CIS 105 Survey of Computer Information Systems

1
CIS 105 Survey of Computer Information Systems

• Essential Concepts and Terminology
• Study Unit 11

2
Identity Theft.

• Fraudulent use of another person's identifying
  information, commonly to establish a credit card
  account.

3
Privacy.

• In the electronic media context, the ability to
  restrict or eliminate the collection, use , and
  sale of personal and confidential information.
  In the jurisprudence context, the right to be
  left alone.

4
Encryption.

• The process of coding information so that it can
  only be understood by the intended recipient.

5
Defamation.

• Injury to another person's reputation by means of
  false and malicious statements.

6
Libel.

• A false or malicious written or printed
  statement, or any symbolic representation
  exposing a person to public defamation.

7
Cookie.

• A file written from a Web server to a client
  computer's hard disk, usually to record and
  provide information about the user for future
  browsing interactions.

8
Encryption Algorithm.

• The step-by-step method for encrypting and
  decrypting a message.

9
Symmetric Encryption.

• Use of the same cipher key for both encryption
  and decryption.

10
Data Encryption Standard (DES).

• A commonly-used, symmetric key encryption system
  developed by United States security agencies.

11
Strong Encryption.

• Encryption methods that are very difficult or
  impossible to break.

12
Key Interception.

• The theft of a decryption key, the major
  vulnerability of encryption.

13
Public Key Encryption (PKE).

• An encryption method using two keys, a public key
  to encrypt messages, and a private key to decrypt
  known only to the recipient.

14
Computationally Intensive.

• Processing that placed a heavy burden on the
  processing unit.

15
Cryptoanalysis.

• Techniques used to break codes.

16
Key Length.

• The length, in bits, of an encryption code. Key
  lengths of 128 bits are considered invulnerable
  to decryption.

17
Digital Certificate.

• A security method that validates an individual's
  identity.

18
Digital Signature.

• A technique used to determine if a message has
  been altered.

19
Certificate Authority (CA).

• A company that verifies the identity of
  individuals and issues digital certificates
  attesting to the veracity of identity.

20
Pretty Good Privacy (PGP).

• The most widely used digital signature and
  certificate system.

21
End of Study Unit 11.

• Return to first slide
• Move to Study Unit 12
• CIS 105 Home Page