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トップに関する質問[C#/復号]Base64ではない文字/パッディング文字が含まれている？？？

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質問編集履歴

1

文法の修正

2021/11/01 15:50

投稿

tehori
tehori

スコア1

test CHANGED
File without changes
test CHANGED
@@ -58,7 +58,7 @@
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  Sample sample = new Sample();
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- Console.WriteLine(sample.DecS("RYlIxh5X8ktRsFuquVPeFiP2qP","wns the ow"));
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+ Console.WriteLine(sample.Decode("...","aaa"));
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@@ -68,21 +68,21 @@
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- private string DecS(string text, string p)
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+ private string Decode(string text, string p)
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  {
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- System.Security.Cryptography.RijndaelManaged _rijndeal = new System.Security.Cryptography.RijndaelManaged();
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+ System.Security.Cryptography.RijndaelManaged _rijndael = new System.Security.Cryptography.RijndaelManaged();
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  byte[] _key, _iv;
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- GenerateKeyFromPassWord(p, _rijndeal.KeySize, out _key, _rijndeal.BlockSize, out _iv);
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+ GenerateKeyFromPassWord(p, _rijndael.KeySize, out _key, _rijndael.BlockSize, out _iv);
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- _rijndeal.Key = _key;
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+ _rijndael.Key = _key;
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- _rijndeal.IV = _iv;
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+ _rijndael.IV = _iv;
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@@ -90,7 +90,7 @@
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- System.Security.Cryptography.ICryptoTransform _decryptor = _rijndeal.CreateDecryptor();
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+ System.Security.Cryptography.ICryptoTransform _decryptor = _rijndael.CreateDecryptor();
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@@ -106,23 +106,21 @@
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- public static void GenerateKeyFromPassWord(string pass, int keySize, out byte[] key, int blockSize, out byte[] iv)
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+ public static void GKFP(string pass, int keySize, out byte[] key, int blockSize, out byte[] iv)
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  {
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- byte[] _salt = System.Text.Encoding.UTF8.GetBytes("これがsaltとなります");
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+ byte[] _salt = System.Text.Encoding.UTF8.GetBytes("・・・");
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- System.Security.Cryptography.Rfc2898DeriveBytes _deviceBytes = new System.Security.Cryptography.Rfc2898DeriveBytes(pass, _salt);
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+ System.Security.Cryptography.Rfc2898DeriveBytes _deviceBytes = new System.Security.Cryptography.Rfc2898DeriveBytes(password, _salt);
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- _deviceBytes.IterationCount = 1000;
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+
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+ key = _deviceBytes.GetBytes(keySize);
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-
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- key = _deviceBytes.GetBytes(keySize / 8);
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-
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- iv = _deviceBytes.GetBytes(blockSize / 8);
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+ iv = _deviceBytes.GetBytes(blockSize);
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  }
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