XChaCha20Poly1305 class

XChaCha20-Poly1305 is a cryptographic algorithm combining XChaCha20 stream cipher for encryption and Poly1305 for generating message authentication code.

This class can not be instantiated directly, instead use this method:

final algo = XChaCha20(key, nonce, counter).poly1305(aad);

This implementation is based on the RFC-8439

Inheritance
Mixed-in types
Available extensions

Properties

algo → Poly1305
The MAC generator used by this AEAD construction
finalinherited
cipher → XChaCha20
The cipher used by this AEAD construction
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
iv → Uint8List
The salt or initialization vector
no setteroverride
name → String
The name of the algorithm
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

$mac(List<int> data, [List<int>? aad]) → HashDigest
Generates a message authentication code for the data.
inherited
bind(Stream<List<int>> stream) → Stream<Uint8List>
Transform the stream of chunks of message bytes using the algorithm.
inherited
cast<RS, RT>() → StreamTransformer<RS, RT>
Provides a StreamTransformer<RS, RT> view of this stream transformer.
inherited
convert(List<int> message) → Uint8List
Transforms the message of bytes using the cipher algorithm without generating a message authentication code.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
resetIV() → void
Replaces current IV with a new random one
override
sign(List<int> message, [List<int>? aad]) → AEADResultWithIV
Signs the message with an authentication tag.
override
signStream(Stream<List<int>> stream, [List<int>? aad]) → AEADStreamResult
Generates a message authentication tag for a stream of data.
override
stream(Stream<int> stream, [int chunkSize = 1024]) → Stream<int>

Available on StreamCipher, provided by the StreamCipherExtension extension

Transforms the stream of message bytes using the algorithm.
toString() → String
A string representation of this object.
inherited
verify(List<int> message, List<int> mac, [List<int>? aad]) → bool
Returns true if input message can be verified by the given message authentication code mac.
inherited
verifyStream(Stream<List<int>> stream, List<int> mac, [List<int>? aad]) → Future<bool>
Returns true if input stream can be verified by the given message authentication tag mac.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited