References
- The PORTIA Project, http://crypto.stanford.edu/portia
- G. Bahadur, W. Chan, and, C. Weber 'Privacy defended : protecting yourself on-line', 최진이 역, '프라이버시 보호하기 = 은라인상에서 자신을 보호하기', 피어슨 에듀케이션 코리아, 2002
- G.W. van Blarkom, J.J.Borking.and J.G. E.Olk, 'Handbook of Privacy and Privacy-Enhancing Technoloeies : The case of intelligent Software Agents,' PISA Consortium. 2003
- D.Chaum, 'Untraceable Electronic Mail Return Addresses, and Digita1 Pseudonyms.' In Communication of ACM, Vol. 24, No. 2, pp. 84-88, Feb. 1981