1.A. Publicizing an attack. In 2009, a Black Hat conference was held and one of the topics was to educate the public about the vulnerabilities of Iphone. The group also warned Apple about the problems with Iphone so Apple engineers found ways to fix that. This is also the logic why commercial enterprises publicize an attack…
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Moreover, even if the vulnerabilities are exposed, it is likely that the hackers have used that information before. B.Keeping the attack confidential. This approach is being lauded by many organizations because this restricts the movements of hackers who are looking for exploits. This approach is good for government agencies because the general public can react hysterically once they learn that public agencies are not that secure. Perhaps, this approach should be used by organizations and agencies that can compromise national security. 2. The symmetric type of encryption is more popularly used simply because it more convenient and faster to implement than asymmetric encryption. This is due to the fact that same key is used to encrypt and decrypt the code by both receiver and sender of the message. There are many two main types of symmetric algorithms – block and stream ciphers. Examples of symmetric key cryptography are: DES, IDEA, AES and RC2. So far, DES is the most commonly used form of symmetric key. The only challenge presented to this method of encryption is that both parties must have a secure method when exchanging keys. Also, problems in verification can be encountered because both sender and user share the same key. Nevertheless, symmetric type is still used due to its speed and efficiency.
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