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1 
Delegation of Authority 
SUMITTED BY 
NOUFAL N
2 
What is Delegation of Authority? 
• Allowing someone to act on your behalf to 
perform tasks (consume resources) that 
are available to you 
• Delegator should be empowered to 
delegate to anyone he needs to, subject to 
certain organisation controls (i.e. the 
organisation’s Delegation Policy)
3 
How do you delegate to others 
today? 
• To enter your house and fetch something 
– If your house if locked? 
• To use your PC 
– If it is protected by a username and 
password? 
• To withdraw money from your bank 
account 
– Using an ATM?
4 
Role Based Access Control 
• Users are given roles (or attributes) 
• Holders of attributes are given access 
permissions 
• Examples 
• Ed and Jake are Students at Kent University 
• Students at Kent University can read the exam 
results file on the website 
• Jo and Zoe are Tesco Clubcard holders 
• Tesco Clubcard holders get 10% discount when 
shopping electronically at Tescos
5 
Advantages of the Delegation 
Issuing Service 
• Users don’t need to have signing keys since the 
DIS signs the Attribute Certificates on their 
behalf 
• The DIS keeps a central record (audit trail) of 
who has delegated what to whom 
• The DIS has a Delegation Policy to control who 
can delegate what to whom 
• The process of privilege checking is very 
efficient since all ACs are issued by the DIS (and 
not by lots of different users)
5 
Advantages of the Delegation 
Issuing Service 
• Users don’t need to have signing keys since the 
DIS signs the Attribute Certificates on their 
behalf 
• The DIS keeps a central record (audit trail) of 
who has delegated what to whom 
• The DIS has a Delegation Policy to control who 
can delegate what to whom 
• The process of privilege checking is very 
efficient since all ACs are issued by the DIS (and 
not by lots of different users)

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Delegation of authority

  • 1. 1 Delegation of Authority SUMITTED BY NOUFAL N
  • 2. 2 What is Delegation of Authority? • Allowing someone to act on your behalf to perform tasks (consume resources) that are available to you • Delegator should be empowered to delegate to anyone he needs to, subject to certain organisation controls (i.e. the organisation’s Delegation Policy)
  • 3. 3 How do you delegate to others today? • To enter your house and fetch something – If your house if locked? • To use your PC – If it is protected by a username and password? • To withdraw money from your bank account – Using an ATM?
  • 4. 4 Role Based Access Control • Users are given roles (or attributes) • Holders of attributes are given access permissions • Examples • Ed and Jake are Students at Kent University • Students at Kent University can read the exam results file on the website • Jo and Zoe are Tesco Clubcard holders • Tesco Clubcard holders get 10% discount when shopping electronically at Tescos
  • 5. 5 Advantages of the Delegation Issuing Service • Users don’t need to have signing keys since the DIS signs the Attribute Certificates on their behalf • The DIS keeps a central record (audit trail) of who has delegated what to whom • The DIS has a Delegation Policy to control who can delegate what to whom • The process of privilege checking is very efficient since all ACs are issued by the DIS (and not by lots of different users)
  • 6. 5 Advantages of the Delegation Issuing Service • Users don’t need to have signing keys since the DIS signs the Attribute Certificates on their behalf • The DIS keeps a central record (audit trail) of who has delegated what to whom • The DIS has a Delegation Policy to control who can delegate what to whom • The process of privilege checking is very efficient since all ACs are issued by the DIS (and not by lots of different users)