containers

I'm building an application for secure messaging between multiple clients. In order to achieve that, I encrypt the message with AES, then I encrypt the AES key with the recipients public RSA key, then I send these two components (RSA-encrypted AES key and AES-encrypted message) to the recipient. The whole process works well and without any errors. Now I ran into a problem and I'm wondering what would be the best practice: In order to persist the private and public key of one participent, I need to store the key pair. Saving it somewhere as an XML file is possible, but obviously not an option.

I need to break open a MS Word file (.doc) and extract its constituent files ('[1]CompObj', 'WordDocument' etc). Something like 7-zip can be used to do this manually but I need to do this programatically. I've gathered that a Word document is an OLE container (hence why 7-zip can be used to view its contents) but I can't work out how to (using C++): open the OLE container extract each constituent file and save it to disk I've found a couple of examples of OLE automation (eg here ) but what I want to do seems to be less common and I've found no specific examples. If anyone has any idea of

I'd like to ask the Java pros here a question about my current study that I am about to do - what are the key contributors to the differences in efficiency of various servlet containers? I need to compare Tomcat/JBoss/Glassfish/Jetty etc. and I need to know what "factors" may affect the results in the most significant way? I am going to write mock applications for that purpose, so any recommendation for a Java feature/framework/library etc. that I might implement there so that I can greatly increase the load of the containers (actually the containers, I do not care about the load of the

Strange problem, I have controller which uses \Symfony\Component\DependencyInjection\ContainerAwareTrait class MainController { use \Symfony\Component\DependencyInjection\ContainerAwareTrait; /** * @Route("/", name="_index") * @Template() */ public function indexAction() { var_dump($this->container); return array(); } } but result is NULL. Tried on: Symfony 2.5.* MAMP 3.0 PHP 5.4 5.5 My searches have not helped me. I think the solution is easy. Any ideas how to trace this error? UPD: When i extend from Controller, container is available and everything is working properly. But according to

I have list of Guid's List<Guid> MyList; I need to copy its contents to Array Guid[] Please recommend me a pretty solution Romain Verdier As Luke said in comments, the particular List<T> type already has a ToArray() method. But if you're using C# 3.0, you can leverage the ToArray() extension method on any IEnumerable instance (that includes IList , IList<T> , collections, other arrays, etc.) var myList = new List<Guid> {Guid.NewGuid(), Guid.NewGuid()}; Guid[] array = myList.ToArray(); // instance method IList<Guid> myList2 = new List<Guid> {Guid.NewGuid(), Guid.NewGuid()}; Guid[] array2 =

I have this simple piece of code: #include <iostream> #include <set> using std::set; int main(int argc, char argv) { set<int> myset; set<int>::iterator it_l, it_u; myset.insert(10); it_l = myset.lower_bound(11); it_u = myset.upper_bound(9); std::cout << *it_l << " " << *it_u << std::endl; } This prints 1 as lower bound for 11, and 10 as upper bound for 9. I don't understand why 1 is printed. I was hoping to use these two methods to get a range of values for given upper bound / lower bound. From cppreference.com on std::set::lower_bound : Return value Iterator pointing to the first element that

I'm trying to run the binary mongodb in Alpine 64bit Linux for a docker container. But when running the command: ./mongodb the following error occurs: bash-4.3 # ./mongod bash: ./mongod: No such file or directory. For what reason it can not run it? If you are still needing to use a package then there is now one available in the testing repository you can have a try with. http://dl-3.alpinelinux.org/alpine/edge/testing/x86_64/ echo 'http://dl-3.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories apk upgrade --update apk add mongodb Because the binary distribution of MongoDB is linked

Is it possible to store a pcm audio file into .mp4 file? I used ffmpeg command "ffmpeg -i tempA.wav -acodec copy temp.mp4" but unable to store it in mp4 container file. Input #0, wav, from 'tempA.wav': Duration: 00:01:36.51, bitrate: 128 kb/s Stream #0.0: Audio: pcm_s16le, 8000 Hz, 1 channels, s16, 128 kb/s [mp4 @ 0x7d70e0] Tag [1][0][0][0]/0x00000001 incompatible with output codec id '65536' Output #0, mp4, to 'temp.mp4': Stream #0.0: Audio: pcm_s16le, 8000 Hz, 1 channels, 128 kb/s Stream mapping: Stream #0.0 -> #0.0 Could not write header for output file #0 (incorrect codec parameters ?)