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FEATURE 1
Gaining a Clear Understanding of the Key Points of Cipher Communication
Learning about the processing mechanism of cipher communication
and the implementation of SSL
- Networks have many security risks. As a result, cipher communication
has become familiar to us; but we still do not know much about its mechanism.
For example, the function of cipher communication is not limited to
just hiding the content of communication by way of encryption. It also
identifies the sender of a message and confirms whether a message is
falsified or not, using a combination of several encryption technologies.
Still, questions remain about how the mechanism of cipher communication
carries out such functions and how it provides security to networks.
The answers to these questions will be found through a clearer understanding
of the key points of encryption technology and cipher communication.
Part 1 – Principle: Rearranging and replacing arrays of
bits in accordance with rules
Part 2 – Types: There are three types of encryption technologies,
and each has different applications: symmetric-key cryptography; hash
algorithm; and public-key cryptography
Part 3 – Combination: The three types of encryption technologies
play separate roles, and their actual operations can be confirmed by
SSL
Boxed Article 1: The features of DES (upon which the current
encryption technologies were founded) and a new standard AES
Boxed Article 2: Triple DES processes data three times in an
encrypt-decrypt-encrypt sequence
Boxed Article 3: How to create random numbers upon which cryptographic
keys are based
FEATURE 2
Learning with the Help of Pictures
A Picture Book on Telecommunication Cables
From pair wires to underwater cables
- There are all kinds of telecommunication cables. This article offers
a thorough explanation of the various kinds of cables using pictures
and focusing on their features
Part 1: Requirements for telecommunication cables
Part 2: Thorough examination of 25 kinds of cables
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