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Posted to users@tomcat.apache.org by Prathyusha Kanala <kn...@gmail.com> on 2015/04/06 20:19:05 UTC
org.apache.commons.codec.binary.Base64 question
Hi,
My web application was initially running on tomcat 7.0.53 and I
use org.apache.commons.codec.binary.Base64 for encryption and decryption.
Now the server has been updated to tomcat 7.0.57 and I get a java
Nullpointer error at c.doFinal line:
public static String make(String Data) throws Exception {
byte[] encodedCommons;
Key key = generateMakeKey();
Cipher c = Cipher.getInstance(ALGO);
c.init(Cipher.ENCRYPT_MODE, key);
* byte[] encVal = c.doFinal(Data.getBytes());*
encodedCommons = Base64.encodeBase64(encVal);
String encryptedValue = new String(encodedCommons);
//BASE64Encoder benc = new BASE64Encoder();
//String encryptedValue = benc.encode(encVal);
return encryptedValue;
}
Is the problem because I need to be using something other than the
org.apache.commons.codec.binary.Base64?
Please advise.
Regards.
Prathyusha
Re: org.apache.commons.codec.binary.Base64 question
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Prathyusha,
On 4/6/15 2:19 PM, Prathyusha Kanala wrote:
> My web application was initially running on tomcat 7.0.53 and I use
> org.apache.commons.codec.binary.Base64 for encryption and
> decryption.
Just so you're clear, base64 is an encoding and not an encryption.
It's only good for taking binary data and fitting it into a 7-bit
ASCII character space.
It does not offer any protection whatsoever.
- -chris
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Re: org.apache.commons.codec.binary.Base64 question
Posted by Konstantin Kolinko <kn...@gmail.com>.
2015-04-06 21:19 GMT+03:00 Prathyusha Kanala <kn...@gmail.com>:
> Hi,
>
> My web application was initially running on tomcat 7.0.53 and I
> use org.apache.commons.codec.binary.Base64 for encryption and decryption.
>
> Now the server has been updated to tomcat 7.0.57 and I get a java
> Nullpointer error at c.doFinal line:
>
> public static String make(String Data) throws Exception {
> byte[] encodedCommons;
> Key key = generateMakeKey();
> Cipher c = Cipher.getInstance(ALGO);
> c.init(Cipher.ENCRYPT_MODE, key);
> * byte[] encVal = c.doFinal(Data.getBytes());*
> encodedCommons = Base64.encodeBase64(encVal);
> String encryptedValue = new String(encodedCommons);
> //BASE64Encoder benc = new BASE64Encoder();
> //String encryptedValue = benc.encode(encVal);
> return encryptedValue;
> }
>
> Is the problem because I need to be using something other than the
> org.apache.commons.codec.binary.Base64?
Unlikely.
Run it with a debugger. (Debugging Tomcat is described in Wiki / FAQ).
It is likely that your "Data" parameter has null value.
What is the reason for that null value cannot be said with that little
information that you provided. You have to figure that out by
yourself.
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