- •Unit 1 Read and translate the text. Text a
- •2. Provide definitions in the context of protecting information in computers:
- •3. Answer the questions to the text and perform the tasks.
- •4. Discuss the basic principles of information protection.
- •1. Use the correct tense form.
- •2. Put the questions to the following sentences.
- •Does Anti-Virus Software Still Matter?
- •2. Are the statements true or false?
- •4. Discuss the security features of Vista and non-Vista systems. Grammar revision
- •1. Use the required form of the adjective in the following sentences.
- •Comprehension check
- •1. Give the Russian equivalents to the following words and word combinations.
- •2. Translate the following into English.
- •3. Change the active form into the passive one.
- •4. Complete the sentences using the Passive Voice.
- •5. Use the Passive Voice in the following sentences.
- •Summarize the text. Text b Antivirus Defense Development.
- •2. Are the statements true or false?
- •3. Answer the questions to the text.
- •1. Fill in the blanks with modal verbs.
- •3. Put the verbs in brackets into the correct tenses. Conditional sentences: type 2.
- •4. Put the verbs in brackets into the correct tenses. Conditional sentences: type 3.
- •5. Translate the sentences.
- •1. Give the Russian equivalents to the following words and word combinations.
- •2. Are the statements true or false?
- •4. Discuss the security features of Vista and non-Vista systems.
- •5. Use the correct tense form.
- •6. Put the questions to the following sentences.
- •7. Summarize the text. Text b Antivirus Defense Development
- •8. Supplementary reading.
- •Read and translate the text.
- •2. Summarize the text.
- •1. Answer the questions.
- •2. Are the statements true or false?
- •5. Supplementary reading.
- •1.Read and translate the text.
- •1. Answer the questions
- •2. Are the following statements true or false?
- •4. Summarize the text using the following expressions:
- •5. Supplementary reading.
- •7. Give the English equivalents of the following words and word combinations.
- •8. Give the Russian equivalents of the following words and word combinations.
- •9. Supply the missing words where necessary.
- •10. Put the corresponding words and word combinations in the sentences.
- •11. Translate into English.
2. Summarize the text.
Text B
The protocol SSL and its extension PCT
Today the various mechanisms for the solution of the wide spectrum of problems of information safety maintenance in the INTERNET are developed. The most known and the most advanced information protecting mean is protocol Secure Socket Layer (SSL) offered by Netscape. The wide distribution of it is caused the SSL realization by the other large corporations such as the IBM, Microsoft and Spyglass. They have embedded this protocol in the applications using for systems based on architecture the client-server.
The version SSL 2.0 takes into account two most important aspects of information protection in the network: authentication and enciphering. Authentication is necessary for confirmation of the fact that the user is legal, it usually needs for the user only to input the identifier (network "name") and password. However during authenticating process the intruder can "overhear" on the communication channel and intercept the user password and identifier. The mechanism of enciphering of the password and identifier before their sending via network is used for it prevention. The mechanism SSL and the authenticating methods of types PAP or CHAP that used in many remoted access systems, are mainly similar.
The protection from UAA is necessary not only for user identificating data, but also for electronic mail or for confidential files loaded from FTP-server. In the SSL for these purposes is realizing the enciphering that allows to ensure the safety practically to the all information, transferred between user and server.
Protocol SSL is not absolutely perfect. Some doubts concerning reliability of used enciphering mechanism are expressed. In order to correct this situation, the Microsoft has offered the extension of the protocol SSL that named PCT (Private Communications Technology). It is expected, that this new protocol will be embedded into the structure of the universal system "Information Server" for access in the INTERNET, created by Microsoft. The additional key specially intended for authentication is proposed in the PCT. Besides that the Microsoft is going to develop more proof algorithm for random numbers generation. This generator, intended for creating of enciphering key, is considered as one weaker item in the protocol SSL safety. It is mentioned, that protocol SSL even supplied with PCT options, is not capable to solve a problem of absolute safety of the information. The systems of general protection, the similar to the combination SSL and PCT only prevent an opportunity of viewing of transferring messages and data contents that may happened on communication lines. However they are not quite suitable for restriction or protection from access to the information sources.
There are several groups of the INTERNET users, whose requirements are out from frameworks of standard confidentiality. For example, one of such large and influential groups — governmental structures. The absolutely reliable authentication is especially important for these structures. The critical importance for them has the guarantee that the users and information services are really legal. The system Fortezza is mechanism guaranteeing the increased information security level and more preferable to these users of the INTERNET.
COMPREHENSION CHECK