?url_ver=Z39.88-2004&rft_id=10.1007%2F978-3-642-17641-8%E2%82%82%E2%82%86&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M.I.&rft.aulast=Khan&rft.au=Khan%2C+M.I.&rft.date=2010&rft.title=Communications+in+Computer+and+Information+Science&rft.atitle=On+perceptual+encryption%3A+Variants+of+DCT+block+scrambling+scheme+for+JPEG+compressed+images&rft.pages=212-223&rft.volume=123+CC&rft.issn=18650929&rft.isbn=3642176402%3B+9783642176401&rft.genre=article