👉 PGP, or Pretty Good Privacy, is a cryptographic protocol designed for secure communication over potentially insecure networks, primarily used for encrypting and signing electronic messages. It operates on the principles of public-key cryptography, where a pair of keys—a public key and a private key—is generated. The public key is used to encrypt messages, ensuring that only the intended recipient, who possesses the corresponding private key, can decrypt and read them. PGP also supports digital signatures, allowing users to verify the authenticity and integrity of messages by using their private key to sign the data, which can then be verified by anyone with the sender's public key. This dual-key system ensures confidentiality, integrity, and non-repudiation in digital communications, making PGP a robust tool for secure data exchange.
