1. Lect Notes Comput Sci;S. Brands,1994
2. Brands, S., “Off-line Cash Transfer by Smart Cards,” Proceedings of the First Smart Card Research and Advanced Application Conference, Lille (France), Oct. 1994, pp. 101–117. See also: Centrum voor Wiskunde en Informatica (CWI), Report CS-R9455, September 1994. Available by anonymous ftp from: ftp.cwi.nl:/pub/CWIreports/AA/CS-R9455.ps.Z .
3. Brands, S., manuscript (1993) part (i): “Secret-Key Certificates,” Centrum voor Wiskunde en Informatica (CWI), Technical Report, Februari 1995. Submitted for publication.
4. Brands, S., manuscript (1993) part (ii): “Restrictive Blinding of Secret-Key Certificates,” Centrum voor Wiskunde en Informatica (CWI), Technical Report, Februari 1995.
5. Brands, S., manuscript (1993) part (iii): “Off-Line Electronic Cash Based on Secret-Key Certificates,” Proceedings of the Second International Symposium of Latin American Theoretical Informatics (LATIN’ 95), Valparaíso, Chili, April 3–7, 1995. See also: Centrum voor Wiskunde en Informatica (CWI), Report CS-R9506, Januari 1995. Available by anonymous ftp from: http://www.pub/CWIreports/AA/CS-R9506.ps.Z .