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nip04

README.md

Features

This package contains the encrypted direct message for Nostr as described in the NIP-04. This includes the encryption and decryption of messages between two parties using their key pairs.

Usage

import 'package:nip01/nip01.dart';
import 'package:nip04/nip04.dart';

final receiverKeyPair = KeyPair.generate();
final senderKeyPair = KeyPair.generate();

const encryptedContent =
    'zdiUBdrfA+HNM4qF67oKN2HcUv4kxnlRkpjHP5mqd9UrFuoSbwGAXQeTBUUrYO1svYBvhnpBK4s5XNVvXmvQ4yuji+v7KOwrDYjQzFveXLXXlyoFPakp5CD2BUdGkNn3pVzodWD84dgmfuuUDNYNfmm8EyjVyGBE1TmiBHawOI0MkhZ+uHf4VGhO6EIvhunLYQITe4YQvTRHiNlO4hoHh9kOjQLxYEY9AEkZ2EEPcfYpSkuYqUnvwUii7qzPJWU8o7PI86k4R3IryEf7hnN1DvZgZxRiWrwJwXP7P9PTiaorzjsEZWrKsus+65vU2e1F6L0jOPX0f5+/lZkSwF7Qgq4YZc/OlyJSqMDrz0SoMw0NbugGYOU/DxO4pP75o0NPIeG6lyr4jA4VsXMyA2NiNfFQRlGbRuk/qF8nmG4we70=?iv=yIIcMRiYu41Qlztn0asP3g==';

final decryptedMessage = Nip04.decrypt(
    encryptedContent,
    receiverKeyPair.privateKey,
    senderKeyPair.publicKey,
);
print(decryptedMessage);

const senderPublicKey =
    '7a29579ddcb698db1b93f7078c5020dc932de36cba53fedd6a0746005db7fd7f';

final encryptedMessage = Nip04.encrypt(
    'This is a secret message.',
    senderKeyPair.privateKey,
    receiverKeyPair.publicKey,
);

Additional information

This package is part of the Dartstr monorepo, which contains a set of modular and compatible Dart packages of different Nostr NIPS and utilities. Import just the packages of NIPS you need and keep your project lightweight. See the Dartstr monorepo for all available packages.