1    
Scope  
        1.1     X.805 principles     
        1.2     Assumptions           
        1.3    
Overview   
 2    
References  
 3    
Definitions
and abbreviations         
        3.1    
Terms
defined elsewhere     
        3.2     Terms
defined in this Recommendation        
        3.3    
Abbreviations
and acronyms           
 4    
Security
threats and risks  
 5     Security trust model          
        5.1     Single
network trust model  
        5.2     Peering network trust model            
 6    
Security
architecture         
        6.1    
Functional
NGN architecture reference       
        6.2    
Mapping
to NGN functional architecture     
        6.3    
Identification
of NGN resources for security protection        
 7     Objectives and requirements         
        7.1    
General
security objectives  
        7.2    
Objectives
for security across multiple network provider domains    
        7.3    
Requirements
specific for security dimensions          
 8    
Specific
security requirements       
        8.1    
Common
security requirements for NGN elements  
        8.2    
Requirements
for NGN elements in the trusted zone            
        8.3     Requirements for NGN border elements
in the "trusted-but-vulnerable" domain        
        8.4    
Requirements
for TE border elements in the "un-trusted" domain      
        8.5    
Security recommendations for terminal equipment in the
"un-trusted" domain            
Appendix I – Security objectives and guidelines for
interconnection of emergency telecommunications services     
        I.1    
   Background          
        I.2    
   Scope/purpose     
        I.3    
   General objectives            
        I.4    
   General security capabilities           
        I.5    
   Authentication, authorization and
access control     
        I.6    
   Confidentiality and privacy            
        I.7    
   Data integrity        
        I.8        Communication     
        I.9        Availability            
Bibliography