Skip to main content
SpringerLink
Log in

Priority visual secret sharing of random grids for threshold access structures

  • Published:
Multimedia Tools and Applications Aims and scope Submit manuscript

Abstract

Conventional (k, n)-threshold visual secret sharing of random grids (VSSRG) schemes generate n shares having the same average light transmission from a secret image to be shared, and any information related to the secret image cannot be identified externally from a single share held by one participant. In addition, the secret image can be recovered only by collecting k shares individually held by participants, and every share has the same capability of recovering the secret image. In fact, participants’ priority levels vary in certain conditions, and therefore their shares’ capabilities to recover the secret image are different. The priority-based (k, n)-threshold VSSRG scheme proposed in this study enables the assignment of different priority weights to each share to create different priority levels. During decryption, the stacking of shares with different priority levels recovers the secret image at different levels. Moreover, shares individually held by each participant have the same average light transmission, and consequently the shares’ priority levels cannot be identified externally.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. Chen TH, Tsao KH (2009) Visual secret sharing by random grids revisited. Pattern Recogn 42(9):2203–2217

    Article  MATH  Google Scholar 

  2. Chen TH, Tsao KH (2011) Threshold visual secret sharing by random grids. J Syst Softw 84(7):1197–1208

    Article  Google Scholar 

  3. Fang WP, Lin JC (2006) Progressive viewing and sharing of sensitive images. Pattern Recogn Image Anal 16(4):632–636

    Article  Google Scholar 

  4. Hou YC, Quan ZY, Tsai CF (2015) A privilege-based visual secret sharing model. J Vis Commun Image R 33:358–367

    Article  Google Scholar 

  5. Kafri O, Keren E (1987) Encryption of pictures and shapes by random grids. Opt Lett 12:377–379

    Article  Google Scholar 

  6. Kumar S, Sharma RK (2014) Threshold visual secret sharing based on Boolean operations. Secur Comm Netw 7:653–664

    Article  Google Scholar 

  7. Lee YS, Wang BJ, Chen TH (2013) Quality-improved threshold visual secret sharing scheme by random grids. IET Image Process 7(2):137–143

    Article  MathSciNet  Google Scholar 

  8. Naor M, Shamir A (1995) Visual cryptography. Advances in cryptology-EuroCrypt’94 950: 1–12

  9. Shyu SJ (2007) Image encryption by random grids. Pattern Recogn 40(3):1014–1031

    Article  MATH  Google Scholar 

  10. Shyu SJ (2009) Image encryption by multiple random grids. Pattern Recogn 42(7):1582–1596

    Article  MATH  Google Scholar 

  11. Shyu SJ, Chen MC (2011) Optimum pixel expansions for threshold visual secret sharing schemes. IEEE Trans Inf Forensics Secur 6(3):960–969

    Article  Google Scholar 

  12. Shyu SJ, Huanga SY, Lee YK, Wang RZ, Chen K (2007) Sharing multiple secrets in visual cryptography. Pattern Recogn 40(12):3633–3651

    Article  MATH  Google Scholar 

  13. Wu X, Sun W (2012) Visual secret sharing for general access structures by random grids. IET Inf Secur 6(4):299–309

    Article  Google Scholar 

  14. Wu X, Sun W (2013) Improving the visual quality of random grid-based visual secret sharing. Signal Proc 93(5):977–995

    Article  Google Scholar 

  15. Yan X, Liu X, Yang CN (2015) An enhanced threshold visual secret sharing based on random grids. J real-time image proc 1–13

  16. Yu B, Shen G (2014) Multi-secret visual cryptography with deterministic contrast. Multimed Tools App 72(2):1867–1886

    Article  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Computer Science and Information Engineering, Ming Chuan University, Taoyuan, Taiwan

    Her-Chang Chao

  2. Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan

    Tzuo-Yau Fan

Authors
  1. Her-Chang Chao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Tzuo-Yau Fan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Tzuo-Yau Fan.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chao, HC., Fan, TY. Priority visual secret sharing of random grids for threshold access structures. Multimed Tools Appl 77, 11867–11882 (2018). https://doi.org/10.1007/s11042-017-4836-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11042-017-4836-1

Keywords

Search

Navigation