签名和验证-Sign

介绍

Hutool针对java.security.Signature做了简化包装,包装类为:Sign,用于生成签名和签名验证。

对于签名算法,Hutool封装了JDK的Signature,具体介绍见:https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Signature

  1. // The RSA signature algorithm
  2. NONEwithRSA
  3. // The MD2/MD5 with RSA Encryption signature algorithm
  4. MD2withRSA
  5. MD5withRSA
  6. // The signature algorithm with SHA-* and the RSA
  7. SHA1withRSA
  8. SHA256withRSA
  9. SHA384withRSA
  10. SHA512withRSA
  11. // The Digital Signature Algorithm
  12. NONEwithDSA
  13. // The DSA with SHA-1 signature algorithm
  14. SHA1withDSA
  15. // The ECDSA signature algorithms
  16. NONEwithECDSA
  17. SHA1withECDSA
  18. SHA256withECDSA
  19. SHA384withECDSA
  20. SHA512withECDSA

使用

  1. byte[] data = "我是一段测试字符串".getBytes();
  2. Sign sign = SecureUtil.sign(SignAlgorithm.MD5withRSA);
  3. //签名
  4. byte[] signed = sign.sign(data);
  5. //验证签名
  6. boolean verify = sign.verify(data, signed);