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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/ox/_esm/core
Просмотр файла: X25519.js
import { x25519 } from '@noble/curves/ed25519';
import * as Bytes from './Bytes.js';
import * as Hex from './Hex.js';
/** Re-export of noble/curves X25519 utilities. */
export const noble = x25519;
/**
* Creates a new X25519 key pair consisting of a private key and its corresponding public key.
*
* @example
* ```ts twoslash
* import { X25519 } from 'ox'
*
* const { privateKey, publicKey } = X25519.createKeyPair()
* ```
*
* @param options - The options to generate the key pair.
* @returns The generated key pair containing both private and public keys.
*/
export function createKeyPair(options = {}) {
const { as = 'Hex' } = options;
const privateKey = randomPrivateKey({ as });
const publicKey = getPublicKey({ privateKey, as });
return {
privateKey: privateKey,
publicKey: publicKey,
};
}
/**
* Computes the X25519 public key from a provided private key.
*
* @example
* ```ts twoslash
* import { X25519 } from 'ox'
*
* const publicKey = X25519.getPublicKey({ privateKey: '0x...' })
* ```
*
* @param options - The options to compute the public key.
* @returns The computed public key.
*/
export function getPublicKey(options) {
const { as = 'Hex', privateKey } = options;
const privateKeyBytes = Bytes.from(privateKey);
const publicKeyBytes = x25519.getPublicKey(privateKeyBytes);
if (as === 'Hex')
return Hex.fromBytes(publicKeyBytes);
return publicKeyBytes;
}
/**
* Computes a shared secret using X25519 elliptic curve Diffie-Hellman between a private key and a public key.
*
* @example
* ```ts twoslash
* import { X25519 } from 'ox'
*
* const { privateKey: privateKeyA } = X25519.createKeyPair()
* const { publicKey: publicKeyB } = X25519.createKeyPair()
*
* const sharedSecret = X25519.getSharedSecret({
* privateKey: privateKeyA,
* publicKey: publicKeyB
* })
* ```
*
* @param options - The options to compute the shared secret.
* @returns The computed shared secret.
*/
export function getSharedSecret(options) {
const { as = 'Hex', privateKey, publicKey } = options;
const privateKeyBytes = Bytes.from(privateKey);
const publicKeyBytes = Bytes.from(publicKey);
const sharedSecretBytes = x25519.getSharedSecret(privateKeyBytes, publicKeyBytes);
if (as === 'Hex')
return Hex.fromBytes(sharedSecretBytes);
return sharedSecretBytes;
}
/**
* Generates a random X25519 private key.
*
* @example
* ```ts twoslash
* import { X25519 } from 'ox'
*
* const privateKey = X25519.randomPrivateKey()
* ```
*
* @param options - The options to generate the private key.
* @returns The generated private key.
*/
export function randomPrivateKey(options = {}) {
const { as = 'Hex' } = options;
const bytes = x25519.utils.randomPrivateKey();
if (as === 'Hex')
return Hex.fromBytes(bytes);
return bytes;
}
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