HMAC class

The HMAC class represents a Hash-based Message Authentication Code.

It computes a MAC using a given hash function with a secret key and input data.

Implemented types

• SerializableHash<HashState>

Constructors

HMAC(HashFunc hash, List<int> key, [int? blockSize])

Creates an HMAC instance with the specified hash function and secret key.

Properties

getBlockSize → int

block size

no setter, override

getDigestLength → int

digest length

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clean() → void

Clean up the internal state and reset hash object to its initial state.

override

cleanSavedState(dynamic savedState) → void

Clean up and reset the saved state of the hash object to its initial state. This function erases the buffer and sets the state and length to the default values. It is used to ensure that a previously saved hash state is cleared and ready for reuse.

override

digest() → List<int>

Generates the final hash digest by assembling and returning the hash state in a List

override

finish(List<int> out) → HMAC

Finalizes the hash computation and stores the hash state in the provided List

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reset() → HMAC

Resets the hash computation to its initial state.

override

restoreState(dynamic savedState) → HMAC

Restores the hash computation state from a previously saved state.

override

saveState() → HashState

Saves the current hash computation state into a serializable state object.

override

toString() → String

A string representation of this object.

inherited

update(List<int> data) → Hash

Updates the hash computation with the given data.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

hmac(HashFunc hash, List<int> key, List<int> data) → List<int>

Calculates an HMAC using a specified hash function, a secret key, and input data. The hash parameter should be a function that returns a hash instance, e.g., SHA1, SHA256, etc.