Struct BcryptParams 

pub struct BcryptParams {
    pub cost: u32,
}

Parameters for bcrypt key derivation.

The cost factor controls the number of iterations (2^cost). Higher cost means slower hashing.

Fields

cost: u32

Cost factor (must be in range [4, 31]).

Implementations

impl BcryptParams

pub fn new(cost: u32) -> Result<Self, CryptoError>

Create new parameters, returning an error if cost is out of range.

Valid range: 4 <= cost <= 31.

Errors

Returns CryptoError::BadInput if cost < 4 or cost > 31.

pub fn interactive() -> Self

Interactive login preset (cost = 10).

Suitable for online authentication; targets ~100 ms on modern hardware.

pub fn moderate() -> Self

Moderate preset (cost = 12).

Balanced between interactive and sensitive use-cases.

pub fn sensitive() -> Self

Sensitive preset (cost = 14).

High-security offline key derivation.

pub fn validate(&self) -> Result<(), CryptoError>

Validate that the cost factor is within the allowed range [4, 31].

Errors

Returns CryptoError::BadInput if cost < 4 or cost > 31.

Trait Implementations

impl Clone for BcryptParams

fn clone(&self) -> BcryptParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BcryptParams

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

Formats the value using the given formatter.

impl PasswordHashParams for BcryptParams

fn memory_cost(&self) -> Option<u32>

Memory cost in kibibytes (Argon2, scrypt) or None if not applicable.

fn time_cost(&self) -> Option<u32>

Time cost (iterations for PBKDF2/Argon2) or None if not applicable.

fn parallelism(&self) -> Option<u32>

Degree of parallelism (Argon2/scrypt) or None if not applicable.