本文整理汇总了VB.NET中System.Security.RightsManagement.CryptoProvider.Decrypt方法的典型用法代码示例。如果您正苦于以下问题：VB.NET CryptoProvider.Decrypt方法的具体用法？VB.NET CryptoProvider.Decrypt怎么用？VB.NET CryptoProvider.Decrypt使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Security.RightsManagement.CryptoProvider的用法示例。
在下文中一共展示了CryptoProvider.Decrypt方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: imageBuffer
Dim imageBuffer() As Byte
Using cipherTextStream As Stream = File.OpenRead(encryptedFile)
Dim expression As Int32
Dim contentLengthByteBuffer(Len(expression) - 1) As Byte
' Read the length of the source content file
' from the first four bytes of the encrypted file.
ReliableRead(cipherTextStream, contentLengthByteBuffer, 0, Len(expression))
' Allocate the clearText buffer.
Dim contentLength As Integer = BitConverter.ToInt32(contentLengthByteBuffer, 0)
imageBuffer = New Byte(contentLength - 1) {}
' Allocate the cipherText block.
Dim cipherTextBlock(cryptoProvider.BlockSize - 1) As Byte
' decrypt cipherText to clearText block by block.
Dim imageBufferIndex As Integer = 0
Do
Dim readCount As Integer = ReliableRead(cipherTextStream, cipherTextBlock, 0, cryptoProvider.BlockSize)
' readCount of zero is end of data.
If readCount = 0 Then
Exit Do ' for
End If
' Decrypt cipherText to clearText.
Dim clearTextBlock() As Byte = cryptoProvider.Decrypt(cipherTextBlock)
' Copy the clearTextBlock to the imageBuffer.
Dim copySize As Integer = Math.Min(clearTextBlock.Length, contentLength - imageBufferIndex)
Array.Copy(clearTextBlock, 0, imageBuffer, imageBufferIndex, copySize)
imageBufferIndex += copySize
Loop
End Using ' end:using (Stream cipherTextStream = (close/dispose)