Sha1 class abstract

SHA-1 HashAlgorithm.

In browsers, the default implementation will use Web Cryptography API. On other platforms, DartSha1 will be used.

import 'package:cryptography/cryptography.dart';

Future<void> main() async {
  final message = <int>[1,2,3];
  final algorithm = Sha1();
  final hash = await algorithm.hash(message);
  print('Hash: ${hash.bytes}');
}

If you really need synchronous computations, use DartSha1.

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 = Sha1();
  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

Sha1()
factory
Sha1.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