• Journal of Convergence Society for SMB
• /
• v.3 no.1
• /
• pp.43-48
• /
• 2013

With the development of computer technology, and have diversified technical system attacks evolve more. Computer hardware and software has evolved more and more, performance is improved, but the basic principle of operation does not change much, it is a problem. In general, the application is placed in a running state, the program data is placed in memory. Remains in memory for efficiency of operation of the operating system, we analyze memory and memory hacking, these data will have access to data. Since a large damage occurs key, such as certificates personal information, encrypted flows out, measures should be provided by it. In this content, I want to discuss the issues and work around memory hacking.

• The Transactions of the Korean Institute of Electrical Engineers P
• /
• v.62 no.2
• /
• pp.98-102
• /
• 2013

There are so many CCTV in our streets, buildings and public places. Nevertheless, security methods for CCTV are rarely. This paper describes a study on developing a media crypto algorithm for anti-hacking into CCTV. H.264 codec is used to compress the video stream in CCTV systems. HIGHT algorithm provided by KISA is adopted as a crypto algorithm in our development. Other crypto methods except HIGHT could be selected by company's security police. Only some bytes in VCL(Video Coding Layer) of H.264 are encrypted to improve the performance of limited platforms, such as CCTV, WebCam, smartphone. Very fast and light crypto algorithm was developed by our researches.

• Journal of KIISE:Computing Practices and Letters
• /
• v.9 no.3
• /
• pp.311-321
• /
• 2003

A current firewall or IDS (intrusion detection system) of the network level suffers from many vulnerabilities in internal computing servers. For a secure Linux implementation using system call hooking, this paper defines two requirements such as the multi-level security function of TCSEC B1 and a prevention of hacking attacks. This paper evaluates the secure Linux implemented in terms of the mandatory access control, anti-hacking and performance overhead, and thus shows the security, stability and availability of the multi-level secure Linux. At the kernel level this system protects various hacking attacks such as using Setuid programs, inserting back-door and via-attacks. The performance degradation is an average 1.18% less than other secure OS product.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2013.10a
• /
• pp.790-793
• /
• 2013

Lastest Smishing is one of the hacking techniques target on the Android smartphone. Smishing using the SMS message is a new hacking techniques. smishing sends a message to the user included trojan address. It collects personal information and to control smartphones. In particular, without the user's knowledge of the retail payment service provider uses the service. It caused damage worth up to 300,000 won. It damage to users through different types of text messages. This paper Smishing typical methods and types are described in damages. This paper are described in damages and type by Smishing. This paper propose preventive and fundamental solution. We designed and implemented a anti-smishing system for android.

• Journal of the Korea Computer Industry Society
• /
• v.5 no.1
• /
• pp.29-38
• /
• 2004

It was fast and easily used limitless information as a development of information technology, but it was increased side effects. There are hacking or cracking, personal information leakage in these side effects. A computer virus is stated in a serious problem recently. The best solution about a computer virus is an anti-virus. An anti-virus downloads and is updated virus signature in server after it was installed in a client computer. Products interworking with server are released recently. However, if signature isn't aptly updated, anti-virus program doesn't normally operate these anti-virus systems, and remote management is impossible. Therefore, in this paper, an active server-based anti-virus system which is installed in server and was able to be managed remotely was designed and implemented in order to solve these problems.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.4 no.3
• /
• pp.217-223
• /
• 2009

Recently, the development of the various network method can generate serious social problems. So, it is highly required to control security of network. These problems related security will be developed and keep up to confront with anti-security field such as hacking, cracking. The way to preserve security from hacker or cracker without developing new cryptographic algorithm is keeping the state of anti-cryptanalysis in a prescribed time by means of extending key-length. In this paper, the proposed montgomery multiplication structured unit array method in carry generated part and variable length multiplication for eliminating bottle neck effect with the RSA cryptosystem. Therefore, this proposed montgomery multiplier enforce the real time processing and prevent outer cracking.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.28 no.4C
• /
• pp.356-364
• /
• 2003

Presently, etwork is being in the existence as an influence can not be neglected. This rapid progress of network has gone with development of mobile network and information communication. But the development of network can generate serous social problems. So, it is highly required to control security of network. These problems related security will be developed and keep up to confront with anti-security part such as hacking, cracking. There's no way to preserve security from hacker or cracker without delvelopping new cryptographic algorithm or keeping the state of anti-cryptanalysis in a prescribed time by means of extendig key-length. Worldwidely, many researchers for network security are trying to handle these problems. In this paper, we proposed a new block cryptosystem. The Block cipher-Secure Electronic Xenogenesis Algorithm(B-SEXA) which is capable to cipher regardless of key distribution or key-length for these definite problem is proposed and designed in hardware. B-SEXA increase secret level from using a MDP and MLP in maximum is proposed to prevent cryptograpy analysis. The designed B-SEXA in this paper performed synthesization and simulation using Synopsys Vwe. 1999.10 and VHDL.

• Journal of the Korea Society of Computer and Information
• /
• v.6 no.3
• /
• pp.84-90
• /
• 2001

The development of network and the other communication-network can generate serious problems. So, it is highly required to control security of network. These problems related secu be developed and keep up to confront with anti-security part such as hacking, cracking. Th way to preserve security from hacker or cracker without developing new cryptographic algori keeping the state of anti-cryptanalysis in a prescribed time by means of extending key-length In this paper, the proposed montgomery multiplication structured unit array method in carry generated part and variable length multiplicator for eliminating bottle neck effect with the RSA cryptosystem. Therefore, this proposed montgomery multiplicator enforce the real time processing and prevent outer cracking.

• Journal of Internet Computing and Services
• /
• v.5 no.3
• /
• pp.11-23
• /
• 2004

It is easy to access to the infinity information and programs, but it gives rise to the side effect. There are many side effects(ex. Hacking, Cracking, expose the personal information, etc). Nowadays, the computer virus raise the serious problems. The making program called Vaccine is work out a count measure. The Anti-Virus programs install on the client side computer and upgrade by downloading on the server's signature, the latest date, the program bound both of them is shown, but these programs have the defect that they have no remote control and no signature update because user's unconcern, This paper reported the research of existing virus infecting technology and the development of Web based Anti-Virus Scanner using the remote control on the internet server. Through this paper, I want to set up the counter measure for new virus easily, and to make more fast the vaccine for virus.

• Bulletin of the Korean Mathematical Society
• /
• v.57 no.1
• /
• pp.139-165
• /
• 2020

Mirror symmetry for del Pezzo surfaces was studied in [3] where they suggested that the mirror should take the form of a Landau-Ginzburg model with a particular type of elliptic fibration. This argument came from symplectic considerations of the derived categories involved. This problem was then considered again but from an algebro-geometric perspective by Gross, Hacking and Keel in [8]. Their construction allows one to construct a formal mirror family to a pair (S, D) where S is a smooth rational projective surface and D a certain type of Weil divisor supporting an ample or anti-ample class. In the case where the self intersection matrix for D is not negative semi-definite it was shown in [8] that this family may be lifted to an algebraic family over an affine base. In this paper we perform this construction for all smooth del Pezzo surfaces of degree at least two and obtain explicit equations for the mirror families and present the mirror to dP₂ as a double cover of ℙ².