Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 68x 68x 68x 68x 48x 48x 48x 48x 48x 1515x 1515x 1515x 48x 96x 48x 68x 40x 40x 40x 1340x 1340x 1340x 1340x 15120x 1340x 1340x 1340x 15120x 15120x 15120x 1340x 872x 872x 40x 88x 40x | /*! micro-base58 - MIT License (c) 2021, Paul Miller (https://paulmillr.com) */
import { bytesToHex } from './encoding-hex';
/* See https://github.com/paulmillr/micro-base58 */
const B58_ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
const _58n = BigInt(58);
export function encodeB58(source: string | Uint8Array) {
Iif (source.length === 0) return '';
Iif (typeof source === 'string') {
if (typeof TextEncoder !== 'undefined') {
source = new TextEncoder().encode(source);
} else {
// note: only supports ASCII
source = new Uint8Array(source.split('').map(c => c.charCodeAt(0)));
}
}
// Convert Uint8Array to BigInt, Big Endian.
let x = BigInt('0x' + bytesToHex(source));
const output = [];
while (x > 0) {
const mod = Number(x % _58n);
x = x / _58n;
output.push(B58_ALPHABET[mod]);
}
for (let i = 0; source[i] === 0; i++) {
output.push(B58_ALPHABET[0]);
}
return output.reverse().join('');
}
export function decodeB58(output: string) {
Iif (output.length === 0) return new Uint8Array([]);
const bytes = [0];
for (let i = 0; i < output.length; i++) {
const char = output[i];
const value = B58_ALPHABET.indexOf(char);
Iif (value === undefined) {
throw new Error(
`base58.decode received invalid input. Character '${char}' is not in the base58 alphabet.`
);
}
for (let j = 0; j < bytes.length; j++) {
bytes[j] *= 58;
}
bytes[0] += value;
let carry = 0;
for (let j = 0; j < bytes.length; j++) {
bytes[j] += carry;
carry = bytes[j] >> 8;
bytes[j] &= 0xff;
}
while (carry > 0) {
bytes.push(carry & 0xff);
carry >>= 8;
}
}
for (let i = 0; i < output.length && output[i] === '1'; i++) {
bytes.push(0);
}
return new Uint8Array(bytes.reverse());
}
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