How to use base64 to encrypt and decrypt?

Question

I am trying to convert byte array to base64 format in java.
my problem is sun.misc.BASE64Decoder cannot be used? Is there any alternative?

byte[] buf = new byte[] { 0x12, 0x23 };
String s = new sun.misc.BASE64Encoder().encode(buf);

Your question is entirely unclear. What does "Base64 does not support to my program" mean? What are you trying to do? Are you aware that base64 is just a way of representing binary data in text? (It's not encryption at all.) Please read http://tinyurl.com/so-hints — Jon Skeet, Jun 19 '12 at 07:08
See answer http://stackoverflow.com/questions/469695/decode-base64-data-in-java — YMomb, Jun 19 '12 at 07:08

score 0 · Answer 1 · answered Jun 19 '12 at 07:12

0

I would recommend using this library: MigBase64

Use it like this:

 byte [] buf = new byte[]{0x12, 0x23};
 String s = Base64.encode(buf);

answered Jun 19 '12 at 07:12

rtheunissen

you should download it from http://migbase64.sourceforge.net/ and add the jar to your classpath. – Subin Sebastian Jun 19 '12 at 07:21
It's not a jar actually, it's just a source file. – rtheunissen Jun 19 '12 at 07:36

user207421 · Answer 2 · 2012-06-19T07:31:38.510

0

Base64 is not an encryption technique. It is just an encoding mechanism. If you're looking for enryption you're barking up the wrong tree.
import sun.misc.BASE64Decoder is not a 'header file', it is an import statement. It may not compile if you are using a non-Sun/Oracle JDK. It may give you warnings which you should heed. As you haven't actually said what problem you are having it is impossible to comment further.

edited Jun 19 '12 at 07:31

answered Jun 19 '12 at 07:18

user207421

Thanks. I import this statement i got a error message is 'Access restriction: The type BASE64Decoder is not accessible due to restriction on required library C:\Program Files\Java\jre6\lib\rt.jar' – Jahir Jun 19 '12 at 07:23
@Jahir So (a) adjust your IDE not to treat that as an error, or (b) use another Base-64 encoder such as the Apache one. – user207421 Jun 19 '12 at 07:31

2 Answers2