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Текущая директория: /opt/BitGoJS/node_modules/ethereumjs-util/dist
Просмотр файла: hash.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.rlphash = exports.ripemd160FromArray = exports.ripemd160FromString = exports.ripemd160 = exports.sha256FromArray = exports.sha256FromString = exports.sha256 = exports.keccakFromArray = exports.keccakFromHexString = exports.keccakFromString = exports.keccak256 = exports.keccak = void 0;
const keccak_1 = require("ethereum-cryptography/keccak");
const createHash = require('create-hash');
const externals_1 = require("./externals");
const bytes_1 = require("./bytes");
const helpers_1 = require("./helpers");
/**
* Creates Keccak hash of a Buffer input
* @param a The input data (Buffer)
* @param bits (number = 256) The Keccak width
*/
const keccak = function (a, bits = 256) {
(0, helpers_1.assertIsBuffer)(a);
switch (bits) {
case 224: {
return (0, keccak_1.keccak224)(a);
}
case 256: {
return (0, keccak_1.keccak256)(a);
}
case 384: {
return (0, keccak_1.keccak384)(a);
}
case 512: {
return (0, keccak_1.keccak512)(a);
}
default: {
throw new Error(`Invald algorithm: keccak${bits}`);
}
}
};
exports.keccak = keccak;
/**
* Creates Keccak-256 hash of the input, alias for keccak(a, 256).
* @param a The input data (Buffer)
*/
const keccak256 = function (a) {
return (0, exports.keccak)(a);
};
exports.keccak256 = keccak256;
/**
* Creates Keccak hash of a utf-8 string input
* @param a The input data (String)
* @param bits (number = 256) The Keccak width
*/
const keccakFromString = function (a, bits = 256) {
(0, helpers_1.assertIsString)(a);
const buf = Buffer.from(a, 'utf8');
return (0, exports.keccak)(buf, bits);
};
exports.keccakFromString = keccakFromString;
/**
* Creates Keccak hash of an 0x-prefixed string input
* @param a The input data (String)
* @param bits (number = 256) The Keccak width
*/
const keccakFromHexString = function (a, bits = 256) {
(0, helpers_1.assertIsHexString)(a);
return (0, exports.keccak)((0, bytes_1.toBuffer)(a), bits);
};
exports.keccakFromHexString = keccakFromHexString;
/**
* Creates Keccak hash of a number array input
* @param a The input data (number[])
* @param bits (number = 256) The Keccak width
*/
const keccakFromArray = function (a, bits = 256) {
(0, helpers_1.assertIsArray)(a);
return (0, exports.keccak)((0, bytes_1.toBuffer)(a), bits);
};
exports.keccakFromArray = keccakFromArray;
/**
* Creates SHA256 hash of an input.
* @param a The input data (Buffer|Array|String)
*/
const _sha256 = function (a) {
a = (0, bytes_1.toBuffer)(a);
return createHash('sha256').update(a).digest();
};
/**
* Creates SHA256 hash of a Buffer input.
* @param a The input data (Buffer)
*/
const sha256 = function (a) {
(0, helpers_1.assertIsBuffer)(a);
return _sha256(a);
};
exports.sha256 = sha256;
/**
* Creates SHA256 hash of a string input.
* @param a The input data (string)
*/
const sha256FromString = function (a) {
(0, helpers_1.assertIsString)(a);
return _sha256(a);
};
exports.sha256FromString = sha256FromString;
/**
* Creates SHA256 hash of a number[] input.
* @param a The input data (number[])
*/
const sha256FromArray = function (a) {
(0, helpers_1.assertIsArray)(a);
return _sha256(a);
};
exports.sha256FromArray = sha256FromArray;
/**
* 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
*/
const _ripemd160 = function (a, padded) {
a = (0, bytes_1.toBuffer)(a);
const hash = createHash('rmd160').update(a).digest();
if (padded === true) {
return (0, bytes_1.setLengthLeft)(hash, 32);
}
else {
return hash;
}
};
/**
* Creates RIPEMD160 hash of a Buffer input.
* @param a The input data (Buffer)
* @param padded Whether it should be padded to 256 bits or not
*/
const ripemd160 = function (a, padded) {
(0, helpers_1.assertIsBuffer)(a);
return _ripemd160(a, padded);
};
exports.ripemd160 = ripemd160;
/**
* Creates RIPEMD160 hash of a string input.
* @param a The input data (String)
* @param padded Whether it should be padded to 256 bits or not
*/
const ripemd160FromString = function (a, padded) {
(0, helpers_1.assertIsString)(a);
return _ripemd160(a, padded);
};
exports.ripemd160FromString = ripemd160FromString;
/**
* Creates RIPEMD160 hash of a number[] input.
* @param a The input data (number[])
* @param padded Whether it should be padded to 256 bits or not
*/
const ripemd160FromArray = function (a, padded) {
(0, helpers_1.assertIsArray)(a);
return _ripemd160(a, padded);
};
exports.ripemd160FromArray = ripemd160FromArray;
/**
* Creates SHA-3 hash of the RLP encoded version of the input.
* @param a The input data
*/
const rlphash = function (a) {
return (0, exports.keccak)(externals_1.rlp.encode(a));
};
exports.rlphash = rlphash;
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