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Текущая директория: /opt/BitGoJS/node_modules/ethereumjs-abi/node_modules/ethereumjs-util/dist
Просмотр файла: hash.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.rlphash = exports.ripemd160 = exports.sha256 = exports.keccak256 = exports.keccak = void 0;
var _a = require('ethereum-cryptography/keccak'), keccak224 = _a.keccak224, keccak384 = _a.keccak384, k256 = _a.keccak256, keccak512 = _a.keccak512;
var createHash = require('create-hash');
var ethjsUtil = require('ethjs-util');
var rlp = require("rlp");
var bytes_1 = require("./bytes");
/**
* Creates Keccak hash of the input
* @param a The input data (Buffer|Array|String|Number) If the string is a 0x-prefixed hex value
* it's interpreted as hexadecimal, otherwise as utf8.
* @param bits The Keccak width
*/
exports.keccak = function (a, bits) {
if (bits === void 0) { bits = 256; }
if (typeof a === 'string' && !ethjsUtil.isHexString(a)) {
a = Buffer.from(a, 'utf8');
}
else {
a = bytes_1.toBuffer(a);
}
if (!bits)
bits = 256;
switch (bits) {
case 224: {
return keccak224(a);
}
case 256: {
return k256(a);
}
case 384: {
return keccak384(a);
}
case 512: {
return keccak512(a);
}
default: {
throw new Error("Invald algorithm: keccak" + bits);
}
}
};
/**
* Creates Keccak-256 hash of the input, alias for keccak(a, 256).
* @param a The input data (Buffer|Array|String|Number)
*/
exports.keccak256 = function (a) {
return exports.keccak(a);
};
/**
* Creates SHA256 hash of the input.
* @param a The input data (Buffer|Array|String|Number)
*/
exports.sha256 = function (a) {
a = bytes_1.toBuffer(a);
return createHash('sha256')
.update(a)
.digest();
};
/**
* Creates RIPEMD160 hash of the input.
* @param a The input data (Buffer|Array|String|Number)
* @param padded Whether it should be padded to 256 bits or not
*/
exports.ripemd160 = function (a, padded) {
a = bytes_1.toBuffer(a);
var hash = createHash('rmd160')
.update(a)
.digest();
if (padded === true) {
return bytes_1.setLength(hash, 32);
}
else {
return hash;
}
};
/**
* Creates SHA-3 hash of the RLP encoded version of the input.
* @param a The input data
*/
exports.rlphash = function (a) {
return exports.keccak(rlp.encode(a));
};
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