The Indonesian Trade Secrets Law Number 30/2000 (ITS Law) postulates exemptions for acts that are not considered infringements to protect trade secrets. One of them is the reverse engineering other people’s problem ITS does limit extent which can be justified. absence these limitations also allows attempts disclose secrets under pretext engineering. This ultimately results in legal certainty pr...

The Internet is an iconoclastic system which has introduced exciting new concepts in commerce and communications, whilst upsetting a number of traditional principles, including principles associated with intellectual property law. Intellectual property is a term coined to describe to the collective set of exclusive rights which creators can obtain for their works. The rights are provided by pat...

A multi-secret sharing scheme (MSS) allows a dealer to share multiple secrets among a set of participants. in such a way a multi-secret sharing scheme (MSS) allows a dealer to share multiple secrets among a set of participants, such that any authorized subset of participants can reconstruct the secrets. Up to now, existing MSSs either require too long shares for participants to be perfect secur...

Lee and Hwang proposed a multi-stage (t, n) secret sharing scheme which has fewer public values than pervious schemes. In their scheme, a group of participants share multiple secrets stage-by-stage, and only one secret share should been kept by each participant. However, in this article, we will show that multiple secrets cannot, in fact, be reconstructed stage-by-stage by the secret holder’s d...

The simple security property in an information flow policy can be enforced by encrypting data objects and distributing an appropriate secret to each user. A user derives a suitable decryption key from the secret and publicly available information. A chain-based enforcement scheme provides an alternative method of cryptographic enforcement that does not require any public information, the trade-...

Opacity is a generic security property, that has been defined on (non probabilistic) transition systems and later on Markov chains with labels. For a secret predicate, given as a subset of runs, and a function describing the view of an external observer, the value of interest for opacity is a measure of the set of runs disclosing the secret. We extend this definition to the richer framework of ...

This paper addresses the question of multi-party computation in a model with asymmetric information. Each agent has a private value (secret), but in contrast to standard models, the agent incurs a cost when retrieving the secret. There is a social choice function the agents would like to compute and implement. All agents would like to perform a joint computation, which input is their vector of ...

An efficient, computationally secure, verifiable (t, n) multi secret sharing scheme, based on YCH is proposed for multiple 3D models. The (t, n) scheme shares the 3D secrets among n participants, such that shares less than t cannot reveal the secret. The experimental results provide sufficient protection to 3D models. The feasibility and the security of the proposed system are demonstrated on v...

Life never ceases to astonish scientists as its secrets are progressively revealed. In particular the origin of life remains a mystery. One wonders how the scientific community could unravel a unique past event with such low probability. This paper shows that there are logical reasons for this problem. Life expresses both function and sign systems. This parallels the logically necessary symboli...