1. Anonymizer.com. The anonymizer.
2. Berthold, O., Pfitzmann, A., AND Standtke, R. The disadvantages of free mix routes and how to overcome them. In Proc. Workshop on Design Issues in Anonymity and Unobservability (25–26 July 2000), ICSI TR-00-011, pp. 27–42.
3. Bos, J., AND Boer, B. D. Detection of disrupters in the DC protocol. In Advances in Cryptology-EURO CRYPT’ 89 (1989), pp. 320–327.
4. Canetti, R.Studies in Secure Multiparty Computation and Applications. PhD thesis, Department of Computer Science and Applied Mathematics, The Weizmann Institute of Science, June 1995. revised version.
5. Cuphaum, D. Untraceable electronic mail, return addresses, and digital pseudonyms. Communications of the Association for Computing Machinery 24,2 (Feb. 1981), 84–88.