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SHA1Managed Class
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SHA1Managed Class

Computes the SHA1 hash for the input data using the managed library.

Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)

public class SHA1Managed : SHA1
/** @attribute ComVisibleAttribute(true) */ 
public class SHA1Managed extends SHA1
public class SHA1Managed extends SHA1

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.

This is a purely managed implementation of SHA1 that does not wrap CAPI.

The hash size for the SHA1Managed algorithm is 160 bits.

The following example computes the SHA1Managed hash for data and stores it in result. This example assumes that there is a predefined constant DATA_SIZE.

byte[] data = new byte[DATA_SIZE];
byte[] result;
SHA1 shaM = new SHA1Managed();
result = shaM.ComputeHash(data);

ubyte data[] = new ubyte[date_Size];
ubyte result[];
SHA1 shaM = new SHA1Managed();

result = shaM.ComputeHash(data);

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

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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