[kzrdude]

it should be expressed with conditionals anyway.

    match key.len() {
    k if k > self.block_size => ..
    k if k < ... => ..
    k  => ...

or even

    match key.cmp(self.block_size) {
    Equal => ..
    Greater => ..
    Less => ...

[masklinn]

Absolutely.

[relistan]

Thanks for the tip!