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46 lines
1.1 KiB
46 lines
1.1 KiB
// System.Security.Cryptography.Aes
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#if NET20
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using System;
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using System.Runtime.CompilerServices;
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using System.Security.Cryptography;
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namespace System.Security.Cryptography
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{
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internal abstract class Aes : SymmetricAlgorithm
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{
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private static KeySizes[] s_legalBlockSizes = new KeySizes[1] { new KeySizes(128, 128, 0) };
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private static KeySizes[] s_legalKeySizes = new KeySizes[1] { new KeySizes(128, 256, 64) };
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protected Aes()
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{
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base.LegalBlockSizesValue = s_legalBlockSizes;
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base.LegalKeySizesValue = s_legalKeySizes;
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base.BlockSizeValue = 128;
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base.FeedbackSizeValue = 8;
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base.KeySizeValue = 256;
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base.ModeValue = CipherMode.CBC;
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}
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public new static Aes Create()
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{
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return Create("AES");
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}
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public new static Aes Create(string algorithmName)
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{
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if (algorithmName == null)
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{
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throw new ArgumentNullException("algorithmName");
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}
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return CryptoConfig.CreateFromName(algorithmName) as Aes;
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}
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}
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}
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#endif
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