Review Note
Last Update: 10/01/2023 07:31 PM
Current Deck: TLS-SEC::Crypto::2-Symmetric Encryption
PublishedCurrently Published Content
Front
quantité d’information d’un évènement = ?
Remarques Front
Always front
Back
? = \(\sum _{i=1}^{n}P_{i}\log _{b}\left({\frac {1}{P_{i}}}\right)\)
Remarques Back
Always back
Le détail : \({\displaystyle H_{b}(X)=-\mathbb {E} [\log _{b}{P(X)}]=\sum _{i=1}^{n}P_{i}\log _{b}\left({\frac {1}{P_{i}}}\right)=-\sum _{i=1}^{n}P_{i}\log _{b}P_{i}.\,\!}\)
Chapitre/En tête
Crypto - Symmetric Encryption
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