How to make Secret Codes

What is the main purpose of cryptography?

• To confuse people

• To make messages longer

• To communicate secretly

• To create artistic patterns

What does a cipher do to a regular text?

• Makes it colorful

• Shortens the text

• Translates it to another language

• Converts it into ciphertext

Who used the Caesar cipher?

• Napoleon Bonaparte

• Albert Einstein

• Julius Caesar

• Leonardo da Vinci

What is needed to decrypt a message encrypted with a keyword?

• A dictionary

• A computer

• The keyword

• A special pen

What makes a code difficult to crack?

• The length of the message

• The color of the text

• The complexity of the cipher

• The age of the message