質問編集履歴
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# 質問
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.NET Framework と .NET Coreでの実行結果が違います。
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Q1. corefxの
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Q1. corefxのRijndaelImplementation.csを見ると以下のように書かれていました。
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なぜ.NET Coreではブロック長256bitがサポートされていないのでしょうか？
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```
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Values which were legal in desktop RijndaelManaged but not here in this wrapper type
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```
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[https://github.com/dotnet/corefx/blob/master/src/System.Security.Cryptography.Algorithms/src/
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[https://github.com/dotnet/corefx/blob/master/src/System.Security.Cryptography.Algorithms/src/Internal/Cryptography/RijndaelImplementation.cs#L36](https://github.com/dotnet/corefx/blob/master/src/System.Security.Cryptography.Algorithms/src/Internal/Cryptography/RijndaelImplementation.cs#L36)
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Q2. .NET Core標準クラスを利用してブロック長256bitの暗号化、複合をするにはどうすれば良いでしょうか。
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using System.Security.Cryptography;
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using System.Text;
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namespace
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namespace Rijndael256Test
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{
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class Program
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{
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```
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Unhandled Exception: System.PlatformNotSupportedException: BlockSize must be 128 in this implementation.
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at Internal.Cryptography.RijndaelImplementation.set_BlockSize(Int32 value)
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at
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at Rijndael256Test.Program.RijndaelEncrypt(Byte[] bytes) in Program.cs:line 19
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at
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at Rijndael256Test.Program.Main(String[] args) in Program.cs:line 47
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```
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