Some security Properties Integrity: no improper modification Authenticity: integrity of source Non-repudiation: integrity of commitments Accountability: integrity of responsibility Secrecy: no improper disclosure Privacy: secrecy of personal data Anonymity: unlinkable secrecy of identity Pseudonymity: linkable secrecy of identity Availability: no improper denial of service4 Some Security Properties • Integrity: no improper modification – Authenticity: integrity of source – Non-repudiation: integrity of commitments – Accountability: integrity of responsibility • Secrecy: no improper disclosure – Privacy: secrecy of personal data – Anonymity: unlinkable secrecy of identity – Pseudonymity: linkable secrecy of identity • Availability: no improper denial of service