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• By:Jelena Marković

SKYPE

• Skype is a telecommunications application software that specializes in providing video chat and voice calls from computers, tablets and mobile devices via the Internet to other devices or telephones-smartphones

•Users can send instant messages, exchange files and images, send video messages and create conference calls.

• Skype allows users to communicate by voice using a michrophone, video by using a webcam, and instant messaging over the Internet. Skype-to-Skype calls to other users are free of charge, while calls to landline telephones and mobile phones (over traditional telephone networks) are charged via a debt-based user account system called Skype Credit.

• Skype is claimed initially to be a secure communication, with one of its early web pages stating "highly secure with end-to-end encryption’’. Security services were invisible to the user, and encryption cannot be disabled. Skype reportedly uses publicly documented, widely trusted encryption techniques: RSA for key negotiation and the Advanced Encryption communication to encrypt conversations.