Java simple encryption

java encryption des
Ran picture Ran · Aug 30, 2009 · Viewed 34.7k times · Source

I would like to encrypt a textual (configuration) file stored on disk. Trying to use DES encryption I've had fatal error on client machines, I later found out the algorithm could not handle accented characters (!) I suspect that was because I was using old packages (sun.misc.BASE64Decoder) - but I'm not sure that is the reason.

However, I'm looking for a simpler solution - I need a really simple encryption (I know some people would not agree on that) - not RSA of 128 bit keys or so, just obscuring the text from curious eyes.

It is really weird that I could not find a simple trivial solution on the web.

How can I implement a simple encryption scheme?

Answer

Mads Hansen picture Mads Hansen · Aug 30, 2009

Check out the Java Simplified Encryption (Jasypt).

Jasypt is a java library which allows the developer to add basic encryption capabilities to his/her projects with minimum effort, and without the need of having deep knowledge on how cryptography works.

  • High-security, standards-based encryption techniques, both for unidirectional and bidirectional encryption. Encrypt passwords, texts, numbers, binaries...
  • Transparent integration with Hibernate.
  • Suitable for integration into Spring-based applications and also transparently integrable with ACEGI (Spring Security).
  • Integrated capabilities for encrypting the configuration of applications (i.e. datasources).
  • Open API for use with any JCE provider.
  • ...and much more

Related questions

IllegalBlockSizeException: Input length must be multiple of 8 when decrypting with padded cipher

I have the below method: public String decrypt(String strToBeDecrypted) { try { strToBeDecrypted = URLDecoder.decode(strToBeDecrypted, "UTF-8"); DESKeySpec desKeySpec = new DESKeySpec(key); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey skey = keyFactory.generateSecret(desKeySpec); IvParameterSpec ivSpec = new IvParameterSpec(iv); cipher.init(Cipher.DECRYPT_…

Read More
Java PBEWithMD5AndDES

I am using password based encryption. My initial thought was to use AES to encrypt the file which contains passwords. Turns out password based encryption does not support AES. It uses DES. AFAIK des is not secure. Is PBEWithMD5AndDES …

Read More
How to use three keys with triple des(3des) in Java

I found a link in stackoverflow here use-3des-encryption-decryption-in-java,but in fact the method uses only two parameter:HG58YZ3CR9" and the "IvParameterSpec iv = new IvParameterSpec(new byte[8]);" But the most strong option of triple des could use three …

Read More