Struct HmacKey 

pub struct HmacKey { /* private fields */ }

HMAC key material.

The key is copied into an owned zeroizing buffer before use so callers can drop their input independently and the primitive controls memory cleanup.

Implementations

impl HmacKey

pub fn from_slice(input: &[u8]) -> Result<HmacKey, CryptoError>

Constructs an HMAC key from raw bytes.

Empty keys are rejected because they provide no secret entropy. Very large keys are rejected to keep allocation behavior deterministic at FFI and platform boundaries.

pub fn as_bytes(&self) -> &[u8]

Borrows the raw key bytes.

Trait Implementations

impl Drop for HmacKey

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Zeroize for HmacKey

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.