MR. E'S ENCRYPTION POWERPOINT 5 OF 5

1. L.O: STUDENTS WILL BE ABLE
TO EXPLAIN CRYPTOGRAPHY
AND INNOVATIONS.
110-120 minutes
DO NOW: READ
Unit 2 Lab 6: Encryption,
Page 5

2. FOR YOU TO DO:
1. Choose and research an innovation that
has some relation to cryptography. Two
suggestions are listed on the next page,
but you may choose a different
innovation, if you like—any innovation
that interests you.

3. For example, you might look into some recent stories
about hacking into car information systems, or stories of
people showing they can interfere with self-driving cars:
• Why driverless cars may never happen (from UK
Telegraph, 9/8/15)
• Counting on government to protect cars from
hackers isn't our best option (op-ed from
Washington Post, 8/26/15)
• Jeep owners urged to update their cars after
hackers take remote control (Guardian, 7/21/15)

4. you might research Bitcoin, a
"cryptocurrency":
• Bitcoin: The payment revolution (The Market
Mogul)
• 21 Things I Learned About Bitcoin From Living On It
For A Week (Forbes, 5/9/13)
• Bitcoin's Dark Side Could Get Darker (MIT Tech
Review, 8/13/15)

5. 2. The following are prompts from the AP Explore
Task. Write about your innovation, responding to
each prompt in a separate paragraph. Remember to
cite your sources.
a. the innovation name and a description of the intended
purpose of the innovation (100 words max)
b. an explanation of the technical details of this innovation in
terms that someone completely unfamiliar with the
innovation would understand (100 words max)
c. a description of the role computing plays in implementing
the functionality associated with the innovation (100
words max)
d. a description of the relationship between data and the
innovation. For example, you could describe the data used
or produced by the innovation or any privacy issues
associated with the innovation data (100 words max).
3. When you’re done: Trade your paragraphs
with a partner. Read your partner's response
for each prompt. How well did the paragraphs
respond to the prompts?

6. HOMEWORK:
read Chapter 5 of “Blown to Bits”.
Reading through the entire chapter will be helpful,
especially to get a better understanding of the
evolution of encryption methods and some details of
public key encryption.

7. Learning Objectives:
1. LO 6.3.1 Identify existing cybersecurity
concerns and potential options to
address these issues with the Internet
and the systems built on it. [P1]
2. LO 7.5.2 Evaluate online and print
sources for appropriateness and
credibility [P5]
GIVE EXAMPLES OF THESE LEARNING OBJECTIVES IN THE LESSON

8. Enduring Understandings:
1. EU 6.3 Cybersecurity is an important
concern for the Internet and the systems
built on it.
2. EU 7.5 An investigative process is aided by
effective organization and selection of
resources. Appropriate technologies and
tools facilitate the accessing of information
and enable the ability to evaluate the
credibility of sources
EXPLAIN THESE “ENDURING UNDERSTANDINGS”

9. Essential Knowledge:
1. EK 1.2.5A The context in which an artifact is used
determines the correctness, usability, functionality, and
suitability of the artifact.
2. EK 1.2.5B A computational artifact may have weaknesses,
mistakes, or errors depending on the type of artifact.
3. EK 1.2.5C The functionality of a computational artifact may
be related to how it is used or perceived.
4. EK 1.2.5D The suitability (or appropriateness) of a
computational artifact may be related to how it is used or
perceived.
5. EK 3.2.2D Maintaining privacy of large data sets containing
personal information can be challenging.
EXPLAIN THESE “ENDURING UNDERSTANDINGS”

10. Essential Knowledge:
• 6.EK 3.3.1A Digital data representations involve trade-
offs related to storage, security, and privacy concerns.
• 7.EK 3.3.1B Security concerns engender trade-offs in
storing and transmitting information.
• 8.EK 3.3.1F Security and privacy concerns arise with
data containing personal information.
• 9. EK 5.4.1L An explanation of a program helps people
understand the functionality and purpose of it.
• 10. EK 5.4.1M The functionality of a program is often
described by how a user interacts with it
EXPLAIN THESE “ENDURING UNDERSTANDINGS”

11. Essential Knowledge:
• 11.EK 6.1.1A The Internet connects devices and
networks all over the world.
• 12.EK 6.1.1D The Internet and the systems built on it
facilitate collaboration.
• 13.EK 6.3.1A The trust model of the Internet involves
trade-offs.
• 14. EK 6.3.1B The DNS was not designed to be
completely secure.
• 15. EK 6.3.1C Implementing cybersecurity has
software, hardware, and human components.
• 16. EK 6.3.1D Cyber warfare and cyber crime have
widespread and potentially devastating effects
EXPLAIN THESE “ENDURING UNDERSTANDINGS”

12. Essential Knowledge:
• 17. EK 6.3.1H Cryptography is essential to many
models of cybersecurity.
• 18. EK 6.3.1I Cryptography has a mathematical
foundation.
• 19. EK 6.3.1J Open standards help ensure
cryptography is secure.
• 20. EK 6.3.1K Symmetric encryption is a method of
encryption involving one key for encryption and
decryption.
• 21. EK 6.3.1L Public key encryption, which is not
symmetric, is an encryption method that is widely
used because of the functionality it provides.
EXPLAIN THESE “ENDURING UNDERSTANDINGS”

13. Essential Knowledge:
• 22.EK 6.3.1M Certificate authorities (CAs) issue
digital certificates that validate the ownership of
encrypted keys used in secured communications and
are based on a trust model.
• 23.EK 7.3.1A Innovations enabled by computing raise
legal and ethical concerns.
• 24.EK 7.3.1G Privacy and security concerns arise in
the development and use of computational systems
and artifacts.
• 25.EK 7.3.1L Commercial and governmental curation
of information may be exploited if privacy and other
protections are ignored.
EXPLAIN THESE “ENDURING UNDERSTANDINGS”