Struct KdfParams 

pub struct KdfParams {
    pub m_cost_kib: u32,
    pub t_cost: u32,
    pub p_cost: u32,
}

Argon2id parameters.

Parameters are stored inside every encrypted container so that defaults can evolve in the future without breaking older files. When parsing parameters from untrusted input they are validated against the bounds documented on each field to prevent denial-of-service via absurd values.

Fields

m_cost_kib: u32

Memory cost in KiB (Argon2 m). Default 65536 (64 MiB). Accepted range when reading untrusted input: 8 MiB ..= 4 GiB.

t_cost: u32

Time cost — number of passes (Argon2 t). Default 4. Accepted range: 1 ..= 64.

p_cost: u32

Degree of parallelism (Argon2 p). Default 4. Accepted range: 1 ..= 16.

Implementations

impl KdfParams

pub const fn new() -> Self

Library defaults: Argon2id with 64 MiB memory, 4 passes, parallelism 4 (matches the krypton CLI ≥ 0.2).

pub fn read_from(buf: &[u8]) -> Result<Self>

Parses and validates parameters from a 12-byte little-endian encoding.

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

Validates the parameters against safety bounds.

The upper bounds exist so that a hostile config file cannot make the process attempt an absurd allocation; the lower bound rejects settings so weak that no meaningful protection is provided.

Trait Implementations

impl Clone for KdfParams

fn clone(&self) -> KdfParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KdfParams

impl Debug for KdfParams

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

Formats the value using the given formatter.

impl Default for KdfParams

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for KdfParams

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for KdfParams

impl PartialEq for KdfParams

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for KdfParams

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for KdfParams