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SHA256Managed Class

Computes the SHA256 hash for the input data using the managed library.

For a list of all members of this type, see SHA256Managed Members.


[Visual Basic]
Public Class SHA256Managed
   Inherits SHA256
public class SHA256Managed : SHA256
public __gc class SHA256Managed : public SHA256
public class SHA256Managed extends SHA256

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


The hash is used as a unique value of fixed size representing a large amount of data. Hashes of two sets of data should match if and only if the corresponding data also matches. Small changes to the data result in large unpredictable changes in the hash.

The hash size for the SHA256Managed algorithm is 256 bits.


[Visual Basic, C#, C++] The following example computes the SHA256Managed hash for data and stores it in result. This example assumes that there is a predefined constant DATA_SIZE.

[Visual Basic] 
Dim data(DATA_SIZE) As Byte
Dim result() As Byte
Dim shaM As New SHA256Managed()
result = shaM.ComputeHash(data)

byte[] data = new byte[DATA_SIZE]; 
byte[] result;
SHA256 shaM = new SHA256Managed(); 
result = shaM.ComputeHash(data);

Byte data[] = new Byte[DATA_SIZE]; 
Byte result[];
SHA256* shaM = new SHA256Managed(); 
result = shaM->ComputeHash(data);

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.


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

SHA256Managed Members | System.Security.Cryptography Namespace | Cryptographic Services