ChaCha20Engine class

Implementation of Daniel J. Bernstein's ChaCha20 stream cipher, Snuffle 2005.

Implemented types

• StreamCipher

Constructors

ChaCha20Engine()

ChaCha20Engine.fromRounds(int rounds)

Properties

algorithmName → String

Get this algorithm's standard name.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

rounds ↔ int

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

generateKeyStream(Uint8List output) → void

init(bool forEncryption, covariant ParametersWithIV<KeyParameter> params) → void

Init the cipher with its initialization params. The type of CipherParameters depends on the algorithm being used (see the documentation of each implementation to find out more).

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

override

process(Uint8List data) → Uint8List

Process a whole block of data at once, returning the result in a byte array.

inherited

processBytes(Uint8List inp, int inpOff, int len, Uint8List out, int outOff) → void

Process len bytes of data given by inp and starting at offset inpOff. The resulting cipher text is put in out beginning at position outOff.

override

reset() → void

Reset the cipher to its original state.

override

returnByte(int inp) → int

Process one byte of data given by inp and return its encrypted value.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

factoryConfig → FactoryConfig

final

Constants

STATE_SIZE → const int