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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@cosmjs/crypto/build
Просмотр файла: libsodium.js
"use strict";
// Keep all classes requiring libsodium-js in one file as having multiple
// requiring of the libsodium-wrappers module currently crashes browsers
//
// libsodium.js API: https://gist.github.com/webmaster128/b2dbe6d54d36dd168c9fabf441b9b09c
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Xchacha20poly1305Ietf = exports.xchacha20NonceLength = exports.Ed25519 = exports.Ed25519Keypair = exports.Argon2id = exports.isArgon2idOptions = void 0;
const utils_1 = require("@cosmjs/utils");
const libsodium_wrappers_1 = __importDefault(require("libsodium-wrappers"));
function isArgon2idOptions(thing) {
if (!(0, utils_1.isNonNullObject)(thing))
return false;
if (typeof thing.outputLength !== "number")
return false;
if (typeof thing.opsLimit !== "number")
return false;
if (typeof thing.memLimitKib !== "number")
return false;
return true;
}
exports.isArgon2idOptions = isArgon2idOptions;
class Argon2id {
static async execute(password, salt, options) {
await libsodium_wrappers_1.default.ready;
return libsodium_wrappers_1.default.crypto_pwhash(options.outputLength, password, salt, // libsodium only supports 16 byte salts and will throw when you don't respect that
options.opsLimit, options.memLimitKib * 1024, libsodium_wrappers_1.default.crypto_pwhash_ALG_ARGON2ID13);
}
}
exports.Argon2id = Argon2id;
class Ed25519Keypair {
constructor(privkey, pubkey) {
this.privkey = privkey;
this.pubkey = pubkey;
}
// a libsodium privkey has the format `<ed25519 privkey> + <ed25519 pubkey>`
static fromLibsodiumPrivkey(libsodiumPrivkey) {
if (libsodiumPrivkey.length !== 64) {
throw new Error(`Unexpected key length ${libsodiumPrivkey.length}. Must be 64.`);
}
return new Ed25519Keypair(libsodiumPrivkey.slice(0, 32), libsodiumPrivkey.slice(32, 64));
}
toLibsodiumPrivkey() {
return new Uint8Array([...this.privkey, ...this.pubkey]);
}
}
exports.Ed25519Keypair = Ed25519Keypair;
class Ed25519 {
/**
* Generates a keypair deterministically from a given 32 bytes seed.
*
* This seed equals the Ed25519 private key.
* For implementation details see crypto_sign_seed_keypair in
* https://download.libsodium.org/doc/public-key_cryptography/public-key_signatures.html
* and diagram on https://blog.mozilla.org/warner/2011/11/29/ed25519-keys/
*/
static async makeKeypair(seed) {
await libsodium_wrappers_1.default.ready;
const keypair = libsodium_wrappers_1.default.crypto_sign_seed_keypair(seed);
return Ed25519Keypair.fromLibsodiumPrivkey(keypair.privateKey);
}
static async createSignature(message, keyPair) {
await libsodium_wrappers_1.default.ready;
return libsodium_wrappers_1.default.crypto_sign_detached(message, keyPair.toLibsodiumPrivkey());
}
static async verifySignature(signature, message, pubkey) {
await libsodium_wrappers_1.default.ready;
return libsodium_wrappers_1.default.crypto_sign_verify_detached(signature, message, pubkey);
}
}
exports.Ed25519 = Ed25519;
/**
* Nonce length in bytes for all flavours of XChaCha20.
*
* @see https://libsodium.gitbook.io/doc/advanced/stream_ciphers/xchacha20#notes
*/
exports.xchacha20NonceLength = 24;
class Xchacha20poly1305Ietf {
static async encrypt(message, key, nonce) {
await libsodium_wrappers_1.default.ready;
const additionalData = null;
return libsodium_wrappers_1.default.crypto_aead_xchacha20poly1305_ietf_encrypt(message, additionalData, null, // secret nonce: unused and should be null (https://download.libsodium.org/doc/secret-key_cryptography/aead/chacha20-poly1305/xchacha20-poly1305_construction)
nonce, key);
}
static async decrypt(ciphertext, key, nonce) {
await libsodium_wrappers_1.default.ready;
const additionalData = null;
return libsodium_wrappers_1.default.crypto_aead_xchacha20poly1305_ietf_decrypt(null, // secret nonce: unused and should be null (https://download.libsodium.org/doc/secret-key_cryptography/aead/chacha20-poly1305/xchacha20-poly1305_construction)
ciphertext, additionalData, nonce, key);
}
}
exports.Xchacha20poly1305Ietf = Xchacha20poly1305Ietf;
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