Security is a crucial aspect in backend service development, particularly for applications handling sensitive data. A recent guide outlines the creation of an EncryptionService in NestJS that encompasses encryption, hashing, and token generation features. This multi-faceted service employs Argon2 hashing, temporary password generation, and AES-256 encryption with a CBC mode. The implementation also includes environment-based configuration for secure management of sensitive information like encryption keys.

Source: https://dev.to/imzihad21/comprehensive-encryption-and-security-service-in-nestjs-argon2-hashing-token-generation-and-aes-encryption-595o