@datadayrepos/libsodium-wrapper/dist/esm/curve25519.js

Typescript for accessing the libsodium.js for a small subset of functionalities.

import { crypto_box_keypair, crypto_box_seal, crypto_box_seal_open, from_base64, sodiumReady, to_base64, } from './lib';
export async function createCurve25519() {
    await sodiumReady;
    const curve25519KeyPair = crypto_box_keypair();
    return {
        private: curve25519KeyPair.privateKey,
        public: curve25519KeyPair.publicKey,
    };
}
export async function encryptWithPublicKey(publicKey, content) {
    await sodiumReady;
    const contentBytes = new TextEncoder().encode(content);
    const encryptedContent = crypto_box_seal(contentBytes, publicKey);
    return to_base64(encryptedContent);
}
export async function decryptWithPrivateKey(privateKey, publicKey, encryptedContent) {
    await sodiumReady;
    const encryptedBytes = from_base64(encryptedContent);
    const decryptedContent = crypto_box_seal_open(encryptedBytes, publicKey, privateKey);
    if (decryptedContent) {
        return new TextDecoder().decode(decryptedContent);
    }
    return null;
}