Struct rand::distributions::Alphanumeric[][src]

pub struct Alphanumeric;

Sample a u8, uniformly distributed over ASCII letters and numbers: a-z, A-Z and 0-9.

Example

use std::iter;
use rand::{Rng, thread_rng};
use rand::distributions::Alphanumeric;

let mut rng = thread_rng();
let chars: String = iter::repeat(())
        .map(|()| rng.sample(Alphanumeric))
        .map(char::from)
        .take(7)
        .collect();
println!("Random chars: {}", chars);

Passwords

Users sometimes ask whether it is safe to use a string of random characters as a password. In principle, all RNGs in Rand implementing CryptoRng are suitable as a source of randomness for generating passwords (if they are properly seeded), but it is more conservative to only use randomness directly from the operating system via the getrandom crate, or the corresponding bindings of a crypto library.

When generating passwords or keys, it is important to consider the threat model and in some cases the memorability of the password. This is out of scope of the Rand project, and therefore we defer to the following references:

Trait Implementations

impl Debug for Alphanumeric[src]

impl Distribution<u8> for Alphanumeric[src]

Auto Trait Implementations

impl RefUnwindSafe for Alphanumeric

impl Send for Alphanumeric

impl Sync for Alphanumeric

impl Unpin for Alphanumeric

impl UnwindSafe for Alphanumeric

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 
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