Safaricom: Safaricom is a top telecommunications supplier in Kenya and one of the most commercial companies in the Central and East African region. It offers mobile money transfer, cloud computing, fiber optic services, ecommerce, mobile telephony, data, customer electronics and music streaming. It is most well-known as a mobile banking SMS-based service. Step taken by Safaricom: The steps taken by Safaricom to prevent hate speech during the 2013 elections are the company released guidelines to its clients that transferred huge SMS from candidates and political parties. It examined the SMS content and held the right to reject to transfer messages with subject that attacked members of a special party. Safaricom acted ethically: The guidelines assigned that senders, political party representative had to describe themselves and give registration documents or ID numbers. The message sent in the two official languages one is English or Kenya and another is Swahili by the company. The SMSs could not use abusive language and motivate people to attack individuals, make violence.

Question

We are considering the RSA encryption scheme. The involved numbers are small, so the communication is insecure. Alice's public key (n,public_key) is (247,7). A code breaker manages to factories 247 = 13 x 19 Determine Alice's secret key. To solve the problem, you need not use the extended Euclid algorithm, but you may assume that her private key is one of the following numbers 31,35,55,59,77,89.

Answer 1

Question

Chapter 6.4, Problem 2DQ

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Safaricom:

Safaricom is a top telecommunications supplier in Kenya and one of the most commercial companies in the Central and East African region.

It offers mobile money transfer, cloud computing, fiber optic services, ecommerce, mobile telephony, data, customer electronics and music streaming.

It is most well-known as a mobile banking SMS-based service.

Step taken by Safaricom:

The steps taken by Safaricom to prevent hate speech during the 2013 elections are the company released guidelines to its clients that transferred huge SMS from candidates and political parties.

It examined the SMS content and held the right to reject to transfer messages with subject that attacked members of a special party.

Safaricom acted ethically:

The guidelines assigned that senders, political party representative had to describe themselves and give registration documents or ID numbers.

The message sent in the two official languages one is English or Kenya and another is Swahili by the company.

The SMSs could not use abusive language and motivate people to attack individuals, make violence.

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We are considering the RSA encryption scheme. The involved numbers are small, so the communication is insecure. Alice's public key (n,public_key) is (247,7). A code breaker manages to factories 247 = 13 x 19 Determine Alice's secret key. To solve the problem, you need not use the extended Euclid algorithm, but you may assume that her private key is one of the following numbers 31,35,55,59,77,89.

Consider the following Turing Machine (TM). Does the TM halt if it begins on the empty tape? If it halts, after how many steps? Does the TM halt if it begins on a tape that contains a single letter A followed by blanks? Justify your answer.

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