Package com.bank.auth_service.config

Class KeyConfig

java.lang.Object
com.bank.auth_service.config.KeyConfig
@Configuration public class KeyConfig extends Object
Configuration class for RSA-based JWT encoder and decoder beans using Nimbus JOSE + JWT.

This class loads RSA public and private keys from application properties and uses them to:

  • Sign JWT tokens with the private key (via JwtEncoder)
  • Verify JWT signatures with the public key (via JwtDecoder)

Note: This configuration uses asymmetric cryptography (RSA) and the RS256 algorithm (SHA-256 with RSA signature). The tokens are signed but not encrypted — anyone with the public key can verify the token, but its content is readable unless encrypted separately.

Since:
1.0.0
Version:
1.0.0, 06/23/2025
Author:
Fernando Cruz Cavina

  • Constructor Summary

    Constructors
    Constructor
    Description
    KeyConfig()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    org.springframework.security.oauth2.jwt.JwtDecoder
    jwtDecoder()
    Creates a JwtDecoder bean using the configured RSA public key.
    org.springframework.security.oauth2.jwt.JwtEncoder
    jwtEncoder()
    Creates a JwtEncoder bean using the configured RSA public and private keys.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • KeyConfig

      public KeyConfig()

  • Method Details

    • jwtDecoder

      @Bean public org.springframework.security.oauth2.jwt.JwtDecoder jwtDecoder()
      Creates a JwtDecoder bean using the configured RSA public key.
      Returns:
      a JwtDecoder for verifying JWT tokens

    • jwtEncoder

      @Bean public org.springframework.security.oauth2.jwt.JwtEncoder jwtEncoder()
      Creates a JwtEncoder bean using the configured RSA public and private keys.
      Returns:
      a JwtEncoder for signing JWT tokens