Towards Mobile Cryptography

TitleTowards Mobile Cryptography
Publication TypeTechnical Report
Year of Publication1997
AuthorsSander, T., & Tschudin C. F.
Other Numbers1112

Mobile code technology has become a driving force for recent advances in distributed systems. The concept of mobility of executable code raises major security problems. In this paper we deal with the protection of mobile code from possibly malicious hosts. We conceptualize on the specific cryptographic problems posed by mobile code. We are able to provide a solution for some of these problems. We present techniques how to achieve "non-interactive computing with encrypted programs" in certain cases and give a complete solution for this problem in important instances. We further present a way how an agent might securely perform a cryptographic primitive, digital signing, in an untrusted execution environment. Our results are based on the use of homomorphic encryption schemes and function composition techniques.

Bibliographic Notes

ICSI Technical Report TR-97-049

Abbreviated Authors

T. Sander and C. F. Tschudin

ICSI Publication Type

Technical Report