Skip to main content

DevicePublicKey

Struct DevicePublicKey 

Source
pub struct DevicePublicKey { /* private fields */ }
Expand description

Public types of device identity.

Device identity lives in qualia_dik — an independent, reusable crate that any project needing “a pair of P-256 identity keys in platform hardware” can use without accepting this crate’s vault format or sync protocol. They are re-exported here so that downstream code does not have to depend on both crates.

DevicePublicKey and DeviceSignature are not secret — they are meant to be printed on QR codes, written to logs, and propagated between devices — so they are exported separately from the secret types, which makes it visible in an import list which types may be printed freely. 设备身份公钥(SEC1 未压缩点,65 字节)。

公钥不是秘密:它会被放进二维码、写进日志、在设备之间传播。所以这个类型 实现 Debug 的完整输出,也可以 Clone,与秘密类型相反。

Implementations§

Source§

impl DevicePublicKey

Source

pub fn from_sec1_bytes(bytes: &[u8]) -> Result<DevicePublicKey, Error>

从 SEC1 未压缩点构造,并验证它确实是 P-256 曲线上的点。

§为什么必须验证

公钥来自外部输入(二维码、网络)。P-256 上存在非法曲线攻击:把一个 不属于曲线、而属于某个小子群的点交给对方,可以从对方的运算结果里反推出 私钥信息。虽然 ECDSA 验签本身不像 ECDH 那样直接暴露私钥,但让一个非法点 进入后续任何运算都是不必要的风险。

这里用 p256 的完整解析(而不是只检查长度与前缀),它内部会做曲线方程 校验。因此非法点根本无法构造出本类型的值。

§错误

若长度不对、前缀不是 0x04、或该点不在 P-256 上,返回 Error::DevicePublicKeyInvalid。

Source

pub const fn as_sec1_bytes(&self) -> &[u8; 65]

取 SEC1 未压缩点字节。

Source

pub fn device_id(&self) -> DeviceId

这台设备的身份标识。

Trait Implementations§

Source§

impl Clone for DevicePublicKey

Source§

fn clone(&self) -> DevicePublicKey

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for DevicePublicKey

Source§

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

输出为十六进制。公钥不是秘密,不需要脱敏。

Source§

impl Eq for DevicePublicKey

Source§

impl PartialEq for DevicePublicKey

Source§

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for DevicePublicKey

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

Source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.