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expo-hybrid-crypto

v1.0.3

Published

My new module

Readme

expo-hybrid-crypto

Criptografia híbrida nativa para aplicações Expo / React Native, utilizando:

  • 🔐 AES-256-GCM para criptografia de dados grandes
  • 🔑 RSA-OAEP (SHA-256) para criptografar a chave AES
  • 📱 Implementação nativa (Swift + Kotlin) via Expo Modules API
  • ⚡ Compatível com Expo Managed Workflow + EAS Build
  • 🧩 API simples, segura e pronta para produção

✨ Motivação

Bibliotecas JavaScript puras de criptografia costumam apresentar:

  • problemas de performance
  • incompatibilidade com EAS Build
  • dependências nativas instáveis
  • APIs inconsistentes entre plataformas

O expo-hybrid-crypto resolve isso fornecendo uma implementação 100% nativa, equivalente ao uso do crypto do Node.js, porém segura e estável no ambiente mobile.


🔐 Arquitetura de Criptografia

O fluxo implementado é o mesmo padrão usado em sistemas bancários e APIs seguras:

  1. Gera uma chave AES-256 aleatória
  2. Criptografa os dados com AES-256-GCM
  3. Criptografa a chave AES usando RSA-OAEP (SHA-256)
  4. Retorna tudo em Base64, pronto para envio ao backend
┌──────────────┐
│   Dados      │
└──────┬───────┘
       │ AES-256-GCM
       ▼
┌──────────────┐
│ Ciphertext   │
└──────┬───────┘
       │ RSA-OAEP
       ▼
┌──────────────┐
│ AES Key Enc  │
└──────────────┘