Sha512 class abstract

SHA-512 HashAlgorithm (sometimes called SHA2-512).

In browsers, the default implementation will use Web Cryptography API. On other platforms, DartSha512 will be used.

import 'package:cryptography/cryptography.dart';

Future<void> main() async {
  final message = <int>[1,2,3];
  final algorithm = Sha512();
  final hash = await algorithm.hash(message);
  print('Hash: ${hash.bytes}');
}

If you really need synchronous computations, use DartSha512.

Streaming usage

This enables you to handle very large inputs without keeping everything in memory:

import 'package:cryptography/cryptography.dart';

void main() async {
  // Create a sink
  final algorithm = Sha512();
  final sink = algorithm.newSink();

  // Add any number of chunks
  sink.add(<int>[1,2,3]);
  sink.add(<int>[4,5]);

  // Calculate the hash
  sink.close();
  final hash = await sink.hash();
  print('Hash: ${hash.bytes}');
}
Inheritance
Implementers

Constructors

Sha512()
factory
Sha512.constructor()
Constructor for classes that extend this class.
const

Properties

blockLengthInBytes → int
The internal block size in bytes. This information is required by some algorithms such as Hmac.
no setteroverride
hashCode → int
The hash code for this object.
no setteroverride
hashLengthInBytes → int
Digest size in bytes.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

hash(List<int> input) → Future<Hash>
Calculates hash for the argument.
inherited
newHashSink() → HashSink
Constructs a sink for hashing chunks.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
toSync() → DartHashAlgorithm
For synchronous computations, returns a pure Dart implementation of the hash algorithm.
override

Operators

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