System.Security.Cryptography.DESCryptoServiceProvider Class Reference

Public Member Functions
	DESCryptoServiceProvider ()
override void	GenerateKey ()
override void	GenerateIV ()
override ICryptoTransform	CreateDecryptor ()
override ICryptoTransform	CreateDecryptor (byte[] rgbKey, byte[]? rgbIV)
override ICryptoTransform	CreateEncryptor ()
override ICryptoTransform	CreateEncryptor (byte[] rgbKey, byte[]? rgbIV)
void	Dispose ()
void	Clear ()
bool	ValidKeySize (int bitLength)
int	GetCiphertextLengthEcb (int plaintextLength, PaddingMode paddingMode)
int	GetCiphertextLengthCbc (int plaintextLength, PaddingMode paddingMode=PaddingMode.PKCS7)
int	GetCiphertextLengthCfb (int plaintextLength, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
byte[]	DecryptEcb (byte[] ciphertext, PaddingMode paddingMode)
byte[]	DecryptEcb (ReadOnlySpan< byte > ciphertext, PaddingMode paddingMode)
int	DecryptEcb (ReadOnlySpan< byte > ciphertext, Span< byte > destination, PaddingMode paddingMode)
bool	TryDecryptEcb (ReadOnlySpan< byte > ciphertext, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
byte[]	EncryptEcb (byte[] plaintext, PaddingMode paddingMode)
byte[]	EncryptEcb (ReadOnlySpan< byte > plaintext, PaddingMode paddingMode)
int	EncryptEcb (ReadOnlySpan< byte > plaintext, Span< byte > destination, PaddingMode paddingMode)
bool	TryEncryptEcb (ReadOnlySpan< byte > plaintext, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
byte[]	DecryptCbc (byte[] ciphertext, byte[] iv, PaddingMode paddingMode=PaddingMode.PKCS7)
byte[]	DecryptCbc (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, PaddingMode paddingMode=PaddingMode.PKCS7)
int	DecryptCbc (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode=PaddingMode.PKCS7)
bool	TryDecryptCbc (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, out int bytesWritten, PaddingMode paddingMode=PaddingMode.PKCS7)
byte[]	EncryptCbc (byte[] plaintext, byte[] iv, PaddingMode paddingMode=PaddingMode.PKCS7)
byte[]	EncryptCbc (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, PaddingMode paddingMode=PaddingMode.PKCS7)
int	EncryptCbc (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode=PaddingMode.PKCS7)
bool	TryEncryptCbc (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, out int bytesWritten, PaddingMode paddingMode=PaddingMode.PKCS7)
byte[]	DecryptCfb (byte[] ciphertext, byte[] iv, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
byte[]	DecryptCfb (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
int	DecryptCfb (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
bool	TryDecryptCfb (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, out int bytesWritten, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
byte[]	EncryptCfb (byte[] plaintext, byte[] iv, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
byte[]	EncryptCfb (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
int	EncryptCfb (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)
bool	TryEncryptCfb (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, out int bytesWritten, PaddingMode paddingMode=PaddingMode.None, int feedbackSizeInBits=8)

Static Public Member Functions
static new DES	Create ()
static new? DES	Create (string algName)
static bool	IsWeakKey (byte[] rgbKey)
static bool	IsSemiWeakKey (byte[] rgbKey)

Protected Member Functions
virtual void	Dispose (bool disposing)
virtual bool	TryEncryptEcbCore (ReadOnlySpan< byte > plaintext, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
virtual bool	TryDecryptEcbCore (ReadOnlySpan< byte > ciphertext, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
virtual bool	TryEncryptCbcCore (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
virtual bool	TryDecryptCbcCore (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode, out int bytesWritten)
virtual bool	TryDecryptCfbCore (ReadOnlySpan< byte > ciphertext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode, int feedbackSizeInBits, out int bytesWritten)
virtual bool	TryEncryptCfbCore (ReadOnlySpan< byte > plaintext, ReadOnlySpan< byte > iv, Span< byte > destination, PaddingMode paddingMode, int feedbackSizeInBits, out int bytesWritten)

Protected Attributes
CipherMode	ModeValue
PaddingMode	PaddingValue
byte?[]	KeyValue
byte?[]	IVValue
int	BlockSizeValue
int	FeedbackSizeValue
int	KeySizeValue
KeySizes[]	LegalBlockSizesValue
KeySizes[]	LegalKeySizesValue

Properties
override byte[]	Key [get, set]
virtual int	FeedbackSize [get, set]
virtual int	BlockSize [get, set]
virtual byte[]	IV [get, set]
virtual int	KeySize [get, set]
virtual KeySizes[]	LegalBlockSizes [get]
virtual KeySizes[]	LegalKeySizes [get]
virtual CipherMode	Mode [get, set]
virtual PaddingMode	Padding [get, set]

Private Member Functions
ICryptoTransform	CreateTransform (byte[] rgbKey, byte[] rgbIV, bool encrypting)
int	GetCiphertextLengthBlockAligned (int plaintextLength, PaddingMode paddingMode)
void	CheckInitializationVectorSize (ReadOnlySpan< byte > iv)
void	CheckFeedbackSize (int feedbackSizeInBits)

Static Private Member Functions
static bool	IsLegalKeySize (byte[] rgbKey)
static void	CheckPaddingMode (PaddingMode paddingMode)

Static Private Attributes
static readonly KeySizes[]	s_legalBlockSizes
static readonly KeySizes[]	s_legalKeySizes

Detailed Description

Definition at line 8 of file DESCryptoServiceProvider.cs.

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The documentation for this class was generated from the following file:

• source/System.Security.Cryptography.Csp/System.Security.Cryptography/DESCryptoServiceProvider.cs