Creates a DESedeKeySpec object using the first 24 bytes in key as the key material for the DES-EDE key.

The bytes that constitute the DES-EDE key are those between key[0] and key[23] inclusive

Parameters:

key

the buffer with the DES-EDE key material. The first 24 bytes of the buffer are copied to protect against subsequent modification.

Exceptions:

NullPointerException		if key is null.
InvalidKeyException		if the given key material is shorter than 24 bytes.