我可以使用哪种算法进行Java加密？

Question

What algorithm can I use for creating an encryption program in Java? What if I want to use the same key for encrypting and decrypting?

Example: I type Hello world and use the key guy , so the words change into xgdsts@dtoll . If I want to decrypt it, I have to use the same key( guy ) so it'll become hello world again

Answer 1

您可以使用AES 。

Answer 2

You can use any algorithm you want, if you're willing to implement it. If you're asking what algorithms Java provides, the cryptography extension offers (from this list ):

• AES
• Blowfish
• DES
• DESede
• RC2, RC4, RC5
• RSA

I believe all those are symmetric (the encryption and decryption key is the same) except for RSA

Answer 3

Take a look at the Java Cryptography Extension . Here's a simple example .

Answer 4

I would stick to the industry standards - Triple-DES (3DES) or AES, whereby 3DES is slowly being replaced by AES. Libraries and source code for various languages are available, tested and validated.

I would use random generated keys for data encryption, and distribute these keys using asymetric methods (RSA) based on public/private key pairs.

Answer 5

您可以使用任何对称密钥算法