Struct Builder 

pub struct Builder<'a> { /* private fields */ }

Configures an FF1; obtained from FF1::builder.

Implementations

impl<'a> Builder<'a>

pub fn alphabet(self, alphabet: &'a str) -> Self

Enable the string interface: exactly radix distinct characters, the character at position i standing for numeral i.

pub fn tweak(self, tweak: &'a [u8]) -> Self

The tweak used when a call passes None. Defaults to empty.

pub fn min_tweak_len(self, len: usize) -> Self

Inclusive minimum tweak length, checked on every tweak.

pub fn max_tweak_len(self, len: usize) -> Self

Inclusive maximum tweak length, checked on every tweak. 0 is literal and admits only an empty tweak; leave it unset for no maximum.

pub fn build(self) -> Result<FF1, Error>

Validate the configuration and build the cipher.

Checks run in the Python package’s order – key, radix, tweak bounds, default tweak, alphabet – so a configuration with several faults reports the same one in both.

Trait Implementations

impl<'a> Clone for Builder<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.