hashlib_codecs 2.2.0

Fast and error resilient codecs. Currently supporting Binary(Base2), Hexadecimal(Base16), Base32, Base64, BigInt.

Hashlib Codecs

This library contains implementations of fast and error resilient codecs in pure Dart.

Features

Binary (Base-2)

Type	Available
Class	Base2Codec
Methods	fromBinary, toBinary

Available codecs:

• standard: 01 (default)

Octal (Base-8)

Type	Available
Class	Base8Codec
Methods	fromOctal, toOctal

Available codecs:

• standard: 012345678 (default)

Hexadecimal (Base-16)

Type	Available
Class	Base16Codec
Methods	fromHex, toHex

Available codecs:

• upper: 0123456789ABCDEF (default)
• lower: 0123456789abcdef

Base-32

Supports conversion without padding

Type	Available
Class	Base32Codec
Methods	fromBase32, toBase32

Available codecs:

• standard (RFC-4648): ABCDEFGHIJKLMNOPQRSTUVWXYZ234567 (default)
• lowercase: abcdefghijklmnopqrstuvwxyz234567
• hex: 0123456789ABCDEFGHIJKLMNOPQRSTUV
• hexLower: 0123456789abcdefghijklmnopqrstuv
• crockford: 0123456789bcdefghjkmnpqrstuvwxyz
• z: ybndrfg8ejkmcpqxot1uwisza345h769
• wordSafe: 23456789CFGHJMPQRVWXcfghjmpqrvwx

Base-64

Supports conversion without padding, and
the URL/Filename-safe Base64 conversion.

Type	Available
Class	Base64Codec
Methods	fromBase64, toBase64

Available codecs:

• standard (RFC-4648): ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/ (default)
• urlSafe: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_
• bcrypt: ./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

BigInt

Supports both the Big-Endian and Little-Endian conversion

Type	Available
Class	BigIntCodec
Methods	fromBigInt, toBigInt

Available codecs:

• msbFirst: treats the input bytes in big-endian order
• lsbFirst: treats the input bytes in little-endian order

PHC String Format

Encoding and Decoding of Hash algorithm output according to the PHC string format specification.

Type	Available
Class	PHCSF
Constant	phcsf
Methods	toPHCSF, fromPHCSF

Getting Started

The following import will give you access to all of the algorithms in this package.

import 'package:hashlib_codecs/hashlib_codecs.dart';

Check the API Reference for details.

Usage

Examples can be found inside the example folder.

import 'package:hashlib_codecs/hashlib_codecs.dart';

void main() {
  var inp = [0x3, 0xF1];
  print("input => $inp");
  print('');

  print("binary => ${toBinary(inp)}");
  print('');

  print("octal => ${toOctal(inp)}");
  print('');

  print("hexadecimal => ${toHex(inp)}");
  print("hexadecimal (uppercase) => ${toHex(inp, upper: true)}");
  print('');

  print("base32 => ${toBase32(inp)}");
  print("base32 (lowercase) => ${toBase32(inp, lower: true)}");
  print("base32 (no padding) => ${toBase32(inp, padding: false)}");
  print("base32 (hex) => ${toBase32(inp, codec: Base32Codec.hex)}");
  print("base32 (z-base-32) => ${toBase32(inp, codec: Base32Codec.z)}");
  print("base32 (geohash) => ${toBase32(inp, codec: Base32Codec.geohash)}");
  print("base32 (crockford) => ${toBase32(inp, codec: Base32Codec.crockford)}");
  print("base32 (word-safe) => ${toBase32(inp, codec: Base32Codec.wordSafe)}");
  print('');

  print("base64 => ${toBase64(inp)}");
  print("base64url => ${toBase64(inp, url: true)}");
  print("base64 (no padding) => ${toBase64(inp, padding: false)}");
  print("bcrypt => ${toBase64(inp, codec: Base64Codec.bcrypt)}");
  print('');
}