Java中实现加密解密的函数列表

发布时间：2023-06-15 14:55:39

Java中实现加密解密的函数列表包含了许多常用的加密解密算法。以下是一些常用的加密解密函数列表：

1. 对称加密算法：AES、DES、3DES

2. 非对称加密算法：RSA、DSA、ECDSA、ECDH

3. 哈希函数：MD5、SHA-1、SHA-256

4. 消息认证码：HMAC-SHA1、HMAC-SHA256

5. 对称加密算法：

AES加密解密：

1) SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");

2) Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");

3) cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivspec);

4) byte[] encrypted = cipher.doFinal(plaintext);

5) cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, ivspec);

6) byte[] decrypted = cipher.doFinal(encrypted);

DES加密解密：

1) SecretKey key = KeyGenerator.getInstance("DES").generateKey();

2) Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");

3) cipher.init(Cipher.ENCRYPT_MODE, key);

4) byte[] encrypted = cipher.doFinal(plaintext);

5) cipher.init(Cipher.DECRYPT_MODE, key);

6) byte[] decrypted = cipher.doFinal(encrypted);

3DES加密解密：

1) SecretKey key = KeyGenerator.getInstance("DESede").generateKey();

2) Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");

3) cipher.init(Cipher.ENCRYPT_MODE, key);

4) byte[] encrypted = cipher.doFinal(plaintext);

5) cipher.init(Cipher.DECRYPT_MODE, key);

6) byte[] decrypted = cipher.doFinal(encrypted);

6. 非对称加密算法：

RSA加密解密：

1) KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");

2) keyPairGenerator.initialize(2048);

3) KeyPair keyPair = keyPairGenerator.generateKeyPair();

4) PublicKey publicKey = keyPair.getPublic();

5) PrivateKey privateKey = keyPair.getPrivate();

6) Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");

7) cipher.init(Cipher.ENCRYPT_MODE, publicKey);

8) byte[] encrypted = cipher.doFinal(plaintext);

9) cipher.init(Cipher.DECRYPT_MODE, privateKey);

10) byte[] decrypted = cipher.doFinal(encrypted);

DSA签名验签：

1) KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA");

2) keyPairGenerator.initialize(1024);

3) KeyPair keyPair = keyPairGenerator.generateKeyPair();

4) PublicKey publicKey = keyPair.getPublic();

5) PrivateKey privateKey = keyPair.getPrivate();

6) Signature signature = Signature.getInstance("DSA");

7) signature.initSign(privateKey);

8) signature.update(data);

9) byte[] sign = signature.sign();

10) signature.initVerify(publicKey);

11) signature.update(data);

12) boolean verify = signature.verify(sign);

ECDSA签名验签：

1) KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");

2) ECNamedCurveParameterSpec parameterSpec = ECNamedCurveTable.getParameterSpec("prime256v1");

3) keyPairGenerator.initialize(parameterSpec);

4) KeyPair keyPair = keyPairGenerator.generateKeyPair();

5) PublicKey publicKey = keyPair.getPublic();

6) PrivateKey privateKey = keyPair.getPrivate();

7) Signature signature = Signature.getInstance("SHA256withECDSA");

8) signature.initSign(privateKey);

9) signature.update(data);

10) byte[] sign = signature.sign();

11) signature.initVerify(publicKey);

12) signature.update(data);

13) boolean verify = signature.verify(sign);

ECDH密钥交换：

1) KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");

2) ECNamedCurveParameterSpec parameterSpec = ECNamedCurveTable.getParameterSpec("prime256v1");

3) keyPairGenerator.initialize(parameterSpec);

4) KeyPair keyPair1 = keyPairGenerator.generateKeyPair();

5) KeyPair keyPair2 = keyPairGenerator.generateKeyPair();

6) PublicKey publicKey1 = keyPair1.getPublic();

7) PrivateKey privateKey1 = keyPair1.getPrivate();

8) PublicKey publicKey2 = keyPair2.getPublic();

9) PrivateKey privateKey2 = keyPair2.getPrivate();

10) KeyAgreement keyAgreement1 = KeyAgreement.getInstance("ECDH");

11) keyAgreement1.init(privateKey1);

12) keyAgreement1.doPhase(publicKey2, true);

13) SecretKey secretKey1 = keyAgreement1.generateSecret("AES");

14) KeyAgreement keyAgreement2 = KeyAgreement.getInstance("ECDH");

15) keyAgreement2.init(privateKey2);

16) keyAgreement2.doPhase(publicKey1, true);

17) SecretKey secretKey2 = keyAgreement2.generateSecret("AES");

7. 哈希函数：

MD5：

1) MessageDigest messageDigest = MessageDigest.getInstance("MD5");

2) byte[] hash = messageDigest.digest(data);

SHA-1：

1) MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");

2) byte[] hash = messageDigest.digest(data);

SHA-256：

1) MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");

2) byte[] hash = messageDigest.digest(data);

8. 消息认证码：

HMAC-SHA1：

1) SecretKey secretKey = new SecretKeySpec(key, "HmacSHA1");

2) Mac mac = Mac.getInstance("HmacSHA1");

3) mac.init(secretKey);

4) byte[] hmac = mac.doFinal(data);

HMAC-SHA256：

1) SecretKey secretKey = new SecretKeySpec(key, "HmacSHA256");

2) Mac mac = Mac.getInstance("HmacSHA256");

3) mac.init(secretKey);

4) byte[] hmac = mac.doFinal(data);

总结：

Java中有许多的加密解密算法，使用这些算法可以保护数据的安全性。以上就是Java中实现加密解密的函数列表，可以根据需要选择合适的函数进行加密解密操作。