// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.Versioning;
using Internal.Cryptography;

namespace System.Security.Cryptography
{
    [Obsolete(Obsoletions.RijndaelMessage, DiagnosticId = Obsoletions.RijndaelDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
    [EditorBrowsable(EditorBrowsableState.Never)]
    public abstract class Rijndael : SymmetricAlgorithm
    {
        [UnsupportedOSPlatform("browser")]
        public static new Rijndael Create()
        {
            return new RijndaelImplementation();
        }

        [Obsolete(Obsoletions.CryptoStringFactoryMessage, DiagnosticId = Obsoletions.CryptoStringFactoryDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
        [RequiresUnreferencedCode(CryptoConfig.CreateFromNameUnreferencedCodeMessage)]
        public static new Rijndael? Create(string algName)
        {
            return (Rijndael?)CryptoConfig.CreateFromName(algName);
        }

        protected Rijndael()
        {
            LegalBlockSizesValue = s_legalBlockSizes.CloneKeySizesArray();
            LegalKeySizesValue = s_legalKeySizes.CloneKeySizesArray();
            KeySizeValue = 256;
            BlockSizeValue = 128;
            FeedbackSizeValue = BlockSizeValue;
        }

        private static readonly KeySizes[] s_legalBlockSizes =
        {
            new KeySizes(minSize: 128, maxSize: 256, skipSize: 64)
        };

        private static readonly KeySizes[] s_legalKeySizes =
        {
            new KeySizes(minSize: 128, maxSize: 256, skipSize: 64)
        };
    }
}