Struct Hmac 

pub struct Hmac<Variant, const KEY_LENGTH: usize, const MAC_LENGTH: usize>
where
    Variant: HmacVariant<KEY_LENGTH, MAC_LENGTH>,
{ /* private fields */ }

Rustaceous HMAC authenticator for a specific HmacVariant.

Implementations

impl<Variant, const KEY_LENGTH: usize, const MAC_LENGTH: usize> Hmac<Variant, KEY_LENGTH, MAC_LENGTH>

where Variant: HmacVariant<KEY_LENGTH, MAC_LENGTH>,

pub fn compute<Output: NewByteArray<MAC_LENGTH>, Key: ByteArray<KEY_LENGTH>, Input: Bytes + ?Sized>( key: &Key, input: &Input, ) -> Output

Computes and returns the message authentication code for input using key.

pub fn compute_to_vec<Key: ByteArray<KEY_LENGTH>, Input: Bytes + ?Sized>( key: &Key, input: &Input, ) -> Vec<u8>

Available on crate feature alloc only.

Convenience wrapper around Self::compute that returns a Vec.

pub fn compute_and_verify<OtherMac: ByteArray<MAC_LENGTH>, Key: ByteArray<KEY_LENGTH>, Input: Bytes + ?Sized>( other_mac: &OtherMac, key: &Key, input: &Input, ) -> Result<(), Error>

Verifies other_mac against input using key.

Errors

Returns an error if other_mac does not authenticate input under key.

pub fn new<Key: ByteArray<KEY_LENGTH>>(key: &Key) -> Self

Returns a new incremental authenticator for key.

pub fn update<Input: Bytes + ?Sized>(&mut self, input: &Input)

Updates the authenticator with input.

pub fn finalize<Output: NewByteArray<MAC_LENGTH>>(self) -> Output

Finalizes this authenticator, returning the message authentication code.

pub fn finalize_to_vec(self) -> Vec<u8>

Available on crate feature alloc only.

Finalizes this authenticator, returning the message authentication code as a Vec.

pub fn verify<OtherMac: ByteArray<MAC_LENGTH>>( self, other_mac: &OtherMac, ) -> Result<(), Error>

Finalizes this authenticator and verifies that the computed code matches other_mac using a constant-time comparison.

Errors

Returns an error if other_mac does not match the authentication code computed from the data passed to Hmac::update.