ripple-keypairs
Version:
Cryptographic key pairs for the XRP Ledger
38 lines • 1.94 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const ed25519_1 = require("@noble/curves/ed25519");
const utils_1 = require("@xrplf/isomorphic/utils");
const assert_1 = __importDefault(require("../../utils/assert"));
const Sha512_1 = __importDefault(require("../../utils/Sha512"));
const ED_PREFIX = 'ED';
const ed25519 = {
deriveKeypair(entropy) {
const rawPrivateKey = Sha512_1.default.half(entropy);
const privateKey = ED_PREFIX + (0, utils_1.bytesToHex)(rawPrivateKey);
const publicKey = ED_PREFIX + (0, utils_1.bytesToHex)(ed25519_1.ed25519.getPublicKey(rawPrivateKey));
return { privateKey, publicKey };
},
sign(message, privateKey) {
assert_1.default.ok(message instanceof Uint8Array, 'message must be array of octets');
assert_1.default.ok(privateKey.length === 66, 'private key must be 33 bytes including prefix');
return (0, utils_1.bytesToHex)(ed25519_1.ed25519.sign(message, privateKey.slice(2)));
},
verify(message, signature, publicKey) {
// Unlikely to be triggered as these are internal and guarded by getAlgorithmFromKey
assert_1.default.ok(publicKey.length === 66, 'public key must be 33 bytes including prefix');
return ed25519_1.ed25519.verify(signature, message,
// Remove the 0xED prefix
publicKey.slice(2),
// By default, set zip215 to false for compatibility reasons.
// ZIP 215 is a stricter Ed25519 signature verification scheme.
// However, setting it to false adheres to the more commonly used
// RFC8032 / NIST186-5 standards, making it compatible with systems
// like the XRP Ledger.
{ zip215: false });
},
};
exports.default = ed25519;
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