Medical image encryption based on improved ElGamal encryption technique
| Autor: | Dolendro Singh Laiphrakpam, Manglem Singh Khumanthem |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Plaintext-aware encryption
Computer science 02 engineering and technology Encryption Multiple encryption Computer Science::Multimedia 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Elliptic curve cryptography ElGamal encryption Computer Science::Cryptography and Security Signcryption business.industry Encryption software Cramer–Shoup cryptosystem 020207 software engineering ElGamal signature scheme Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Disk encryption theory Deterministic encryption Elliptic curve Probabilistic encryption 020201 artificial intelligence & image processing business Algorithm |
| Zdroj: | Optik. 147:88-102 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2017.08.028 |
| Popis: | Elliptic curve analogue ElGamal encryption scheme requires encoding of the plain message onto elliptic curve coordinate using Koblitz encoding technique before encryption operation. The paper proposes a medical image encryption scheme using improved ElGamal encryption technique. A new finding has been made in the proposed method where separate calculations for encoding plain message to elliptic curve coordinate is removed. The algorithm in the improved version of ElGamal encryption scheme is designed to encrypt medical image where data expansion issue is resolved and execution speed is enhanced. The strength of the proposed method is insured through various statistical and security analyses and comparison with other existing encryption schemes. |
| Databáze: | OpenAIRE |
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