@0xpolygonid/js-sdk
Version:
SDK to work with Polygon ID
116 lines (115 loc) • 4.39 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Ed25519Provider = void 0;
const providerHelpers = __importStar(require("../provider-helpers"));
const ed25519_1 = require("@noble/curves/ed25519");
const utils_1 = require("../../utils");
/**
* Provider for Ed25519 keys
* @public
* @class Ed25519Provider
* @implements IKeyProvider interface
*/
class Ed25519Provider {
/**
* Creates an instance of Ed25519Provider.
* @param {KmsKeyType} keyType - kms key type
* @param {AbstractPrivateKeyStore} keyStore - key store for kms
*/
constructor(keyType, _keyStore) {
this.keyType = keyType;
this._keyStore = _keyStore;
}
/**
* get all keys
* @returns list of keys
*/
async list() {
const allKeysFromKeyStore = await this._keyStore.list();
return allKeysFromKeyStore.filter((key) => key.alias.startsWith(this.keyType));
}
/**
* generates a ed25519 key from a seed phrase
* @param {Uint8Array} seed - byte array seed
* @returns {Promise<KmsKeyId>} kms key identifier
*/
async newPrivateKeyFromSeed(seed) {
if (seed.length !== 32) {
throw new Error('Seed should be 32 bytes');
}
const publicKey = ed25519_1.ed25519.getPublicKey(seed);
const kmsId = {
type: this.keyType,
id: providerHelpers.keyPath(this.keyType, (0, utils_1.bytesToHex)(publicKey))
};
await this._keyStore.importKey({
alias: kmsId.id,
key: (0, utils_1.bytesToHex)(seed)
});
return kmsId;
}
/**
* Gets public key by kmsKeyId
* @param {KmsKeyId} keyId - key identifier
* @returns {Promise<string>} Public key as a hex string
*/
async publicKey(keyId) {
const privateKeyHex = await this.privateKey(keyId);
const publicKey = ed25519_1.ed25519.getPublicKey(privateKeyHex);
return (0, utils_1.bytesToHex)(publicKey);
}
/**
* signs prepared payload of size,
* with a key id
* @param {KmsKeyId} keyId - key identifier
* @param {Uint8Array} digest - data to sign (32 bytes)
* @returns {Promise<Uint8Array>} signature
*/
async sign(keyId, digest) {
const privateKeyHex = await this.privateKey(keyId);
return ed25519_1.ed25519.sign(digest, privateKeyHex);
}
/**
* Verifies a signature for the given message and key identifier.
* @param digest - The message to verify the signature against.
* @param signatureHex - The signature to verify, as a hexadecimal string.
* @param keyId - The key identifier to use for verification.
* @returns A Promise that resolves to a boolean indicating whether the signature is valid.
*/
async verify(digest, signatureHex, keyId) {
const publicKeyHex = await this.publicKey(keyId);
return ed25519_1.ed25519.verify(signatureHex, digest, publicKeyHex);
}
/**
* Retrieves the private key for a given keyId from the key store.
* @param {KmsKeyId} keyId - The identifier of the key to retrieve.
* @returns {Promise<string>} The private key associated with the keyId.
*/
async privateKey(keyId) {
return this._keyStore.get({ alias: keyId.id });
}
}
exports.Ed25519Provider = Ed25519Provider;