bech32
v2.0.0
Published
Bech32 encoding / decoding
Downloads
5,601,094
Readme
bech32
A BIP173/BIP350 compatible Bech32/Bech32m encoding/decoding library.
Example
let { bech32, bech32m } = require('bech32')
bech32.decode('abcdef1qpzry9x8gf2tvdw0s3jn54khce6mua7lmqqqxw')
// => {
// prefix: 'abcdef',
// words: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31]
// }
bech32m.decode('abcdef1l7aum6echk45nj3s0wdvt2fg8x9yrzpqzd3ryx')
// => {
// prefix: 'abcdef',
// words: [31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
// }
// toWords etc. are available on both bech32 and bech32m objects
let words = bech32.toWords(Buffer.from('foobar', 'utf8'))
bech32.encode('foo', words)
// => 'foo1vehk7cnpwgry9h96'
bech32m.encode('foo', words)
// => 'foo1vehk7cnpwgkc4mqc'Advanced
BIP173 enforces a limitation of 90 characters, if extend the LIMIT parameter beyond this, be aware that the effectiveness of checksum decreases as the length increases.
It is highly recommended NOT exceed 1023 characters, as the module could only guarantee detecting 1 error.
Credits
- Peter Wuille for the reference JavaScript implementation, and for authoring the Bech32 BIP173 and Bech32m BIP350.