PGP
PGP (Pretty Good Privacy) is a data encryption and decryption program that provides cryptographic privacy and authentication for data communication, primarily used for securing email messages. It uses a combination of symmetric-key cryptography and public-key cryptography to ensure confidentiality, integrity, and authentication of digital communications. PGP is widely implemented in email clients and tools to protect sensitive information from unauthorized access.
Developers should learn and use PGP when handling sensitive email communications, such as in secure messaging systems, whistleblower platforms, or corporate environments requiring data protection. It is essential for ensuring end-to-end encryption in email workflows, preventing eavesdropping and tampering, and is commonly used in scenarios like secure file transfers, digital signatures for authenticity, and compliance with privacy regulations like GDPR.