Analysis of Edge Length Distribution of Crypto-Compressed 3D Objects

In order to remain format compliant, cryptocompression of 3D objects is a very smart solution to guarantee both a high compression rate and a very high level of security. In this article, we present the analysis of a crypto-compression method based on the Draco format proposed by Google. The proposed analysis consists to analyze the distribution of edge lengths of crypto-compressed 3D objects as a function of the number of bits encrypted for each vertex. Experimental results, based on the Kolmogorov-Smirnov test, show that 5-bit encryption per vertex coordinate achieves an optimal trade-off between security and compression efficiency.