Re: [android-developers] Cipher.wrap() not working in Android 4.2?

On Thu, Dec 13, 2012 at 11:55 AM, Matthew Fleming <mgflem@gmail.com> wrote:
> I use the following code to encrypt a SecretKey with password-based
> encryption:
>
> Cipher pbeEncryptCipher = Cipher.getInstance("PBEWithMD5AndDES");

Try Cipher.getInstance("PBEWithMD5AndDES", "BC");

Also probably not a good idea to use both DES and MD5 in this day and age...

>

>
> In Android 4.2, but not in any previous version as far as I can tell, this
> throws a java.lang.UnsupportedOperationException. My understanding is that
> this is the result of something missing from the cryptographic service
> provider in Android 4.2, which was not missing in previous versions, ie an
> Android bug.
>

This is probably due to the shift to using OpenSSL (backed classes) as
the default
provider for pretty much everything. Depending on how you look at it,
it's not really
a bug, but you might want to file it at http://b.android.com().

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