کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
564258 | 875583 | 2012 | 10 صفحه PDF | دانلود رایگان |

This paper proposes an encryption scheme with a new additive homomorphism based on Elliptic Curve ElGamal (EC-ElGamal) for sharing secret images over unsecured channel. The proposed scheme enables shorter key and better performance than schemes based on RSA or ElGamal. It has a lower computation overhead in image decryption comparing with the method that uses other additively homomorphic property in EC-ElGamal. Elliptic curve parameters are selected to resist the Pohlig–Hellman, Pollard's-rho, and Isomorphism attacks. Experimental results and analysis show that the proposed method has superior performance to RSA and ElGamal.
► Exploit a new additive homomorphism in EC-ElGamal.
► Propose homomorphic image encryption for sharing secret images based on EC-ElGamal.
► Solve data expansion of EC-ElGamal.
► Uplift the encryption efficiency with shorter key length than methods based on RSA or ElGamal.
► Decrease the computation overhead in the decryption process.
Journal: Signal Processing - Volume 92, Issue 4, April 2012, Pages 1069–1078