GNU Privacy Guard (GPG)

A free software implementation of the OpenPGP encryption standard.

Understanding GPG

GPG enables secure communication through public-key cryptography, allowing users to encrypt, decrypt, and sign data. It's widely used for email security, file encryption, and digital signatures.

Key Components

1. Key Management

Key generation
Key distribution
Key revocation
Trust management

2. Encryption Functions

Message encryption
File encryption
Digital signatures
Key certification

Challenges and Considerations

Key management complexity
User education needs
Integration challenges
Performance impact
Compatibility issues