Towards a theory of software protection
Proceedings on Advances in cryptology---CRYPTO '86
Frontiers of electronic commerce
Frontiers of electronic commerce
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
An Efficient Software Protection Scheme
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
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In this paper we propose a secure electronic software distribution and copyright protection protocol for electronic commerce based on public key cryptography (PKC). The proposed protocol considers post-installation security using an authentication agent and electronic license. It prevents software piracy and illegal copying. Even if software is copied illegally, a merchant can trace back to its original owner from the electronic license. The proposed protocol provides consumers, merchants, and producers in the electronic marketplace with confidence, security, and efficiency.