Struct HmacSha512 

pub struct HmacSha512(/* private fields */);

HMAC-SHA512.

Implementations

impl HmacSha512

pub fn mac(key: &[u8], data: &[u8]) -> [u8; 64]

Computes the HMAC-SHA512 of data as a one-shot operation.

pub fn new(key: &[u8; 64]) -> Self

Creates a new HMAC-SHA512 operation from a fixed-size key.

pub fn new_from_slice(key: &[u8]) -> Self

Creates a new HMAC-SHA512 operation from a variable-length key.

pub fn update(&mut self, data: &[u8])

Hashes the provided input into the HMAC operation.

pub fn digest(self) -> [u8; 64]

Computes the final HMAC value, consuming the object.

pub fn verify_slice(self, tag: &[u8]) -> Result<(), InvalidSignatureError>

Checks that the provided tag value matches the computed HMAC value.

pub fn verify(self, tag: &[u8; 64]) -> Result<(), InvalidSignatureError>

Checks that the provided tag value matches the computed HMAC value.

pub fn verify_truncated_left( self, tag: &[u8], ) -> Result<(), InvalidSignatureError>

Checks that the provided tag value matches the computed HMAC, truncated to the input tag’s length.

Truncating an HMAC reduces the security of the construction. Callers must ensure tag’s length matches the desired HMAC length and security level.

Trait Implementations

impl Clone for HmacSha512

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.