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Listen with Friends. Listen with Friends allows Facebook users to listen to music and discuss the tunes using Facebook Chat with friends at the same time. Users can also listen in as a group while one friend acts as a DJ. Up to 50 friends can listen to the same song at the same time, and chat about it.
Stream cipher. The operation of the keystream generator in A5/1, an LFSR-based stream cipher used to encrypt mobile phone conversations. Astream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each plaintext digit is encrypted one at a time with the ...
Stream ciphers are vulnerable to attack if the same key is used twice (depth of two) or more. Say we send messages A and B of the same length, both encrypted using same key, K. The stream cipher produces a string of bits C (K) the same length as the messages. The encrypted versions of the messages then are: where xor is performed bit by bit.
Time period. Key developments in online video web sight. 1974–1992. Development of practical video coding standards. The development of the discrete cosine transform (DCT) lossy compression method leads to the first practical video formats, H.261 and MPEG, initially used for online video conferencing. 1993–2004.
The event, which will stream at 8 p.m. EDT (0000 GMT) across online platforms including YouTube, Instagram, Facebook, TikTok and Twitch, will feature representatives from dozens of groups that ...
Keystream. 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. Usually each character in the keystream is ...
Online video platforms allow users to upload, share videos or live stream their own videos to the Internet. These can either be for the general public to watch, or particular users on a shared network. The most popular video hosting website is YouTube, 2 billion active until October 2020 and the most extensive catalog of online videos. [1]
Activity stream. An activity stream is a list of recent activities performed by an individual, typically on a single website. For example, Facebook 's News Feed is an activity stream. Since the introduction of the News Feed on September 6, 2006, [ 1] other major websites have introduced similar implementations for their own users.