Struct KeyMetadata 

pub struct KeyMetadata {
    pub key_id: String,
    pub name: String,
    pub algorithm: KeyAlgorithm,
    pub purpose: KeyPurpose,
    pub version: u32,
    pub created_at: SystemTime,
    pub expires_at: Option<SystemTime>,
    pub status: KeyStatus,
    pub description: String,
    pub tags: Vec<String>,
}

密钥元数据，描述密钥的属性但不包含密钥材料

Fields

key_id: String

密钥唯一标识（UUID 风格）

name: String

密钥名称（同一名称可有多个版本）

algorithm: KeyAlgorithm

密钥算法

purpose: KeyPurpose

密钥用途

version: u32

版本号（从 1 开始递增）

created_at: SystemTime

创建时间

expires_at: Option<SystemTime>

过期时间（None 表示永不过期）

status: KeyStatus

密钥状态

description: String

人类可读的描述

tags: Vec<String>

标签列表，便于分类检索

Implementations

impl KeyMetadata

pub fn with_expiry(self, expires_at: SystemTime) -> Self

设置过期时间

pub fn with_description(self, description: impl Into<String>) -> Self

设置描述

pub fn with_tag(self, tag: impl Into<String>) -> Self

添加标签

pub fn is_expired(&self) -> bool

检查密钥是否已过期

pub fn age(&self) -> Duration

返回密钥已存活时长

Trait Implementations

impl Clone for KeyMetadata

fn clone(&self) -> KeyMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeyMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for KeyMetadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for KeyMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.