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HMACSHA512 Constructor (Byte[])

Initializes a new instance of the HMACSHA512 class with the specified key data.

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

public HMACSHA512(
	byte[] key
)

Parameters

key
Type: System.Byte[]

The secret key for HMACSHA512 encryption. The key can be any length. However, the recommended size is 128 bytes. If the key is more than 128 bytes long, it is hashed (using SHA-512) to derive a 128-byte key. If it is less than 128 bytes long, it is padded to 128 bytes.

ExceptionCondition
ArgumentNullException

The key parameter is null.

For an example of how to use this constructor, see the HMACSHA512 class.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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