Consider the following circuit that contains a Trojan circuitry shown in red. Assume that the puts are statistically independent and have a 50/50 chance of being a logic one.
Consider the following circuit that contains a Trojan circuitry shown in red. Assume that the puts are statistically independent and have a 50/50 chance of being a logic one.
Computer Networking: A Top-Down Approach (7th Edition)
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Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![**Problem 2: Analyzing a Circuit with Trojan Circuitry**
Consider the following circuit that contains a Trojan circuitry shown in red. Assume that the inputs are statistically independent and have a 50/50 chance of being a logic one.
### Diagram Description
The diagram illustrates a logic circuit containing a Trojan component highlighted in red. The circuit has several logic gates connected in a sequence. The main elements are:
- **Logic Gates:** The circuit includes a combination of AND and OR gates.
- **Trojan Circuitry:** Highlighted in red, the Trojan part is connected at a point labeled "P sa0."
- **Inputs and Outputs:** The circuit has multiple independent inputs and a single output.
### Questions
a) What is the probability of triggering the Trojan with a random pattern?
b) What is the probability of observing the Trojan with a random pattern?
c) What is the probability of detecting the Trojan with a random pattern?
These questions require an understanding of how the Trojan affects the circuit's behavior and the probability of each specific condition occurring, given random input patterns.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb1ef10bf-163a-4a76-92e2-4bf769c005de%2Fd48cffde-a423-43db-b9ef-cd7036cc352d%2Fzv4evf_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem 2: Analyzing a Circuit with Trojan Circuitry**
Consider the following circuit that contains a Trojan circuitry shown in red. Assume that the inputs are statistically independent and have a 50/50 chance of being a logic one.
### Diagram Description
The diagram illustrates a logic circuit containing a Trojan component highlighted in red. The circuit has several logic gates connected in a sequence. The main elements are:
- **Logic Gates:** The circuit includes a combination of AND and OR gates.
- **Trojan Circuitry:** Highlighted in red, the Trojan part is connected at a point labeled "P sa0."
- **Inputs and Outputs:** The circuit has multiple independent inputs and a single output.
### Questions
a) What is the probability of triggering the Trojan with a random pattern?
b) What is the probability of observing the Trojan with a random pattern?
c) What is the probability of detecting the Trojan with a random pattern?
These questions require an understanding of how the Trojan affects the circuit's behavior and the probability of each specific condition occurring, given random input patterns.
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