did-jwt
Version:
Library for Signing and Verifying JWTs that use DIDs as issuers and JWEs that use DIDs as recipients
23 lines • 1.04 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.createX25519ECDH = createX25519ECDH;
const ed25519_js_1 = require("@noble/curves/ed25519.js");
/**
* Wraps an X25519 secret key into an ECDH method that can be used to compute a shared secret with a public key.
* @param mySecretKey A `Uint8Array` of length 32 representing the bytes of my secret key
* @returns an `ECDH` method with the signature `(theirPublicKey: Uint8Array) => Promise<Uint8Array>`
*
* @throws 'invalid_argument:...' if the secret key size is wrong
*/
function createX25519ECDH(mySecretKey) {
if (mySecretKey.length !== 32) {
throw new Error('invalid_argument: incorrect secret key length for X25519');
}
return async (theirPublicKey) => {
if (theirPublicKey.length !== 32) {
throw new Error('invalid_argument: incorrect publicKey key length for X25519');
}
return ed25519_js_1.x25519.getSharedSecret(mySecretKey, theirPublicKey);
};
}
//# sourceMappingURL=ECDH.js.map