Improved Secret Image Sharing Method By Encoding Shared Values With Authentication Bits

ULUTAŞ G., ULUTAŞ M., NABIYEV V.

26th Annual International Symposium on Computer and Information Science, London, Kanada, 26 - 28 Eylül 2011, ss.331-335 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1007/978-1-4471-2155-8_42
  • Basıldığı Şehir: London
  • Basıldığı Ülke: Kanada
  • Sayfa Sayıları: ss.331-335
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Authentication capability and stego image distortion" issues of secret sharing schemes are addressed and improved by the proposed scheme in this paper. Reduced fake stego block authentication probability and improved stego image Peak Signal to Noise Ratio (PSNR) are achieved by encoding both the share and authentication bits by XOR. Employing only eight bit for both share and authentication reduces the probability of authenticating a fake stego block to 1/256 with 44 dB average PSNR stego images. Experimental results indicate improvements compared to similar studies reported in the literature.