refactor(AsymCryptHandler): Renamed to Cryptograph

DigitalData.Core.Security/Cryptograph.cs

@@ -0,0 +1,42 @@
+using DigitalData.Core.Abstractions.Security;
+using DigitalData.Core.Security.Config;
+using DigitalData.Core.Security.Cryptographer;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+ 
+namespace DigitalData.Core.Security
+{
+    public class Cryptograph : RSAFactory<AsymCryptParams>, ICryptograph, IAsymmetricKeyFactory
+    {
+        public IEnumerable<IAsymmetricPrivateKey> PrivateKeys { get; }
+        
+        /// <summary>
+        /// It is a separate decryptor for permanently stored encrypted data. It is assigned to the first Default decryptor by default.
+        /// </summary>
+        public IAsymmetricPrivateKey VaultPrivateKey { get; }
+
+        private readonly Lazy<IEnumerable<IAsymmetricPublicKey>> _lazyPublicKeys;
+
+        public IEnumerable<IAsymmetricPublicKey> PublicKeys => _lazyPublicKeys.Value;
+
+        public IEnumerable<TokenDescription> TokenDescriptions { get; init; } = new List<TokenDescription>();
+
+        public Cryptograph(IOptions<AsymCryptParams> options, ILogger<Cryptograph>? logger = null) : base(options)
+        {
+            logger?.LogInformation("Core.Secrets version: {Version}, Created on: {CreationDate}.", Secrets.Version, Secrets.CreationDate.ToString("dd.MM.yyyy"));
+
+            if (!_params.PrivateKeys.Any())
+                throw new InvalidOperationException(
+                    "Any decryptor is not found. Ensure that at least one decryptor is configured in the provided parameters. " +
+                    "This issue typically arises if the configuration for decryptors is incomplete or missing. " +
+                    "Check the 'Decryptors' collection in the configuration and verify that it contains valid entries."
+                );
+
+            PrivateKeys = _params.PrivateKeys;
+
+            VaultPrivateKey = _params.VaultPrivateKey ?? PrivateKeys.First();
+
+            _lazyPublicKeys = new(PrivateKeys.Select(decryptor => decryptor.PublicKey));
+        }
+    }
+}