How does public key encryption work?
What will be an ideal response?
ANSWER: In public key encryption, data is encrypted with a private key known only to the user, and decrypted with a mathematically related public key that can be made available through a third-party source, such as a public key server. This ensures data integrity, as the sender's public key will only work if the data has not been tampered with. Alternatively, data can be encrypted with the public key, and then can only be decrypted with the matching private key. This ensures data confidentiality, as only the intended recipient (the owner of the keys) can decrypt the data. A public key server is a publicly accessible host (such as a server on the Internet) that freely provides a list of users' public keys, much as a telephone book provides a list of peoples' phone numbers. The combination of a public key and a private key is known as a key pair.
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1. True/False: A sequential structure consists of a series of consecutive statements, executed in the order in which they appear. 2. True/False: Comments are helpful to programmers but must be used with care since an incorrectly worded comment can cause a program crash. 3. True/False Structured programming is a method used to design and code programs in a systematic, organized manner.
In the following code, what does getDocumentBase()return?
play(getDocumentBase(), "mysound.wav"); A) A URL object containing the location of the applet's .class file B) A URL object containing the location of the HTML file that invoked the applet C) The HTML location "mysound.wav" D) The sound file itself
Windows 8 replaces ________ operating systems
A) Windows XP B) Windows 7 C) Windows Vista D) Windows 95
A(n) _____ contains the declarations for namespaces, variables, and user-defined functions-which can be imported into other query documents.
Fill in the blank(s) with the appropriate word(s).