Description:
base x
base-x #
Fast base encoding / decoding of any given alphabet using bitcoin style leading zero compression.
WARNING: This module is NOT RFC3548 compliant, it cannot be used for base16 (hex), base32, or base64 encoding in a standards compliant manner.
Example #
Base58
import 'package:base_x/base_x.dart';
var base58 = BaseXCodec('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz');
var hash = Uint8List.fromList([14, 251, 24, 220, 202, 235, 97, 232, 85, 229, 109, 188, 53, 146, 43, 36, 246, 238, 110, 55, 202, 163, 160, 123, 169, 35]);
print(base58.encode(hash));
///TcASfmyoFiNobNaCHeiPMkWgGmovoxk1sqk
print(base58.decode('TcASfmyoFiNobNaCHeiPMkWgGmovoxk1sqk'));
///[14, 251, 24, 220, 202, 235, 97, 232, 85, 229, 109, 188, 53, 146, 43, 36, 246, 238, 110, 55, 202, 163, 160, 123, 169, 35]
copied to clipboard
Alphabets #
See below for a list of commonly recognized alphabets, and their respective base.
Base
Alphabet
2
01
8
01234567
11
0123456789a
16
0123456789abcdef
32
0123456789ABCDEFGHJKMNPQRSTVWXYZ
32
ybndrfg8ejkmcpqxot1uwisza345h769 (z-base-32)
36
0123456789abcdefghijklmnopqrstuvwxyz
58
123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz
62
0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
64
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/
66
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.!~
LICENSE MIT #
A direct derivation of the base58 implementation from bitcoin/bitcoin, generalized for variable length alphabets.
License
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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