Asymmetric keys and encryption methods

• show understanding of the terms: public key, private key, plain text, cipher text, encryption and asymmetric key cryptography
• show understanding of how the keys can be used to send a private message from the public to an individual/organisation\
• show understanding of how the keys can be used to send a verified message to the public

Digital signatures and digital certificates

• show understanding of how a digital certificate is acquired
• show understanding of how a digital certificate is used to produce digital signatures

Encryption protocols

• show awareness of the purpose of Secure Socket Layer (SSL)/Transport Layer Security (TLS)
• show awareness of the use of SSL/TLS in client-server communication
• show awareness of situations where the use of SSL/TLS would be appropriate

Malware

• show understanding of malware: viruses, worms, spam, phishing, pharming
• describe vulnerabilities that the various types of malware can exploit
• describe methods that can be used to restrict the effect of malware