APCSP20: IOC-2.B.5

CodeHS Lessons

Encryption is the process of encoding data to prevent unauthorized access to information. Decryption is the process of decoding the data. Two common encryption approaches are: Symmetric key encryption – a method of encryption involving one key for encryption and decryption; and Public key encryption – a method of encryption that pairs a public key for encryption and a private key for decryption. The sender does not need the receiver’s private key to encrypt a message, but the receiver’s private key is required to decrypt the message. Exclusion Statement (EK IOC-2.B.5): Specific mathematical procedures for encryption and decryption are beyond the scope of this course.