Note: This constructor is new in the .NET Framework version 2.0.
Initializes a new instance of the HMACSHA1 class with the specified key data and a value that specifies whether to use the managed version of the SHA1 Algorithm.
Namespace: System.Security.Cryptography Assembly: mscorlib (in mscorlib.dll)
The secret key for HMACSHA1 encryption. The key can be any length but if it is more than 64 bytes long, it will be hashed (using SHA-1) to derive a 64-byte key. Therefore, the recommended size of the secret key is 64 bytes.