1. CSN
  2. All Volumes and Issues
  3. Number 905, 2018
  4. Encryption and decryption of grayscale and color images

Encryption and decryption of grayscale and color images

CSN.
2018;
, Number 905
: pp. 82 - 87
https://doi.org/10.23939/csn2018.905.082
Authors:
  1. A. M. Kovalchuk
  2. N. Lotoshynska
1
Lviv Politechnik National University, Department of Publishing Information Technologies
2
Lviv Politechnik National University, Department of Publishing Information Technologies

Images used as a stochastic signal are among the most commonly used types of information. Accordingly, the actual task is to protect such images from unauthorized access and use. This leads to the use of known classic encryption methods in the case of image encryption. Offered algorithms of encryption-decryption are intended for the use of images in grayscale and are based on using the ideas of basic RSA algorithm. Encryption – decryption can be carried out with extra noising and without too. A combination of elements of the RSA algorithm and binary operations is also described for co-use in encryption – decryption of color images.

encryption
decryption
image
edge
cryptographic stability
affine transformation
binary operation
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