Enum SecurityStrength 

#[repr(u8)]
pub enum SecurityStrength {
    None = 0,
    _112bit = 1,
    _128bit = 2,
    _192bit = 3,
    _256bit = 4,
}

A general indicator used across the library for marking the security level of a cryptographic primitive, and for tracking the security level of the algorithms that interacted with a given piece of data. For example, if a KDF at the 128-bit security strength is used to produce a 512-bit key, that key will also be tagged as having a 128-bit security strength.

Some functions across the library may reject or behave differently based on the security strength of the inputs they are given. For example a keygen_from_seed() may reject a seed taged at a lower security strength than the one required by the algorithm, or it may proceed, but lower its own advertised security strength accordingly – each cryptographic primitive may have additional detail.

Variants

None = 0

_112bit = 1

_128bit = 2

_192bit = 3

_256bit = 4

Implementations

impl SecurityStrength

pub fn from_bits(bits: usize) -> Self

Rounds down to the closest supported security strength. For example, 120-bits is rounded down to 112-bit.

pub fn from_bytes(bytes: usize) -> Self

Rounds down to the closest supported security strength. For example, 15 bytes (120-bits) is rounded down to 112-bit.

pub fn as_int(&self) -> u32

Outputs the security strength in bits for easier computation.

Trait Implementations

impl Clone for SecurityStrength

fn clone(&self) -> SecurityStrength

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SecurityStrength

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for SecurityStrength

fn eq(&self, other: &SecurityStrength) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for SecurityStrength

fn partial_cmp(&self, other: &SecurityStrength) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<u8> for SecurityStrength

fn try_from(value: u8) -> Result<Self, Self::Error>

Inverse of self as u8; rejects unrecognized discriminants with SuspendableError::InvalidData.

type Error = SuspendableError

The type returned in the event of a conversion error.

impl Copy for SecurityStrength

impl Eq for SecurityStrength

impl StructuralPartialEq for SecurityStrength