Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

HMAC.Create Method (String)

Updated: March 2011

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, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Date

History

Reason

March 2011

Added list of algorithm names.

Customer feedback.

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.