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asn1lib

1.0.2

An ASN1 parser library for Dart. Encodes / decodes from ASN1 Objects to BER bytes

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Readme

ASN.1 Parser for Dart

Encodes & decodes ASN1 using BER encoding.

Samples

Encoding

import 'package:asn1lib/asn1lib.dart';

var s = ASN1Sequence();
s.add(ASN1Integer(23));
s.add(ASN1OctetString('This is a test'));
s.add(ASN1Boolean(true));

// GET the BER Stream
var bytes = s.encodedBytes;

Decoding

import 'package:asn1lib/asn1lib.dart';

// e.g. bytes from the Encoding Example
var p = ASN1Parser(bytes);
var s2 = p.nextObject();
// s2 is a sequence...
Changelog

Changelog

1.0.2

  • Better toString() for ASN1ObjectIdentifier

1.0.1

  • Add ASN1NumericString support

1.0.0

  • Bumped to 1.0.0 as this is now null safe
  • Code cleanup

0.9.0

  • Requires Dart 2.12
  • Enable null-safety

0.8.1

  • Allow OID octets to be 0
  • Fix ASN1Integer.toString() typo

0.8.0

  • Add ASN1IpAddress object based on ASN1OctetString
  • Add tests for ASN1IpAddress

0.7.1

  • Allow parsing of unrecognizes application tags into generic ASN1Objects
  • Fix parser test filename typo
  • Add new tag tests

0.7.0

  • Improve object identifier tests
  • Fix ASN1ObjectIdentifier static methods fromBytes() and fromComponents()

0.6.5

  • Add new object identifiers

0.6.4

  • Fix ASN1Object.preEncoded bytes range
  • Add unit tests

0.6.3

  • Add ASN1TeletextString Parser
  • Add unit tests

0.6.2

  • Small fix for the ASN1GeneralizedTime parser

0.6.1

  • Add sha1WithRSAEncryption object identifier
  • Add ASN1GeneralizedTime Parser
  • Add unit tests

0.6.0

  • Fix all linter warnings

0.5.15

  • Add businessCategory object identifier

0.5.14

  • Add DN for subjectAltName

0.5.13

  • Merged #37. Improved length computing in the ASN1Parser.
  • Added new unit tests.

0.5.12

  • Merged #36. Improved length computing in the ASN1Parser.

0.5.11

  • Merged #34. Added example

0.5.10

  • Merged #32. Update length in asn1 parser.

0.5.9

  • Merged #31. Improve fromBytes. Logic from Java Bouncy Castle.

0.5.8

Merged #30

  • Add IA5String
  • Add associated tests
  • Make sure parser handles IA5 and UT8 String
  • Add large test case with PEM Certificate that includes IA5 and UTF8 Strings
  • Cleanup README

0.5.7

Merged #29

  • Expand AS1NNull to accept tag
  • Associated test cases
  • Added David Janes as author

0.5.6

Merged #28

Add ASN1UTF8String

0.5.5

Merged #27

Updates to ASN1ObjectIdentifier to:

  • allow creation from dotted number lists
  • allow creation from dotted number strings
  • allow names to be registered, for shorthands
  • allow bulk name registration
  • commonly used names (obviously, what this is could be expanded)

0.5.4

Fixed #26

0.5.1

Add AS1Integer.fromInt factory method

0.5.0

  • Convert use of BigInteger to dart SDK BigInt

0.4.3

  • Updates for dart 2

0.4.2

  • Added contentBytes() getter
  • Removed Int64List dependency and use bignum's BigInteger instead

Installing

export PUB_HOSTED_URL=https://pub.mirror.p-hatan.ir
flutter pub add asn1lib
pubspec.yaml
name: asn1lib
version: 1.0.2
description: An ASN1 parser library for Dart. Encodes / decodes from ASN1 Objects to BER bytes
homepage: https://github.com/wstrange/asn1lib
environment:
 sdk: '>=2.12.0 <3.0.0'

dev_dependencies:
  test: ^1.16.0
  pedantic: ^1.10.0

Version history

VersionPublishedArchiveSHA-256
0.1.02013-10-20T20:19:26.926400ZDownloadf8ff759cd1e612d02b34275e0eaefd5f92700c33b0939a125bd4dcc8fb4c23ce
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Dependencies

No direct dependencies declared.