HMACRIPEMD160 Constructor (Byte[])
Initializes a new instance of the HMACRIPEMD160 class with the specified key data.
Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)
Parameters
- key
- Type: System.Byte[]
The secret key for HMACRIPEMD160 encryption. The key can be any length, but if it is more than 64 bytes long it is hashed (using SHA-1) to derive a 64-byte key. Therefore, the recommended size of the secret key is 64 bytes.
| Exception | Condition |
|---|---|
| ArgumentNullException | The key parameter is null. |
HMACRIPEMD160 is a type of keyed hash algorithm that is constructed from the RIPEMD-160 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 160 bytes in length.
For an example of how to use this constructor, see the HMACRIPEMD160 class.
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.
