我使用相同的初始化向量和相同的密钥进行加密和解密。但是,我在web应用程序中说“填充无效且不能删除”时出错,我在sql服务器表列(nvarchar(max))中加密数据和保存加密数据。我有窗口服务,读取加密数据和解密。有人能告诉我我哪里做错了吗。
public byte[] Encrypt(string clearText, string key, byte[] initialisationVector, int blockSizeInBits)
{//hidden logic
rijndaelManaged.Mode = CipherMode.CBC;
rijndaelManaged.Padding = PaddingMode.PKCS7;
//hidden logic
return memoryStream.ToArray();
}像这样打电话
Dim encryptionKey As String = ConfigurationManager.AppSettings("Key")
' Arrange - need 32 byte IV for 256-bit
Dim cryptographer3 As ICryptographer = New Cryptographer()
Dim initialisationVector3 As Byte() = {&H26, &HDC, &HFF, &H0, &HAD, &HED, _
&H7A, &HEE, &HC5, &HFE, &H7, &HAF, _
&H4D, &H8, &H22, &H3C, &H26, &HDC, _
&HFF, &H0, &HAD, &HED, &H7A, &HEE, _
&HC5, &HFE, &H7, &HAF, &H4D, &H8, _
&H22, &H3C}
' Act
Dim encryptedString As Byte() = cryptographer3.Encrypt(strForEncryption, encryptionKey, initialisationVector3, 256)
'Dim decrypt3 As String = cryptographer3.Decrypt(encryptedString, Key, initialisationVector3, 256)
Return System.Text.Encoding.Unicode.GetString(encryptedString)解密法
public string Decrypt(byte[] cipherText, string key, byte[] initialisationVector, int blockSizeInBits)
{
//hidden logic
rijndaelManaged.Mode = CipherMode.CBC;
rijndaelManaged.Padding = PaddingMode.PKCS7;
//hidden logic
}像这样叫
if (encryptedIdentificationValue.Trim().Length > 0)
{
string decryptionKey = ConfigurationManager.AppSettings["Key"];
// Arrange - need 32 byte IV for 256-bit
ICryptographer cryptographer3 = new Cryptographer();
byte[] initialisationVector3 =
{
0x26, 0xdc, 0xff, 0x0, 0xad, 0xed,
0x7a, 0xee, 0xc5, 0xfe, 0x7, 0xaf,
0x4d, 0x8, 0x22, 0x3c, 0x26, 0xdc,
0xff, 0x0, 0xad, 0xed, 0x7a, 0xee,
0xc5, 0xfe, 0x7, 0xaf, 0x4d, 0x8,
0x22, 0x3c
};
return cryptographer3.Decrypt(encryptedIdentificationValue, decryptionKey, initialisationVector3, 256);
}发布于 2014-04-05 17:52:25
“填充无效”消息可能意味着许多不同的事情。这可能只是填充的问题,也可能是整个加密(包括填充)的问题。您可以采取一些步骤来诊断问题。
https://stackoverflow.com/questions/22860985
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