seed-wasm

wasm enhanced seed crypto library for javascript requires wasm modules and simd.

API

interface SEEDOptions {
  key: Uint8Array;
  mode: 'SEED-CBC';
}
export declare class SEED {
  constructor(options: SEEDOptions);
  encrypt(input: Uint8Array, iv: Uint8Array): Uint8Array;
  decrypt(cipher: Uint8Array, iv: Uint8Array): Uint8Array;
}

Example

node --experimental-wasm-modules test.js

// test.js
import { randomBytes } from 'crypto';
import SEED from 'seed-wasm';

const key = randomBytes(16);
const iv = randomBytes(16);

const seed = new SEED({ key, mode: 'SEED-CBC' });

const plain = `Hello World`;
const cipher = Buffer.from(seed.encrypt(Buffer.from(plain), iv));
const decrypted = Buffer.from(seed.decrypt(cipher, iv)).toString();

console.log({ key, plain, cipher, decrypted });