HashAlgorithm class abstract

A hash algorithm that produces a Hash.

Available algorithms

• Blake2b
• Blake2s
• Sha1
• Sha224 (SHA2-224)
• Sha256 (SHA2-256)
• Sha384 (SHA2-384)
• Sha512 (SHA2-512)

Example: simple usage

import 'package:cryptography/cryptography.dart';

void main() async {
  final algorithm = Sha256();
  final hash = await algorithm.hash([1,2,3]);
  print('Hash: ${hash.bytes}');
}

Example: hashing many chunks

import 'package:cryptography/cryptography.dart';

void main() async {
  // Create a sink
  final algorithm = Sha256();
  final sink = algorithm.newHashSink();

  // Add all parts
  sink.add(<int>[1,2,3]);
  sink.add(<int>[4,5]);

  // Calculate hash
  sink.close();
  final hash = await sink.hash();

  print('Hash: ${hash.bytes}');
}

Implementers

• Blake2b
• Blake2s
• DartHashAlgorithm
• DartSha1
• DartSha384
• DartSha512
• Sha1
• Sha224
• Sha256
• Sha384
• Sha512

Constructors

HashAlgorithm()

const

Properties

blockLengthInBytes → int

The internal block size in bytes. This information is required by some algorithms such as Hmac.

no setter

hashCode → int

The hash code for this object.

no setter, override

hashLengthInBytes → int

Digest size in bytes.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

hash(List<int> input) → Future<Hash>

Calculates hash for the argument.

override

newHashSink() → HashSink

Constructs a sink for hashing chunks.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

toSync() → DartHashAlgorithm

For synchronous computations, returns a pure Dart implementation of the hash algorithm.

Operators

operator ==(Object other) → bool

The equality operator.

override