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HMAC.Create Method (String)

.NET Framework 4.5

Creates an instance of the specified implementation of a Hash-based Message Authentication Code (HMAC).

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

public static HMAC Create(
	string algorithmName
)

Parameters

algorithmName

Type: System.String

The HMAC implementation to use. The following table shows the valid values for the algorithmName parameter and the algorithms they map to.

Parameter value	Implements
System.Security.Cryptography.HMAC	HMACSHA1
System.Security.Cryptography.KeyedHashAlgorithm	HMACSHA1
HMACMD5	HMACMD5
System.Security.Cryptography.HMACMD5	HMACMD5
HMACRIPEMD160	HMACRIPEMD160
System.Security.Cryptography.HMACRIPEMD160	HMACRIPEMD160
HMACSHA1	HMACSHA1
System.Security.Cryptography.HMACSHA1	HMACSHA1
HMACSHA256	HMACSHA256
System.Security.Cryptography.HMACSHA256	HMACSHA256
HMACSHA384	HMACSHA384
System.Security.Cryptography.HMACSHA384	HMACSHA384
HMACSHA512	HMACSHA512
System.Security.Cryptography.HMACSHA512	HMACSHA512
MACTripleDES	MACTripleDES
System.Security.Cryptography.MACTripleDES	MACTripleDES

Return Value

Type: System.Security.Cryptography.HMAC
A new instance of the specified HMAC implementation.

Remarks

HMAC supports a number of hash algorithms, including MD5, SHA-1, SHA-256, and RIPEMD160. For the full list, see the supported values for the algorithmName parameter.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

HMAC Class

Create Overload

System.Security.Cryptography Namespace

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