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/tls/TlsDsaSigner.cs
+++ b/Assets/BestHTTP/SecureProtocol/crypto/tls/TlsDsaSigner.cs
@@ -0,0 +1,86 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+
+using System;
+
+using Org.BouncyCastle.Crypto.Digests;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Crypto.Signers;
+using Org.BouncyCastle.Security;
+
+namespace Org.BouncyCastle.Crypto.Tls
+{
+    public abstract class TlsDsaSigner
+        :	AbstractTlsSigner
+    {
+        public override byte[] GenerateRawSignature(SignatureAndHashAlgorithm algorithm,
+            AsymmetricKeyParameter privateKey, byte[] hash)
+        {
+            ISigner signer = MakeSigner(algorithm, true, true,
+                new ParametersWithRandom(privateKey, this.mContext.SecureRandom));
+            if (algorithm == null)
+            {
+                // Note: Only use the SHA1 part of the (MD5/SHA1) hash
+                signer.BlockUpdate(hash, 16, 20);
+            }
+            else
+            {
+                signer.BlockUpdate(hash, 0, hash.Length);
+            }
+            return signer.GenerateSignature();
+        }
+
+        public override bool VerifyRawSignature(SignatureAndHashAlgorithm algorithm, byte[] sigBytes,
+            AsymmetricKeyParameter publicKey, byte[] hash)
+        {
+            ISigner signer = MakeSigner(algorithm, true, false, publicKey);
+            if (algorithm == null)
+            {
+                // Note: Only use the SHA1 part of the (MD5/SHA1) hash
+                signer.BlockUpdate(hash, 16, 20);
+            }
+            else
+            {
+                signer.BlockUpdate(hash, 0, hash.Length);
+            }
+            return signer.VerifySignature(sigBytes);
+        }
+
+        public override ISigner CreateSigner(SignatureAndHashAlgorithm algorithm, AsymmetricKeyParameter privateKey)
+        {
+            return MakeSigner(algorithm, false, true, privateKey);
+        }
+
+        public override ISigner CreateVerifyer(SignatureAndHashAlgorithm algorithm, AsymmetricKeyParameter publicKey)
+        {
+            return MakeSigner(algorithm, false, false, publicKey);
+        }
+
+        protected virtual ICipherParameters MakeInitParameters(bool forSigning, ICipherParameters cp)
+        {
+            return cp;
+        }
+
+        protected virtual ISigner MakeSigner(SignatureAndHashAlgorithm algorithm, bool raw, bool forSigning,
+            ICipherParameters cp)
+        {
+            if ((algorithm != null) != TlsUtilities.IsTlsV12(mContext))
+                throw new InvalidOperationException();
+
+            if (algorithm != null && algorithm.Signature != SignatureAlgorithm)
+                throw new InvalidOperationException();
+
+            byte hashAlgorithm = algorithm == null ? HashAlgorithm.sha1 : algorithm.Hash;
+            IDigest d = raw ? new NullDigest() : TlsUtilities.CreateHash(hashAlgorithm);
+
+            ISigner s = new DsaDigestSigner(CreateDsaImpl(hashAlgorithm), d);
+            s.Init(forSigning, MakeInitParameters(forSigning, cp));
+            return s;
+        }
+
+        protected abstract byte SignatureAlgorithm { get; }
+
+        protected abstract IDsa CreateDsaImpl(byte hashAlgorithm);
+    }
+}
+
+#endif