pub type Hctr2pp_256 = Hctr2pp<Aes256>;Expand description
HCTR2++ with an AES-256 master key.
AES-256 is used only to derive the hash and re-keying subkeys from the master
key. The R3 re-keyed block cipher calls are always AES-128, because the R3
scheme produces n-bit ephemeral keys, so this variant does NOT provide
256-bit security: the effective primitive strength is 128 bits, exactly as
with Hctr2pp_128. Choose it only when key management mandates a 256-bit
master key.
Aliased Typeยง
pub struct Hctr2pp_256 { /* private fields */ }