Struct PasswordHashVerificationLimits 

pub struct PasswordHashVerificationLimits { /* private fields */ }

Absolute resource limits accepted when verifying a stored Argon2id PHC string.

Values below the current work factor remain valid for compatibility and are reported through PasswordHashVerification::needs_rehash. Values above these limits are rejected before the Argon2 work-memory allocation begins.

Implementations

impl PasswordHashVerificationLimits

pub fn new( max_memory_kib: u32, max_iterations: u32, max_parallelism: u32, max_output_length: usize, ) -> Result<Self>

Creates custom absolute verification limits.

Errors

Returns an error when any limit is below the Argon2 minimum or the output-length limit is outside the range accepted by the password-hash encoding.

pub const fn max_memory_kib(self) -> u32

Maximum accepted memory cost in KiB.

pub const fn max_iterations(self) -> u32

Maximum accepted number of Argon2 passes.

pub const fn max_parallelism(self) -> u32

Maximum accepted number of Argon2 lanes.

pub const fn max_output_length(self) -> usize

Maximum accepted password-hash output length in bytes.

Trait Implementations

impl Clone for PasswordHashVerificationLimits

fn clone(&self) -> PasswordHashVerificationLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PasswordHashVerificationLimits

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

Formats the value using the given formatter.

impl Default for PasswordHashVerificationLimits

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PasswordHashVerificationLimits

fn eq(&self, other: &PasswordHashVerificationLimits) -> 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 Copy for PasswordHashVerificationLimits

impl Eq for PasswordHashVerificationLimits

impl StructuralPartialEq for PasswordHashVerificationLimits