Feature/eip 3074

src/Nethermind/Chains/foundation.json

@@ -190,6 +190,8 @@
     "eip4844TransitionTimestamp": "0x65F1B057",
     "eip5656TransitionTimestamp": "0x65F1B057",
     "eip6780TransitionTimestamp": "0x65F1B057",
+    //TODO correct this!
+    "eip3074TransitionTimestamp": "0x65F1B057",
     "terminalTotalDifficulty": "C70D808A128D7380000"
   },
   "genesis": {

src/Nethermind/Nethermind.Core/Eip3074Constants.cs

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: 2022 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+namespace Nethermind.Core;
+
+/// <summary>
+/// Represents the <see href="https://eips.ethereum.org/EIPS/eip-3074#constants">EIP-3074</see> parameters.
+/// </summary>
+public class Eip3074Constants
+{
+    /// <summary>
+    /// Used to prevent signature collision with other signing formats
+    /// </summary>
+    public const byte AuthMagic = 0x04;
+}

src/Nethermind/Nethermind.Core/Specs/IReleaseSpec.cs

@@ -278,6 +278,12 @@ public interface IReleaseSpec : IEip1559Spec, IReceiptSpec
         /// </summary>
         bool IsEip6780Enabled { get; }
 
+        /// <summary>
+        /// https://eips.ethereum.org/EIPS/eip-3074
+        /// AUTH and AUTHCALL for EOA
+        /// </summary>
+        bool IsEip3074Enabled { get; }
+
         /// <summary>
         /// Should transactions be validated against chainId.
         /// </summary>
@@ -361,5 +367,7 @@ public interface IReleaseSpec : IEip1559Spec, IReceiptSpec
         public bool IsBeaconBlockRootAvailable => IsEip4788Enabled;
         public bool MCopyIncluded => IsEip5656Enabled;
         public bool BlobBaseFeeEnabled => IsEip4844Enabled;
+
+        bool AuthCallsEnabled => IsEip3074Enabled;
     }
 }

src/Nethermind/Nethermind.Crypto/Ecdsa.cs

@@ -2,6 +2,8 @@
 // SPDX-License-Identifier: LGPL-3.0-only
 
 using System;
+using Nethermind.Core;
+using System.Security.Cryptography;
 using Nethermind.Core.Crypto;
 
 namespace Nethermind.Crypto
@@ -48,6 +50,16 @@ public Signature Sign(PrivateKey privateKey, Hash256 message)
             return signature;
         }
 
+        public PublicKey? TryRecoverPublicKey(ReadOnlySpan<byte> r, ReadOnlySpan<byte> s, byte v, Hash256 message)
+        {
+            if (v != 27 && v != 28)
+            {
+                return null;
+            }
+            Signature signature = new(r, s, v);
+            return RecoverPublicKey(signature, message);
+        }
+
         public PublicKey? RecoverPublicKey(Signature signature, Hash256 message)
         {
             Span<byte> publicKey = stackalloc byte[65];