124-java-secure-coding

Identify and apply Java secure coding practices to reduce vulnerabilities, protect sensitive data, and harden application behaviour against common attack vectors.

Prerequisites: Run ./mvnw compile or mvn compile before applying any changes. If compilation fails, stop immediately — do not proceed until the project is in a valid state.

Core areas: Input validation with type, length, format, and range checks; SQL/OS/LDAP injection defence via PreparedStatement and parameterized APIs; attack surface minimisation through least-privilege permissions and removal of unused features; strong cryptographic algorithms for hashing (passwords with BCrypt/Argon2), encryption (AES-GCM), and digital signatures while avoiding deprecated ciphers (MD5, SHA-1, DES...

当您需要应用 Java 安全编码最佳实践时使用 - 包括验证不受信任的输入、通过参数化查询防御注入攻击、通过最小权限最小化攻击面、应用强大的加密算法、安全处理异常而不暴露敏感数据、在运行时管理机密、避免不安全的反序列化以及对输出进行编码以防止 XSS。 java 技能项目的一部分 来源：jabrena/cursor-rules-java。