16 citations · 42 across the 8 of their papers we have counts for
6 papers · 1 filter
Image Encryption Based On Gradient Haar Wavelet and Rational Order Chaotic Maps
Sodeif Ahadpour, Yaser Sadra, Meisam Sadeghi
Haar wavelet is one of the best mathematical tools in image cryptography and analysis. Because of the specific structure, this wavelet has the ability which is combined with other…
Chaotic trigonometric Haar wavelet with focus on image encryption
Sodeif Ahadpour, Yaser Sadra
In this paper, after reviewing the main points of Haar wavelet transform and chaotic trigonometric maps, we introduce a new perspective of Haar wavelet transform. The essential ide…
A Chaos-based Image Encryption Scheme using Chaotic Coupled Map Lattices
Sodeif Ahadpour, Yaser Sadra
In recent years, information security essential in various arenas like internet communication, multimedia systems, medical imaging, tele-medicine and military communication. Howeve…
Public key Steganography Using Discrete Cross-Coupled Chaotic Maps
Sodeif Ahadpour, Mahdiyeh Majidpour, Yaser Sadra
By cross-coupling two logistic maps a novel method is proposed for the public key steganography in JPEG image. Chaotic maps entail high complexity in the used algorithm for embeddi…
A Novel Chaotic Encryption Scheme based on Pseudorandom Bit Padding
Sodeif Ahadpour, Yaser Sadra, Zahra ArastehFard
Cryptography is always very important in data origin authentications, entity authentication, data integrity and confidentiality. In recent years, a variety of chaotic cryptographic…
A Novel Chaotic Image Encryption using Generalized Threshold Function
Sodeif Ahadpour, Yaser Sadra, Zahra ArastehFard
In this paper, after reviewing the main points of image encryption and threshold function, we introduce the methods of chaotic image encryption based on pseudorandom bit padding th…