Passphrase

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. Which is a passphrase?

A purple-tractor-melon-sock

B Pa$$w0rd1

2. How many random words make a good passphrase?

A Just one

B Three or four

3. Which passphrase is easier to remember but hard to guess?

A kettle sunset giraffe wobble

B xK9#qT2!vLp7

4. Which words should you AVOID in a passphrase?

A Words that have nothing to do with you

B Your pet's name and your birthday

5. Which is the best way to make a passphrase a bit stronger?

A Add a number or symbol, like river!cloud7pencil

B Use the same words as a song lyric

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1purple-tiger-bucket-lamp		AThis uses a name linked to you and is too short. A passphrase needs three or four random, unrelated words.
2cloud7!sandal!fox!pencil		BA passphrase with a number and symbols added to make it even harder to guess
3A good passphrase uses three or four random words that have nothing to do with each other		Cspoon-rocket-banana-cliff
4A passphrase should avoid words linked to you, like your pet's name or your favourite team		DRex-Swans-Emma-2012
5MyDogMax		EA passphrase made of four random, unrelated words that is easy to remember but hard to guess
6I love my school		FThis is a common phrase about you. The words are related and easy to guess, so it should be random words like lamp-frog-ocean-chair.

Definitions

passphrase

Fill in the Blanks

Complete each line of code by filling in the missing parts.

__________ = "river cactus pencil"

words = ["river", "cactus", "pencil"] print(___(words))

passphrase = "river cactus pencil" _ "7!"

avoid = ["pet", "name", "birthday"] if "pet" __ avoid: print("Pick unrelated words")

passphrase = "river cactus pencil 7" if len(passphrase) __ 16: print("Long enough")

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A words = ["fox", "map", "sky"]

B passphrase = "-".split(words)

C print(passphrase)

Question 2

A words = ["fox", "map", "sky"]

B count = length(words)

C if count >= 3:

D print("Good length")

Question 3

A phrase = "fox-map-sky"

B number = 7

C phrase = phrase + number

D print(phrase)

Question 4

A avoid = ["Sam", "Rex", "2010"

B word = "Rex"

C if word in avoid:

D print("Too guessable")

Question 5

A passphrase = "sock rocket fig

B length = len(passphrase)

C print(length)

Answer Key

Passphrase

Section A: Quick Questions

A — purple-tractor-melon-sock

B — Three or four

A — kettle sunset giraffe wobble

B — Your pet's name and your birthday

A — Add a number or symbol, like river!cloud7pencil

Section B: Match the Pairs

purple-tiger-bucket-lamp → A passphrase made of four random, unrelated words that is easy to remember but hard to guess

cloud7!sandal!fox!pencil → A passphrase with a number and symbols added to make it even harder to guess

A good passphrase uses three or four random words that have nothing to do with each other → spoon-rocket-banana-cliff

A passphrase should avoid words linked to you, like your pet's name or your favourite team → Rex-Swans-Emma-2012

MyDogMax → This uses a name linked to you and is too short. A passphrase needs three or four random, unrelated words.

I love my school → This is a common phrase about you. The words are related and easy to guess, so it should be random words like lamp-frog-ocean-chair.

Section C: Definitions

passphrase — A long password made of several unrelated words, like three or four random words. It is easy to remember but hard to guess. Add a number or symbol and avoid words linked to you.

Section D: Fill in the Blanks

passphrase = "river cactus pencil"

words = ["river", "cactus", "pencil"]
print(len(words))

passphrase = "river cactus pencil" + "7!"

avoid = ["pet", "name", "birthday"]
if "pet" in avoid:
    print("Pick unrelated words")

passphrase = "river cactus pencil 7"
if len(passphrase) >= 16:
    print("Long enough")

Section E: Spot the Error

B — split() breaks a string apart, but here we want to combine the words into one passphrase. It should be "-".join(words).

B — Python has no length() function. The word count is found with len(words).

C — You cannot add a number directly to text. The number must be turned into text first with str(number) so it can be added to the passphrase.

A — The list is missing its closing square bracket ]. The words to avoid (names, pets, birth years) must be inside a complete list.

A — The string is missing its closing quote mark. It should end with " after fig.