That internal state is initially set up using the secret key material.
The key material needed in both paint research and electronics was pure silicon.
The key material is found in the first few verses of chapter 38.
The recession has kept stocks of the key materials high.
Perhaps most important, until recently, steel, chemicals, paper, aluminum and other key materials had seemed in short supply.
Sun and air will be the key raw materials of the future.
Germany lacks natural resources, including several key raw materials needed for economic and military operations.
They show our production index for various key materials.
It uses one more set of key material than rounds.
That is to say, so 15 sets of key material.