Encryption for confidentiality of the network and influence of this to the quality of streaming video through network

摘要: Nowadays, the interest in real-time services, like audio and video, is growing. These services are mostly transmitted over packet networks, which based on IP protocol. It leads to analyses of these their behavior such networks becoming more frequent. Video has become significant part all data traffic sent via networks. In general, a video service one-way (except e.g. calls) network delay not an important factor as voice service. Dominant factors that influence final quality especially loss, variation capacity transmission links. Analysis concentrates resistance codecs loss network, causes artefacts video. IPsec provides confidentiality terms safety, integrity non-repudiation (using HMAC-SHA1 3DES encryption for AES CBC mode) with authentication header ESP (Encapsulating Security Payload). The paper brings detailed view performance streaming IP-based network. We compared well. measured results demonstrated relation between codec type bitrate quality.