Constant MAX_KEY_LEN
pub const MAX_KEY_LEN: usize = 40; // 40usizeExpand description
Longest stored context: mac.rx: (7) + 32-byte key, with headroom.
pub const MAX_KEY_LEN: usize = 40; // 40usizeLongest stored context: mac.rx: (7) + 32-byte key, with headroom.