import { xor } from "https://deno.land/std@0.145.0/node/_crypto/crypto_browserify/public_encrypt/xor.js";
The Standard Library has been moved to JSR. See the blog post for details.
import { xor } from "https://deno.land/std@0.145.0/node/_crypto/crypto_browserify/public_encrypt/xor.js";