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Part A : Introduction
Types of
Important Messages in the Electronic Computer Communications :
In this information age,
knowledge economy is a new stream of economic system supported by the
agricultural economy and industrial economy. The economy of many developed
countries has been depending on knowledge economy for quite some times.
Knowledge economy means the intangible assets generated from the various
intellectual properties (IP) like invention patent, utility model (aka
innovation patent), design patent (aka industrial design), plant patent,
copyright, trade mark, confidential information, etc.
There are two types of
computers: Blank computer and info-computer. Blank computer is a computer with
computing capabilities but without informative storage of data in the hard disk
drive (HDD). On the other hand, info-computer has lots of informative data
stored in the HDD and accessible by the computer network users.
Besides the intangible
assets, other important information is personal love affair(s), family
relationship, relatives’ relationship, personal and family financial
accounts, company financial accounts, friends’ relationship, charity
activities, socioeconomic activities, political activities, etc. Messages
categorized as the SPECT issues (sensitive, private, exigent, confidential,
transcription) need data protection.
Threat to
Electronic Computer Communications :
However, the computer
communication network, be it LAN and/or Internet, is actually subject to many
types of attacks, which can disclose the contents of the messages stored in an
info-computer and/or traveling through the communication channel. These attacks
are passive attacks like interruption, and active attacks like interruption,
modification, and fabrication.
Firewall is not perfect
in resisting the hacking. Moreover, network administrator and Internet service
providers (ISP) can monitor the traffic of the messages traveling through its
network. Some of the legal acts enacted in MY,
Malaysian Communications
and Multimedia Commission Act 1998 (Act 589)
Akta Suruhanjaya Komunikasi dan Multimedia Malaysia 1998 (Akta 589)
(URL: http://www.agc.gov.my/agc/oth/Akta/Vol.%2012/Act%20589.pdf)
(URL: http://www.agc.gov.my/agc/oth/Akta/Vol.%2012/Akta%20589.pdf)
CALEA (Communications
Assistance for Law Enforcement Act of 1994)
(URL: http://www.askcalea.net)
{
CALEA the Law
http://www.askcalea.net
}
STOA (Scientific and
Technological Options Assessment).
(URL: http://www.loyola.edu/dept/politics/ecintel.html)
{
http://www.loyola.edu/dept/politics/milintel.html
Loyola Homepage on
Strategic Intelligence
http://www.loyola.edu/dept/politics/intel.html
Economic and Competitive
Intelligence
http://www.loyola.edu/dept/politics/ecintel.html
}
Security-(C3I, C4I,
C4ISR).
(URL:
http://www.loyola.edu/dept/politics/ecintel.html)
{
C3I (Command, Control,
Communications, Intelligence).
C4I (Command, Control,
Communications, Computing, Intelligence).
C4I (Command, Control,
Communications, Computers, Intelligence).
C4ISP (Command, Control,
Communications, Computers, Intelligence, Support Plans).
C4ISR (Command, Control,
Communications, Computers, Intelligence, Surveillance, Reconnaissance).
}
Demands
for Secure Data Communications over the Computer Communications Networks :
Hence, the data in the
computer communications networks need some protection features like
confidentiality (against interception), authentication (against fabrication),
integrity (against modification), non-repudiation, access control, and
availability (against interruption).
Symmetric key
cryptography is one of the main branches of cryptology and information security
to provide these types of services. However, it has key sharing problem and key
management problem. Both the sender and receiver have to share the same secret
key, where the communication of the secret key through an insecure channel is a
problem. Moreover, every pair or group of sender and receiver(s) needs a unique
secret key. A huge number of pairs or groups of users create a big key
management problem. Let say there are n pairs or groups of users, then it needs
n*(n+1)/2 symmetric keys.
Therefore, asymmetric key
cryptography or public key cryptography (PKC) is invented to solve the problems
of symmetric key cryptography. Here, the beta version of MobileECC uses PKC to
provide two main functions: Encryption and Signature.
Part B : Secure Computer Communications
Public-Key
Cryptography (PKC) :
PKC is a novel invention
of cryptography in 1970’s. It provides both the basic functions of
encryption and signature. Its main advantage is that it has solved the problem
of sharing symmetric key by using a pair of asymmetric key called public key
and private key. The public key is publicly disclosed for the public to encrypt
a plaintext and to verify a signature. Meanwhile, the private key is used to
decrypt a ciphertext and to sign a message. Its security strength depends on
the private key size, which has to be at 160 bits for protection by 2010, 192
bits for a protection of 10 years, 224 bits for a protection of 20 years, 256
bits for a protection of 30 years, and so on.
MobileECC
:
This is a cryptographic
PKC software using memorizable public-key cryptography (MePKC) or mobile
public-key cryptography (MoPKC). There are two main functions, i.e. encryption
scheme and signature scheme. Its novel features are memorizability and mobility
of private key. The private key can be created using an at least 160-bit
passphrase or at least 2 units of self-created Chinese language password.
How to
Use MobileECC :
[1] The manual of
MobileECC can be downloaded here.
[2] The software of
MobileECC can be downloaded here.
[3] My public key file
can be downloaded here.
and I can be requested to be an introducer of the web of trust.
[4] The required
Microsoft .NET Framework Version 1.1 Redistributable Package (23698KB) or
better from Microsoft is at here.
[5] The design of one
unit of self-created Chinese language password can be downloaded here.
[6] The random selection
of Chinese characters can be downloaded here.
[7] To add textual semantic
noises, it can be downloaded here.
Public
Key File :
[1] My public key file,
i.e. Kok-Wah Lee @ Xpree Jinhua Li’s, can be downloaded here.
[2] Here, I can be
requested to be an introducer for a Web of Trust or you may form a trust web on your own.
[3] If you need to
upgrade your public key file into public key certificate, please send your
public key file with filled in details to me
via email at <kokwah
[at] xpreeli.com>.
[4] For other methods on
how to exchange the public key files among multiple users, please refer to the
manual here.
Donation for the Product Development Costs
of MePKC Applications :
If you think that you
would like to help funding the product development costs of MePKC applications,
please feel free and happy to make some donations.
D0002:
Please click the button above for your generous donation.
For
a minimum donation amount of USD$1, the net donation after the deduction of
commission fees is ((1-5.4%)*USD$1 – USD$0.30) = USD$0.646.
When
you are using IE as web browser, and if you have problem to connect to the
PayPay online payment, please go to toolbar for “Tools” >
“Internet Options” > “Privacy” >
“Settings” > “Low” to reset the cookies settings.
The commission fees to be
paid to the PayPal, Inc.,
For PayPal personal
account, the commission fees are (5.4% + USD$0.30).
For domestic transactions
within Malaysia of PayPal premier/businees account, the commission fees are
(3.4% + USD$0.30) for monthly sales within USD$0-3000, (2.9% + USD$0.30) for
monthly sales within USD$3000-10000, (2.7% + USD$0.30) for monthly sales within
USD$10000-100000, and (2.4% + USD$0.30) for monthly sales more than USD$100000.
For cross-border
transactions outside Malaysia of PayPal premier/businees account, the
commission fees are (3.9% + USD$0.30) for monthly sales within USD$0-3000,
(3.4% + USD$0.30) for monthly sales within USD$3000-10000, (3.2% + USD$0.30)
for monthly sales within USD$10000-100000, and (2.9% + USD$0.30) for monthly
sales more than USD$100000.
The FOREX commission fees
for multiple currency transactions are 2.5%.
Thanks for your donation.
J
For More
Information :
Please
visit www.xpreeli.com
E. &
O. E. = Errors and Omissions Exempted
E. &
O. E., + E. = Errors and Omissions Exempted, plus Estimations
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Email here : e96lkw@hotmail.com
Created on 26 January 2008
Updated on 23 September 2008