Sökning: "Secure VoIP"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden Secure VoIP.

  1. 1. Homomorphic Encryption for Audio Conferencing

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Herman Nordin; Ebba Lindström; [2022]
    Nyckelord :Homomorphic encryption; VoIP; security; audio conferencing; cryptography;

    Sammanfattning : Homomorphic encryption (HE) enables computations on encrypted data making it possible to perform calculations on a server without sharing the secret key for decryption. HE is relatively new and has seen significant improvements in recent years in terms of speed of encryption, decryption, operations, and the number of operations possible to perform in a row without damaging the ciphertext. LÄS MER

  3. 2. Protocol-aware fuzzing of DTLS

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Rahbar Ghori; [2021]
    Nyckelord :;

    Sammanfattning : Communication protocols like TCP and UDP enable transfer of databetween sender and receiver during online communication. To provide security from eavesdropping, message forgery and data tampering during online communication, communication protocols likeTLS and DTLS are run on top of TCP/UDP. LÄS MER

  4. 3. NFtables och IPtables : En jämförelse av latens

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för informationsteknologi

    Författare :Jonas Svensson Eidsheim; [2017]
    Nyckelord :firewall; nftables; iptables; security; latency;

    Sammanfattning : Firewalls are one of the essential tools to secure any network. IPtables has been the defacto firewall in all Linux systems, and the developers behind IPtables are alsoresponsible for its intended replacement, NFtables. Both IPtables and NFtables arefirewalls developed to filter packets. LÄS MER

  5. 4. On the security of VoIP mobile network operator and international carrier interconnects

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Mina Naguib; [2016]
    Nyckelord :VoIP; Security; TDM; PSTN; International Carrier Network; Mobile Operators; SBC; Signaling;

    Sammanfattning : All Mobile Network Operators (MNOs) as well as international carriers are moving voice services from the legacy Public Switched Telephone Network (PSTN) to Voice over IP (VoIP). The benefit is that VoIP traffic can be easily rerouted at any moment, thus giving companies a variety of options as traffic can be rerouted to any carrier of choice leading to different Quality of Service (QoS) levels (and thus agreements) as well as different prices to choose from. LÄS MER

  7. 5. A reverse proxy for VoIP : Or how to improve security in a ToIP network

    Master-uppsats, KTH/Kommunikationsnät

    Författare :Guillaume Dhainaut; [2016]
    Nyckelord :VoIP; ToIP; SIP; SIPS; RTP; SRTP; SBC; session border controller; security; toll fraud;

    Sammanfattning : The need for security is crucial in Telephony over IP (ToIP). Secure protocols have been designed as well as specific devices to fulfill that need. This master thesis examines one of such devices called Session Border Controller (SBC), which can be compared to reverse proxies for ToIP. The idea is to apply message filters to increase security. LÄS MER