Kehar Singh

Optical image encryption using a jigsaw transform for silhouette removal in interference-based methods and decryption with a single spatial light modulator

Pramod Kumar, Joby Joseph, Kehar Singh · Applied Optics · 2011 · 146 citations

Optical Image Encryption, Engineering, Silhouette Removal +13

Securing information using fractional Fourier transform in digital holography

Naveen K. Nishchal, Joby Joseph, Kehar Singh · Optics Communications · 2004 · 142 citations

Holography, Engineering, Information Forensics +6

Double phase-image encryption using gyrator transforms, and structured phase mask in the frequency plane

Hukum Singh, Ashwani Kumar Yadav, Sunanda Vashisth et al. · Optics and Lasers in Engineering · 2014 · 138 citations

Hardware Security, Data Encryption Standard, Engineering +10

Color image encryption and decryption using fractional Fourier transform

Madhusudan Joshi, Chandrashakher, Kehar Singh · Optics Communications · 2007 · 135 citations

Data Encryption Standard, Image Analysis, Engineering +6

A technique for image encryption using digital signature

Aloka Sinha, Kehar Singh · Optics Communications · 2003 · 130 citations

Engineering, Digital Signature, Information Security +7