Notice of Violation of IEEE Publication Principles - Security Enhancement in CDMA with a Hidden Direct Sequence Spread Spectrum System
Abolfazl Falahati, Mehran Mashreghi, M. Tafaroji · 2006
Notice of Violation of IEEE Publication Principles"Security Enhancement in CDMA with a Hidden Direct Sequence Spread Spectrum System"by A. Falahati, M. Mashreghi, M. Tafarojiin the 2nd Information and Communication Technologies (ICTTA 2006), 2006, pp. 2524 - 2529.After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.This paper contains significant portions of original text from the paper cited below. The original text was copied with insufficient attribution (including appropriate references to the original author(s) and/or paper title) and without permission.Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article:"CDMA Physical Layer Built-in Security Enhancement"by Jian Ren, Tongtong Liin the 2003 IEEE 58th Vehicular Technology Conference (VTC 2003), Vol. 3, 2003, pp. 2157 - 2161Served as one of the most widely used wireless airlink interface, CDMA has been identified as a major technique for 3G wireless communications. The current IS-95 CDMA provides a near satisfactory security solution to voice centric wireless communications because each voice conversation only lasts for a very short period of time. However, the security features provided by IS-95 CDMA are far from adequate and although it is utilized for data communications but is not fully acceptable. In this paper, the security weaknesses of the existing CDMA airlink interface are analyzed. A new method named hidden direct sequence is proposed to enhance the built-in security of CDMA systems with the application of cryptographic algorithms over the channelization code. Employing the proposed scheme can provide a much stronger security system than that already exists in IS-95 system