Recently, the rapid advances in information and communication and network technology and the expansion of digital convergence are changing to ubiquitous network society. Ubiquitous society, expand the temporal and physical space and develops many good thing. but, Hacking, cyber crime, increased privacy, and many problems will occur. In this study, the selection criteria for the appropriate authentication method for developing risk assessment procedures of the service is provided to step 4. (Services, and risk identification step, evaluation of risk-occurrence, evaluation of the extent of damage, Assessment of the level of risk) So, we can easily use the importance and risk to evaluate numerical value of the final risk result.

1. 서론
 2. 연구의 이론적 배경
  2.1 인증의 개념
  2.2 인증 수단의 분류
  2.3 인증 프로토콜의 위협과 공격
 3. 연구의 방법
  3.1 델파이 기법
  3.2 전문가 선정
 4. 연구 내용
  4.1 서비스 및 risk 식별 단계
  4.2 risk의 발생가능성(Likelihood) 산정
  4.3 risk 발생시 피해 규모 산정
  4.4 risk 수준 평가 단계
  4.5 위험 수준별 인증수단 선택
 5. 결론
 참고문헌

• 정광섭(한양대학교 공학대학원)
• 배석주(한양대학교 산업공학과)