Hi,
I'm encrypting the string like this...
private static String encryptString(String str) {
StringBuffer sb = new StringBuffer(str);
int lenStr = str.length();
int lenKey = key.length();
for (int i = 0, j = 0; i < lenStr; i++, j++) {
if (j >= lenKey) {
j = 0;
}
sb.setCharAt(i, (char) (str.charAt(i) ^
key.charAt(j)));
}
return sb.toString();
}
...and save the string using low-level datastore api for Java (simply
setting the property on an entity and putting it to the datastore).
I've used this for many months now, but since a few days(?) I'm not
able to load the strings back from the datastore.
So I guess that something under the hood must have been changed with
the string encoding.
I could of course do some Base64 in the future but that will still not
help me to get back the strings from the datastore that are already
stored :-(
Daniel
On 17 Jun., 19:31, "Ikai L (Google)" <ika...@google.com> wrote:
> From an off-list email - looks like you are having issues when you try to
> view the entities, since you did an XOR on the String.
>
> The error is happening when the String is being converted to UTF8. Can you
> post the code demonstrating how you are saving the Strings?
>
> On Thu, Jun 17, 2010 at 10:11 AM, Ikai L (Google) <ika...@google.com> wrote:
>
>
>
>
>
> > Can you post reproduction steps? What do you mean when you say you get
> > strange results?
>
> > On Thu, Jun 17, 2010 at 8:58 AM, dflorey <daniel.flo...@gmail.com> wrote:
>
> >> I'm in trouble, because some of my datastore entities are not
> >> accessible anymore. I can request them using queries, but when trying
> >> to access certain properties, I get strange results.
> >> When trying to open these entities from the datastore viewer I get 500
> >> errors.
> >> Any ideas? I've the feeling that it has to do with encoded Strings
> >> that I'm storing. Has something in the encoding been changed recently?
>
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> > --
> > Ikai Lan
> > Developer Programs Engineer, Google App Engine
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>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
> Blog:http://googleappengine.blogspot.com
> Twitter:http://twitter.com/app_engine
> Reddit:http://www.reddit.com/r/appengine
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