
+                NextBytes(bytes);
+            }
+            else 
+            {
+#if NETFX_CORE
+                byte[] tmpBuf = null;
+                var buffer = CryptographicBuffer.GenerateRandom((uint)bytes.Length);
+                CryptographicBuffer.CopyToByteArray(buffer, out tmpBuf);
+#else
+                byte[] tmpBuf = new byte[len];
+                NextBytes(tmpBuf);
+#endif
+                Array.Copy(tmpBuf, 0, bytes, start, len);
+            }
+        }
+
+        #endregion
+    }
+}
+
+#endif
+
+#endif