To create a single random number stream, use the RandStream constructor. To create multiple independent random number streams, use RandStream.create. The rng function provides a simple interface to create a new global stream. Stream = RandStream.getGlobalStream returns the global random number stream, that is, the one currently used by the rand.

Generate Stream Key

Jul 16, 2018 It is likely that if you’re reading this, you have watched more than a few Twitch streams. It is also likely that you think you could do as well or even better than those you watched. If that is the case, this tutorial is going to show you how to get your stream key for Twitch and set up for PC streaming. More advanced users can create a Reusable stream key. You can either choose to specify a resolution and framerate or opt to make a variable resolution stream key. Reusable stream keys can be used between multiple live events - set it up once and never think about it. Jul 10, 2019 Configuring Your Stream. Select Broadcast Settings from the settings menu. Select Twitch as your Streaming Service and click Optimize on the bottom-left of the menu.

In cryptography, a keystream is a stream of random or pseudorandom characters that are combined with a plaintext message to produce an encrypted message (the ciphertext).

The 'characters' in the keystream can be bits, bytes, numbers or actual characters like A-Z depending on the usage case.

How To Find Your Stream Key

Usually each character in the keystream is either added, subtracted or XORed with a character in the plaintext to produce the ciphertext, using modular arithmetic.

Keystreams are used in the one-time pad cipher and in most stream ciphers. Block ciphers can also be used to produce keystreams. For instance, CTR mode is a block mode that makes a block cipher produce a keystream and thus turns the block cipher into a stream cipher.

Example[edit]

In this simple example we use the English alphabet of 26 characters from a-z. Thus we can not encrypt numbers, commas, spaces and other symbols. The random numbers in the keystream then have to be at least between 0 and 25.

What Is My Stream Key

To encrypt we add the keystream numbers to the plaintext. And to decrypt we subtract the same keystream numbers from the ciphertext to get the plaintext.

How To Get A Stream Key

If a ciphertext number becomes larger than 25 we wrap it to a value between 0-25. Thus 26 becomes 0 and 27 becomes 1 and so on. (Such wrapping is called modular arithmetic.)

Here the plaintext message 'attack at dawn' is combined by addition with the keystream 'kjcngmlhylyu' and produces the ciphertext 'kcvniwlabluh'.

References[edit]

• Handbook of Applied Cryptography by Menezes, van Oorschot and Vanstone (2001), chapter 1, 6 and 7.

The following short video explains how to create a live event in Microsoft Stream.

Schedule the live event

1. In Stream, go to Create > Live event.

2. Fill in the details pane with a name, description, and event time. You can also upload a thumbnail as a poster image for users to see.

   Note that as you fill in information, an automatic slate will generate to let your users know information about the event before it starts.

3. Select the permissions pane and set who you want access to the video and which groups for it to be displayed in for increased discoverability.

4. Optionally you can set additional options in the Options pane. Most options will take effect when the event is complete after the transition from live to on demand.

5. Select Save. By selecting Publish now, those you have given access will be able to see the event page in the attendee view, but will be shown the automatically generated slate before you go live.

   Note

   You must publish in order to share the URL. If you didn't publish, the system will automatically publish your event when you are ready to go live and manually start your event. When the event is published, users can find the event throughout the Stream portal in browse, search and on group pages.

Stream your live event

1. When you save your live event, you will get the RTMP server ingest URL located in the encoder setup tab. Select an encoder from the drop down list, or choose to configure manually. Check out the list of encoders for easy setup instructions.

2. To set up your encoder, select Start setup on the producer controls. It may take some time to start the setup process.

3. When the setup is ready, copy the server ingest URL into your encoder to start sending the live encoder feed to Microsoft Stream. Learn more about setting up your encoder

   Note

   It is important to set up your encoder with the correct configuration, and specify both audio and video for playback. Check out the configuration requirements to make sure you set up the encoder correctly.

4. When you start pushing from the encoder to the server ingest point, you should see the producer preview update.

   Note

   Audience members won't see this until you start the live event - they will see the automatically generated slate.

5. After you are satisfied with your setup and can see the preview, select Start event. If you didn't previously publish your event, Stream will do so automatically when you start the event.

   After the event starts, audience members can see the event.

   Windows 7 product key generator mac. Note

   You can also choose to disconnect at this point, which will take you back to step #2 if your intent was to test before the event.

6. When you are finished with your event, select End event on the producer controls. This ends the event and makes the content immediately available for video-on-demand.

   Important

   Make sure to end the event in Stream before stopping your encoder. If you do this in reverse order, audience members will see an error.