'Investigating information security incidents' presentation slideshows

What is Encryption-Firewall-Network Security?

Encryption is the transformation of information in order to conceal from unauthorized persons, by providing, at the same time, authorized users access to it. For the most part, encryption serves the task of maintaining the confidentiality of information transmitted. Network Security Services experts think that an important feature of any encryption algorithm is to use a key, which confirms the choice of a specific transformation from the aggregate possible for a given algorithm.

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