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HMAC.Create Method (String)

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.

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.

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

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