@olympus-protocol/bip32-bls/src/crypto.js

A BIP32 compatible library using BLS12-381

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.doubleSha256 = exports.hmacSHA512 = exports.hash160 = void 0;
const createHash = require("create-hash");
const createHmac = require("create-hmac");
function hash160(buffer) {
    const sha256Hash = createHash('sha256')
        .update(buffer)
        .digest();
    try {
        return createHash('rmd160')
            .update(sha256Hash)
            .digest();
    }
    catch (err) {
        return createHash('ripemd160')
            .update(sha256Hash)
            .digest();
    }
}
exports.hash160 = hash160;
function hmacSHA512(key, data) {
    return createHmac('sha512', key)
        .update(data)
        .digest();
}
exports.hmacSHA512 = hmacSHA512;
function doubleSha256(buffer) {
    const sha256Hash = createHash('sha256')
        .update(buffer)
        .digest();
    return createHash('sha256')
        .update(sha256Hash)
        .digest();
}
exports.doubleSha256 = doubleSha256;