Abstract
The concept of group theory has been applied to digital image security using the DES algorithm and wavelet transform. Affine Cipher algorithm was a symmetric cryptographic algorithm. This was initiated for studying further the implementation of the Affine group on the Affine transformation. More over, digital image used the Affine algorithm in security. The purpose of this paper was described the implementation of the existence of an Affine Group in the Affine transformation carried out in digital image cryptography. The concept of maintaining geometric shapes in Affinetransformations and bijective nature of each Affine transformation could be formed an Affine group.
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