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Video Encryption is a method of preventing a video signal from being viewed unless you have the ability to decode the signal. Older methods dropped the video interlace which caused a picture to roll or skew. Newer methods change the video image so that it is scrambled and unreadable unless processed with the decryption key. Since the signal must be decrypted on each frame, this has to be done 60 times per second (in the U.S.) and 50 times per second (in Europe). This requires hardware decoding because software cannot decode the entire picture image fast enough.
Satellite Television providers typically use two methods: they change the encryption key on a regular basis, and they send a disable signal to a receiver device when the subscription ends, which invalidates its stored keys and it can't read the signals.
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What is Scrambling of messages at the sending end and unscrambling them at the receiveing end is called?
Encryption
What is the difference between advanced encryption algorithm and encryption algorithm?
People have developed many encryption algorithms. One particular encryption algorithm is the Rijndael algorithm, usually called the AES or Advanced Encryption Standard.
Is encryption crackable?
Encryption is converting plain text into cipher text . Yes, encryption can be cracked and then the text can be decrypted.
Is pgp encryption safer than other encryptions?
"Evaluating cryptography is difficult since without 'breaking' the encryption its hard to say whether one encryption is better or not. Pretty Good Encryption (PGP) is asymmetric, that is the encryption and decryption keys are different which may give it an edge on symmetric encryption."
What are the price ranges of encryption software?
Basic encryption (up to 256 bit encryption) software costs around $400 per year. Encryption softwares are not 100% foolproof.
How is security provided in Video Conferencing?
Usually in video conferencing applications, the security is provided through encryption via the software or built in to the hardware itself, network encryptors and/or through the dedicated line used to serve the application.
How is a phone signal kept from unauthorized readers?
Encryption
What does skit stand for in encryption?
what does the word skit stand for in encryption
Why is encryption use?
Mostly for performance - symmetric encryption is much much faster (order of magnitudes) than asymmetric encryption.
Why is symmetric encryption used?
Mostly for performance - symmetric encryption is much much faster (order of magnitudes) than asymmetric encryption.
What kind of encryption is used with 802.11b?
WEP encryption is being used.
Use the word encryption in a sentence?
Some messages will require encryption.
