sphincs.js

Overview

The SPHINCS post-quantum cryptographic signing scheme compiled to WebAssembly using Emscripten. A simple JavaScript wrapper is provided to make SPHINCS easy to use in Web applications.

N.B. Unless interoperability with other SPHINCS implementations is a hard requirement, it is recommended to use supersphincs instead of this.

Example Usage

(async () => {
	const keyPair /*: {privateKey: Uint8Array; publicKey: Uint8Array} */ =
		await sphincs.keyPair()
	;

	const message /*: Uint8Array */ =
		new Uint8Array([104, 101, 108, 108, 111, 0]) // "hello"
	;

	/* Combined signatures */

	const signed /*: Uint8Array */ =
		await sphincs.sign(message, keyPair.privateKey)
	;

	const verified /*: Uint8Array */ =
		await sphincs.open(signed, keyPair.publicKey) // same as message
	;

	/* Detached signatures */
	
	const signature /*: Uint8Array */ =
		await sphincs.signDetached(message, keyPair.privateKey)
	;

	const isValid /*: boolean */ =
		await sphincs.verifyDetached(signature, message, keyPair.publicKey) // true
	;

	console.log(keyPair);
	console.log(message);
	console.log(signed);
	console.log(verified);
	console.log(signature);
	console.log(isValid);
})();

Changelog

Breaking changes in major versions:

2.0.0:

• As part of upgrading from asm.js to WebAssembly (with asm.js included as a fallback), the API is fully asynchronous.