NSString is NULL
<p>hiiii freinds please any guys say me why str is NULL i will be creasy </p>

<pre><code>NSString *strData = @"issam  bey"   ;

NSMutableData *objNSData = [NSMutableData dataWithData:[strData dataUsingEncoding:NSISOLatin1StringEncoding]];


objNSData = [objNSData EncryptAES:@"12345678901234561234567890123456"];
//NSString* decryptedStr = [[NSString alloc] initWithData:objNSData encoding:NSASCIIStringEncoding];

NSString *str=[[NSString alloc] initWithData: objNSData encoding:NSUTF8StringEncoding];

NSLog(@"%@",str);
</code></pre>
