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1 | | -import { bech32 } from '@scure/base' |
2 | 1 | import crypto from 'crypto' |
3 | | -import cryptojs from 'crypto-js' |
4 | | - |
5 | | -const ripemd160 = cryptojs.RIPEMD160, |
6 | | - sha256 = cryptojs.SHA256, |
7 | | - hexEncoding = cryptojs.enc.Hex |
8 | | - |
9 | | -/** |
10 | | - * Convert a string to an array of bytes. |
11 | | - * |
12 | | - * @param {string} string The input string to be converted. |
13 | | - * @returns {number[]} The bytes representing the input string. |
14 | | - */ |
15 | | -export const getBytes = (string: string): number[] => { |
16 | | - const arrayBytes: number[] = [] |
17 | | - const buffer = Buffer.from(string, 'utf16le') |
18 | | - for (let i = 0; i < buffer.length; i++) { |
19 | | - arrayBytes.push(buffer[i]) |
20 | | - } |
21 | | - return arrayBytes |
22 | | -} |
23 | | - |
24 | | -/** |
25 | | - * Convert a Buffer to a hexadecimal string. |
26 | | - * |
27 | | - * @param {Buffer} arr The input Buffer to be converted. |
28 | | - * @returns {string} The hexadecimal string representing the input Buffer. |
29 | | - */ |
30 | | -export const ab2hexstring = (arr: Buffer): string => { |
31 | | - let result = '' |
32 | | - for (let i = 0; i < arr.length; i++) { |
33 | | - let str = arr[i].toString(16) |
34 | | - str = str.length === 0 ? '00' : str.length === 1 ? '0' + str : str |
35 | | - result += str |
36 | | - } |
37 | | - return result |
38 | | -} |
39 | | - |
40 | | -/** |
41 | | - * Calculate `ripemd160(sha256(hex))` from a hexadecimal string. |
42 | | - * |
43 | | - * @param {string} hex The input hexadecimal string. |
44 | | - * @returns {string} The result of the hash operation. |
45 | | - * |
46 | | - * @throws {"sha256ripemd160 expects a string"} Thrown if a non-string input is provided. |
47 | | - * @throws {"invalid hex string length"} Thrown if the input hexadecimal string has an invalid length. |
48 | | - */ |
49 | | -export const sha256ripemd160 = (hex: string): string => { |
50 | | - if (typeof hex !== 'string') throw new Error('sha256ripemd160 expects a string') |
51 | | - if (hex.length % 2 !== 0) throw new Error(`invalid hex string length: ${hex}`) |
52 | | - const hexEncoded = hexEncoding.parse(hex) |
53 | | - const ProgramSha256 = sha256(hexEncoded) |
54 | | - return ripemd160(ProgramSha256).toString() |
55 | | -} |
56 | | - |
57 | | -/** |
58 | | - * Encode an address from a string or Buffer. |
59 | | - * |
60 | | - * @param {string | Buffer} value The input string or Buffer to be encoded. |
61 | | - * @param {string} prefix The prefix of the address. (optional) |
62 | | - * @param {BufferEncoding} type The buffer encoding type. It is used when a string is provided. (optional) |
63 | | - * @returns {string} The address generated from the input string or Buffer. |
64 | | - */ |
65 | | -export const encodeAddress = (value: string | Buffer, prefix = 'thor', type: BufferEncoding = 'hex'): string => { |
66 | | - const data = Buffer.isBuffer(value) ? value : Buffer.from(value, type) |
67 | | - const words = bech32.toWords(Uint8Array.from(data)) |
68 | | - return bech32.encode(prefix, words) |
69 | | -} |
70 | | - |
71 | | -/** |
72 | | - * Create an address from a public key. |
73 | | - * |
74 | | - * @param {Buffer} publicKey The public key in Buffer format. |
75 | | - * @returns {string} The address generated from the input public key (Buffer format). |
76 | | - */ |
77 | | -export const createAddress = (publicKey: Buffer): string => { |
78 | | - const hexed = ab2hexstring(publicKey) |
79 | | - const hash = sha256ripemd160(hexed) |
80 | | - const address = encodeAddress(hash, 'thor') |
81 | | - return address |
82 | | -} |
83 | 2 |
|
84 | 3 | /** |
85 | 4 | * Calculate pbkdf2 (Password-Based Key Derivation Function 2). |
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