plain text - > 단순 알고리즘 → 값이 동일하가 나옴

rainbowtable에서 찾으면 해킹가능

Bcrypt = salt + 시간지연

해쉬함수는 단방향 암호화

https://mvnrepository.com/artifact/org.springframework.security/spring-security-crypto

https://mvnrepository.com/artifact/commons-logging/commons-logging

// <https://mvnrepository.com/artifact/org.springframework.security/spring-security-crypto>
implementation 'org.springframework.security:spring-security-crypto:5.7.3'
// <https://mvnrepository.com/artifact/commons-logging/commons-logging>
implementation 'commons-logging:commons-logging:1.2'

super.getParameter(key) → plain text인 상태

→ 값 입력후 새로고침 한 결과