…Authentication and confidentiality can be achieved using Secure/MIME (S/MIME) [ RFC5750 ] [ RFC5751 ], which uses the Security Multiparts framework for MIME [ RFC1847 ]. 2.2.1 . Authorization In iTIP messages [ iTIP ], only the "Organizer" is authorized to modify or cancel calend…

…nt this attack. In SIP, Secure/Multipurpose Internet Mail Extensions (S/MIME) [ RFC5750 ] and Transport Layer Security (TLS) [ RFC5246 ] can be used to protect session description exchanges in an end-to-end and a hop-by- hop fashion, respectively. Camarillo & Schulzrinne Standard…

…nt this attack. In SIP, Secure/Multipurpose Internet Mail Extensions (S/MIME) [ RFC5750 ] and Transport Layer Security (TLS) [ RFC5246 ] can be used to protect session description exchanges in an end-to-end and a hop-by- hop fashion, respectively. Camarillo & Schulzrinne Standard…

…nt this attack. In SIP, Secure/Multipurpose Internet Mail Extensions (S/MIME) [ RFC5750 ] and Transport Layer Security (TLS) [ RFC5246 ] can be used to protect session description exchanges in an end-to-end and a hop-by- hop fashion, respectively. Camarillo & Schulzrinne Standard…