کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
564258 875583 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elliptic curve ElGamal based homomorphic image encryption scheme for sharing secret images
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Elliptic curve ElGamal based homomorphic image encryption scheme for sharing secret images
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 92, Issue 4, April 2012, Pages 1069–1078
نویسندگان
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