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Software piracy is the most significant and burning issue in the age of the internet.Software piracy has been a direct threat for software vendors in terms of revenue and, therefore, a number of effective and efficient techniques have been employed for the detection and prevention of software piracy. One very important technique is software watermarking and using registration keys. This paper proposes the Server-side algorithms for registration and embedding the watermark into the software using the WHLK (Watermark, Hardware Parameters and License Key) approach. We have tested the algorithms and the analysis of the proposed algorithms proves that these registration algorithms are more reliable and efficient in comparison to other techniques.PeerJ PrePrints | http://dx.doi.org/10.7287/peerj.preprints.868v1 | CC-BY 4.0 Open Access | rec: