An improved public key cryptosystem based on Chebyshev chaotic map over finite field

Joint Authors

Najaf, Yusuf S.
Mahmud, Mahir K.

Source

Journal of Engineering and Sustainable Development

Publisher

al-Mustansyriah University College of Engineering

Publication Date

2020-12-31

Country of Publication

Iraq

No. of Pages

11

Main Subjects

Electronic engineering

Topics

• Finite fields
• Computer simulation

English Abstract

Public key cryptosystem based on a chaotic map over finite field, depends on what is called Chebyshev map, that has a semi-group property and ability to provide a digital signature.

The cryptosystem suggested by Ljupco Kocarev has a weakness in its security since it suffers from the state of repetition, resulting into more than one decryption keys (Multiple keys problem).

This paper suggests an improved public key cryptosystem which does not suffer from the repetition, so as to complicate the process of breaking the system since there is only one key that can decrypt the system.

This is done by adding a large prime number to the system.

Computer simulation results show that the proposed algorithm succeeds to remove the repetition problem completely.

Data Type

Conference Papers

Record ID

BIM-1263625

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