PaddingMode Enumeration
Specifies the type of padding to apply when the message data block is shorter than the full number of bytes needed for a cryptographic operation.
[Visual Basic] <Serializable> Public Enum PaddingMode [C#] [Serializable] public enum PaddingMode [C++] [Serializable] __value public enum PaddingMode [JScript] public Serializable enum PaddingMode
Remarks
Most plain text messages do not consist of a number of bytes that completely fill blocks. Often, there are not enough bytes to fill the last block. When this happens, a padding string is added to the text. For example, if the block length is 64 bits and the last block contains only 40 bits, 24 bits of padding are added.
Some encryption standards specify a particular padding scheme.
Members
| Member name | Description |
|---|---|
| None | No padding is done. |
| PKCS7 | The PKCS #7 padding string consists of a sequence of bytes, each of which is equal to the total number of padding bytes added. For example, if 24 bits (3 bytes) of padding need to be added, the padding string is "03 03 03". |
| Zeros | The padding string consists of bytes set to zero. |
Requirements
Namespace: System.Security.Cryptography
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
Assembly: Mscorlib (in Mscorlib.dll)
See Also
System.Security.Cryptography Namespace | Cryptographic Services