Java: Is there any encoder which will not include forward slash during data encryption?

Question

I need to pass data in encrypted format with URL like this, http://localhost:8080/app/{encrypted_data}

So, is there any encoder which will not include forward slash(/) in encoding?

Please Note: I don't want to replace '/' by another character, manually, from the encoded data.

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Edited: comment from Oleg Estekhin of using Base64 URL safe Encoding is also working fine, I'm just adding an example over here.

EXAMPLE: Encode:

String str = "subjects?_d=1";
byte[] bytesEncoded = Base64.encodeBase64URLSafe((str.getBytes()));

Decode:

Base64 decoder = new Base64(true);
byte[] decodedBytes = decoder.decode(new String(bytesEncoded));
System.out.println(new String(decodedBytes));

Output:

c3ViamVjdHM_X2Q9MQ
subjects?_d=1

To simplify your problem, you might use https://localhost:8080/app/?data={encrypted_data} to simplify your problem. Are you looking to hide the data or to authenticate whether the data has been changed? — ErstwhileIII, Jun 18 '14 at 14:01
No man, the requirement is not to use '?' or pass as URL parameter. Secondly, I'm encoding because I'm passing one URL on that {encryped_data}, which again contains some '/'. :D — anij, Jun 18 '14 at 14:12
There are URL-safe Base64 variants, and most Base64 libraries provide an overloaded encode/decode methods that work with such variants. Check [iHarder Base64 URL_SAFE](http://iharder.sourceforge.net/current/java/base64/api/Base64.html#URL_SAFE) for example. — Oleg Estekhin, Jun 18 '14 at 16:17

score 2 · Accepted Answer · edited May 23 '17 at 12:02

2

example:

edited May 23 '17 at 12:02

Community

answered Jun 18 '14 at 14:13

Wajdy Essam

There is also a Base64 variant where `+` and `/` are replaced. See http://en.wikipedia.org/wiki/Base64 . Especially in **Java 8** there is now http://docs.oracle.com/javase/8/docs/api/java/util/Base64.Encoder.html – Joop Eggen Jun 24 '14 at 12:27

1 Answers1