SymmetricAlgorithm.TryDecryptCfbCore Method
Definition
Important
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When overridden in a derived class, attempts to decrypt data into the specified buffer, using CFB mode with the specified padding mode and feedback size.
protected:
virtual bool TryDecryptCfbCore(ReadOnlySpan<System::Byte> ciphertext, ReadOnlySpan<System::Byte> iv, Span<System::Byte> destination, System::Security::Cryptography::PaddingMode paddingMode, int feedbackSizeInBits, [Runtime::InteropServices::Out] int % bytesWritten);
protected virtual bool TryDecryptCfbCore (ReadOnlySpan<byte> ciphertext, ReadOnlySpan<byte> iv, Span<byte> destination, System.Security.Cryptography.PaddingMode paddingMode, int feedbackSizeInBits, out int bytesWritten);
abstract member TryDecryptCfbCore : ReadOnlySpan<byte> * ReadOnlySpan<byte> * Span<byte> * System.Security.Cryptography.PaddingMode * int * int -> bool
override this.TryDecryptCfbCore : ReadOnlySpan<byte> * ReadOnlySpan<byte> * Span<byte> * System.Security.Cryptography.PaddingMode * int * int -> bool
Protected Overridable Function TryDecryptCfbCore (ciphertext As ReadOnlySpan(Of Byte), iv As ReadOnlySpan(Of Byte), destination As Span(Of Byte), paddingMode As PaddingMode, feedbackSizeInBits As Integer, ByRef bytesWritten As Integer) As Boolean
Parameters
- ciphertext
- ReadOnlySpan<Byte>
The data to decrypt.
- iv
- ReadOnlySpan<Byte>
The initialization vector.
- paddingMode
- PaddingMode
The padding mode used to produce the ciphertext and remove during decryption.
- feedbackSizeInBits
- Int32
The feedback size, specified in bits.
- bytesWritten
- Int32
When this method returns, contains the total number of bytes written to destination
.
Returns
true
if destination
was large enough to receive the decrypted data; otherwise, false
.
Exceptions
A derived class has not provided an implementation.
Remarks
Derived classes must override this and provide an implementation.
Applies to
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